Skip to content

M
mariadb
Commit b64282b1 authored by unknown's avatar unknown
Browse files
Options

Re-arrange support information in manual.texi so that no details about 

pricing and support levels are given.  Also some style changes.


Docs/manual.texi:
  Re-arrange support information so that no details about
  pricing and support levels are given.  Also some style
  changes ("email" -> "e-mail", fix parentheses).
parent 1999b0c0
Show whitespace changes
Inline Side-by-side
Showing with 313 additions and 626 deletions
Docs/manual.texi
View file @ b64282b1
...@@ -219,7 +219,7 @@ The @code{mysqlbug} script should be used to generate bug reports. ...@@ -219,7 +219,7 @@ The @code{mysqlbug} script should be used to generate bug reports.
For source distributions, the @code{mysqlbug} script can be found in the For source distributions, the @code{mysqlbug} script can be found in the
@file{scripts} directory. For binary distributions, @code{mysqlbug} can @file{scripts} directory. For binary distributions, @code{mysqlbug} can
be found in the @file{bin} directory. If you have found a sensitive be found in the @file{bin} directory. If you have found a sensitive
security bug in MySQL, you should send an email to security bug in MySQL, you should send an e-mail to
@email{security@@mysql.com}. @email{security@@mysql.com}.
@cindex errors, reporting @cindex errors, reporting
...@@ -239,7 +239,7 @@ MySQL, see @ref{MySQL-Books}. ...@@ -239,7 +239,7 @@ MySQL, see @ref{MySQL-Books}.
@menu @menu
* MySQL and MySQL AB:: MySQL, MySQL AB, and Open Source * MySQL and MySQL AB:: MySQL, MySQL AB, and Open Source
* MySQL Information Sources:: MySQL Information Sources * MySQL Information Sources:: MySQL Information Sources
* Licensing and Support:: MySQL Licensing and Support * Licensing and Support:: MySQL Support and Licensing
* Compatibility:: How Standards-compatible Is MySQL? * Compatibility:: How Standards-compatible Is MySQL?
* Comparisons:: How MySQL Compares to Other Databases * Comparisons:: How MySQL Compares to Other Databases
* TODO:: MySQL and the future (The TODO) * TODO:: MySQL and the future (The TODO)
...@@ -317,15 +317,15 @@ us. ...@@ -317,15 +317,15 @@ us.
MySQL is very fast, reliable, and easy to use. If that is what MySQL is very fast, reliable, and easy to use. If that is what
you are looking for, you should give it a try. MySQL also has a you are looking for, you should give it a try. MySQL also has a
very practical set of features developed in very close cooperation with practical set of features developed in close cooperation with
our users. You can find a performance comparison of MySQL our users. You can find a performance comparison of MySQL
to some other database managers on our benchmark page. to some other database managers on our benchmark page.
@xref{MySQL Benchmarks}. @xref{MySQL Benchmarks}.
MySQL was originally developed to handle very large databases MySQL was originally developed to handle large databases
much faster than existing solutions and has been successfully used in much faster than existing solutions and has been successfully used in
highly demanding production environments for several years. Though highly demanding production environments for several years. Though
under constant development, MySQL today offers a rich and very under constant development, MySQL today offers a rich and
useful set of functions. The connectivity, speed, and security make useful set of functions. The connectivity, speed, and security make
MySQL highly suited for accessing databases on the Internet. MySQL highly suited for accessing databases on the Internet.
...@@ -366,16 +366,20 @@ to the MySQL server source code and the MySQL trademark. ...@@ -366,16 +366,20 @@ to the MySQL server source code and the MySQL trademark.
A significant amount of revenues from our services goes to developing A significant amount of revenues from our services goes to developing
MySQL. @xref{What-is}. MySQL. @xref{What-is}.
@menu
* Contact information:: Contact information
@end menu
MySQL AB has been profitable providing MySQL from the start. MySQL AB has been profitable providing MySQL from the start.
We don't get any outside funding, but have earned all our money ourselves. We don't get any outside funding, but have earned all our money ourselves.
We are searching after partners that would like to support our development We are searching for partners that would like to support our development
of MySQL so that we could accelerate the development pace. If you of MySQL so that we can accelerate the pace of development. If you
are interested in doing this, you can email @email{partner@@mysql.com} about are interested in doing this, please e-mail @email{partner@@mysql.com}!
this!
MySQL AB has currently 20+ people MySQL AB currently has over twenty people
(@uref{http://www.mysql.com/development/team.html}) on its payroll and is growing rapidly. (@uref{http://www.mysql.com/development/team.html})
on its payroll and is growing rapidly.
Our main sources of income are: Our main sources of income are:
...@@ -385,21 +389,21 @@ Our main sources of income are: ...@@ -385,21 +389,21 @@ Our main sources of income are:
Commercial high quality support for MySQL provided by the Commercial high quality support for MySQL provided by the
MySQL developers themselves. If you are interested in purchasing MySQL developers themselves. If you are interested in purchasing
a support contract, please visit @uref{https://order.mysql.com/} to view our a support contract, please visit @uref{https://order.mysql.com/} to view our
support options or to order support. support options and order support.
@item @item
Consulting services. We have developers and consultants in 12 countries Consulting services. We have developers and consultants in 12 countries
and partners in many other countries that can help you with almost any and partners in many other countries that can help you with almost any
MySQL related issues. If you need consulting services, please MySQL related issues. If you need consulting services, please
email a good description of your needs to @email{info@@mysql.com}! If we e-mail a good description of your needs to @email{info@@mysql.com}! If we
can't handle this ourselves we can usually find a partner or a developer can't handle this ourselves we can usually find a partner or a developer
that can help you with your problems. that can help you with your problems.
@item @item
We sell licenses for using MySQL as an embedded database. Licensing MySQL for use as an embedded database. @xref{Licensing policy}.
@xref{Cost}. If you have a commercial product for which you need a fast, If you have a commercial product for which you need a fast,
high quality database, but you can't afford to make your product Open Source, high quality database, but you can't afford to make your product Open Source,
you can buy the right to use the MySQL server under a normal you can buy the right to use the MySQL server under a
commercial copyright. If you are interested in this you can buy commercial copyright. If you are interested in this you can buy
MySQL licenses at @uref{https://order.mysql.com/} or contact us MySQL licenses at @uref{https://order.mysql.com/} or contact us
at @email{licensing@@mysql.com}. at @email{licensing@@mysql.com}.
...@@ -407,26 +411,26 @@ at @email{licensing@@mysql.com}. ...@@ -407,26 +411,26 @@ at @email{licensing@@mysql.com}.
@item @item
Advertising. @uref{http://www.mysql.com/} is a very popular web site with Advertising. @uref{http://www.mysql.com/} is a very popular web site with
more than 10,000,000 page views per months (January 2001). By putting a more than 10,000,000 page views per months (January 2001). By putting a
banner on this you are guaranteed to reach a lot of potential customers banner on this site you are guaranteed to reach a lot of potential customers
in the Open source, Linux and database community. If you are interested in the open source, Linux and database communities. If you are interested
in this email @email{advertising@@mysql.com}. in this e-mail @email{advertising@@mysql.com}.
@item @item
We are building a partner program to be able to provide MySQL We are building a partner program to be able to provide MySQL
services in every country. If you are interested in becoming a partner services in every country. If you are interested in becoming a partner
of MySQL AB please visit of MySQL AB please visit
@uref{http://www.mysql.com/information/partners.html} or email @uref{http://www.mysql.com/information/partners.html} or e-mail
@email{partner@@mysql.com}. @email{partner@@mysql.com}.
@item @item
We provide MySQL training through our partner programs. For more We provide MySQL training through our partner programs. For more
information, please email @email{info@@mysql.com}. information, please e-mail @email{info@@mysql.com}.
@item @item
The MySQL brand has, since 1995, been associated with speed and The MySQL brand has, since 1995, been associated with speed and
reliability, and is known to be something you can depend upon. If you are reliability, and is known to be something you can depend upon. If you are
interested in using the MySQL trademark in your marketing, you interested in using the MySQL trademark in your marketing, you
can email @email{info@@mysql.com} about this. can e-mail @email{info@@mysql.com} about this.
@end itemize @end itemize
The MySQL core values show our dedication to MySQL and The MySQL core values show our dedication to MySQL and
...@@ -436,13 +440,13 @@ We want MySQL to be: ...@@ -436,13 +440,13 @@ We want MySQL to be:
@itemize @bullet @itemize @bullet
@item @item
The best and the most used database in the world. The best and the most widely used database in the world.
@item @item
Available and affordable for all. Available and affordable for all.
@item @item
Easy to use. Easy to use.
@item @item
Continuously improved while remaining fast and safe. Continuously improving while remaining fast and safe.
@item @item
Fun to use and improve. Fun to use and improve.
@item @item
...@@ -459,13 +463,56 @@ Aim to be good citizens. ...@@ -459,13 +463,56 @@ Aim to be good citizens.
@item @item
Prefer partners that share our values and mind-set. Prefer partners that share our values and mind-set.
@item @item
Answer mail and give support. Answer e-mail and provide support.
@item @item
Are a virtual company, networking with others. Are a virtual company, networking with others.
@item @item
Work against software patents. Work against software patents.
@end itemize @end itemize
@node Contact information, , What is MySQL AB, What is MySQL AB
@subsubsection Contact Information
@cindex contact information
@cindex licensing, contact information
@cindex advertising, contact information
@cindex employment, contact information
@cindex partnering with MySQL
@cindex employment with MySQL
@cindex jobs at MySQL
For commercial licensing, please contact the MySQL licensing
team. The much preferred method is by e-mail to
@email{licensing@@mysql.com}. Fax is also possible but handling of
these may take much longer (Fax +46-8-729 69 05).
If you represent a business that is interested in partnering with
MySQL, please send e-mail to @email{partner@@mysql.com}.
For timely, precise answers to technical questions about MySQL
you should @uref{https://order.mysql.com/, order} one of our
@uref{http://www.mysql.com/support/arrangements/types.html, support contracts}.
MySQL support is provided by the MySQL developers so the
standard is extremely high.
If you are interested in placing a banner advertisement on our Web site,
please send e-mail to @email{advertising@@mysql.com}.
If you are interested in any of the jobs listed in our
@uref{http://www.mysql.com/development/jobs/, jobs} section, please send e-mail
to @email{jobs@@mysql.com}.
For general discussion amongst our many users, please direct your attention to
the appropriate @uref{http://www.mysql.com/documentation/lists.html, mailing
list}.
For general information inquires, please send e-mail to
@email{info@@mysql.com}.
For questions or comments about the workings or content of the Web site,
please send e-mail to @email{webmaster@@mysql.com}.
@node Manual-info, Manual conventions, What is MySQL AB, MySQL and MySQL AB @node Manual-info, Manual conventions, What is MySQL AB, MySQL and MySQL AB
@subsection About This Manual @subsection About This Manual
...@@ -550,7 +597,7 @@ shell> setenv VARNAME value ...@@ -550,7 +597,7 @@ shell> setenv VARNAME value
shell> some_command shell> some_command
@end example @end example
Often, database, table, and column names must be substituted into commands. To Often database, table, and column names must be substituted into commands. To
indicate that such substitution is necessary, this manual uses indicate that such substitution is necessary, this manual uses
@code{db_name}, @code{tbl_name} and @code{col_name}. For example, you might @code{db_name}, @code{tbl_name} and @code{col_name}. For example, you might
see a statement like this: see a statement like this:
...@@ -933,10 +980,10 @@ using this with good results. ...@@ -933,10 +980,10 @@ using this with good results.
@item BDB Tables -- Beta @item BDB Tables -- Beta
The Berkeley DB code is very stable, but we are still improving the interface The Berkeley DB code is very stable, but we are still improving the interface
between MySQL and BDB tables, so it will take some time before this between MySQL and BDB tables, so it will take some time before this
is as tested as the other table types. is tested as well as the other table types.
@item InnoDB Tables -- Beta @item InnoDB Tables -- Beta
This is a recent addition to @code{MySQL}. They appear to work good and This is a recent addition to @code{MySQL}. They appear to work well and
can be used after some initial testing. can be used after some initial testing.
@item Automatic recovery of MyISAM tables - Beta @item Automatic recovery of MyISAM tables - Beta
...@@ -944,15 +991,15 @@ This only affects the new code that checks if the table was closed properly ...@@ -944,15 +991,15 @@ This only affects the new code that checks if the table was closed properly
on open and executes an automatic check/repair of the table if it wasn't. on open and executes an automatic check/repair of the table if it wasn't.
@item MERGE tables -- Beta / Gamma @item MERGE tables -- Beta / Gamma
The usage of keys on @code{MERGE} tables is still not that tested. The The usage of keys on @code{MERGE} tables is still not well tested. The
other part of the @code{MERGE} code is quite well tested. other parts of the @code{MERGE} code are quite well tested.
@item FULLTEXT -- Beta @item FULLTEXT -- Beta
Text search seems to work, but is still not widely used. Text search seems to work, but is still not widely used.
@end table @end table
MySQL AB provides e-mail support for paying customers, but the MySQL AB provides high-quality support for paying customers, but the
MySQL mailing list usually provides answers to common questions. MySQL mailing list usually provides answers to common questions.
Bugs are usually fixed right away with a patch; for serious bugs, there is Bugs are usually fixed right away with a patch; for serious bugs, there is
almost always a new release. almost always a new release.
...@@ -1598,8 +1645,8 @@ FutureForum Web Discussion Software. ...@@ -1598,8 +1645,8 @@ FutureForum Web Discussion Software.
@table @asis @table @asis
@item @uref{http://www.supportwizard.com/} @item @uref{http://www.supportwizard.com/}
SupportWizard; Interactive helpdesk on the Web (This product includes a SupportWizard; Interactive helpdesk on the Web. This product includes a
licensed copy of MySQL.) licensed copy of MySQL.
@item @uref{http://www.sonork.com/} @item @uref{http://www.sonork.com/}
Sonork, Instant Messenger that is not only Internet oriented. It's Sonork, Instant Messenger that is not only Internet oriented. It's
...@@ -1664,7 +1711,7 @@ A free report writer in Java ...@@ -1664,7 +1711,7 @@ A free report writer in Java
@item @uref{http://www.javaframework.de} @item @uref{http://www.javaframework.de}
MySQLExport - Export of MySQL create statements and data in a lot of MySQLExport - Export of MySQL create statements and data in a lot of
different formats (SQL, HTML, CVS, text, ZIP, GZIP...) different formats (SQL, HTML, CVS, text, ZIP, GZIP...).
@item @uref{http://dlabs.4t2.com} @item @uref{http://dlabs.4t2.com}
M2D, a MySQL Administration client for Windows. M2D supports M2D, a MySQL Administration client for Windows. M2D supports
...@@ -1712,7 +1759,7 @@ SmartWorker is a platform for Web application development. ...@@ -1712,7 +1759,7 @@ SmartWorker is a platform for Web application development.
@item @uref{http://xsp.lentus.se/} @item @uref{http://xsp.lentus.se/}
XSP: e(X)tendible (S)erver (P)ages and is a HTML embedded tag language XSP: e(X)tendible (S)erver (P)ages and is a HTML embedded tag language
written in Java (previously known as XTAGS.) written in Java (previously known as XTAGS).
@cindex dbServ @cindex dbServ
@item @uref{http://www.dbServ.de/} @item @uref{http://www.dbServ.de/}
...@@ -2033,9 +2080,6 @@ Stopbit - A technology news site using MySQL and PHP. ...@@ -2033,9 +2080,6 @@ Stopbit - A technology news site using MySQL and PHP.
KDE based calendar manager - The calendar manager has both single user KDE based calendar manager - The calendar manager has both single user
(file based) and multi-user (MySQL database) support. (file based) and multi-user (MySQL database) support.
@item @uref{http://tim.desert.net/~tim/imger/}
Example of storing/retrieving images with MySQL and CGI.
@item @uref{http://www.penguinservices.com/scripts} @item @uref{http://www.penguinservices.com/scripts}
Online shopping cart system. Online shopping cart system.
...@@ -2112,7 +2156,7 @@ some guidelines as to how to use them. ...@@ -2112,7 +2156,7 @@ some guidelines as to how to use them.
@subsubsection The MySQL Mailing Lists @subsubsection The MySQL Mailing Lists
@cindex mailing lists @cindex mailing lists
@cindex email lists @cindex e-mail lists
To subscribe to the main MySQL mailing list, send a message to the To subscribe to the main MySQL mailing list, send a message to the
electronic mail address @email{mysql-subscribe@@lists.mysql.com}. electronic mail address @email{mysql-subscribe@@lists.mysql.com}.
...@@ -2242,15 +2286,15 @@ guarantee the quality on these. ...@@ -2242,15 +2286,15 @@ guarantee the quality on these.
@table @code @table @code
@item @email{mysql-france-subscribe@@yahoogroups.com} A French mailing list @item @email{mysql-france-subscribe@@yahoogroups.com} A French mailing list
@item @email{list@@tinc.net} A Korean mailing list @item @email{list@@tinc.net} A Korean mailing list
Email @code{subscribe mysql your@@email.address} to this list. Email @code{subscribe mysql your@@e-mail.address} to this list.
@item @email{mysql-de-request@@lists.4t2.com} A German mailing list @item @email{mysql-de-request@@lists.4t2.com} A German mailing list
Email @code{subscribe mysql-de your@@email.address} to this list. Email @code{subscribe mysql-de your@@e-mail.address} to this list.
You can find information about this mailing list at You can find information about this mailing list at
@uref{http://www.4t2.com/mysql}. @uref{http://www.4t2.com/mysql}.
@item @email{mysql-br-request@@listas.linkway.com.br} A Portugese mailing list @item @email{mysql-br-request@@listas.linkway.com.br} A Portugese mailing list
Email @code{subscribe mysql-br your@@email.address} to this list. Email @code{subscribe mysql-br your@@e-mail.address} to this list.
@item @email{mysql-alta@@elistas.net} A Spanish mailing list @item @email{mysql-alta@@elistas.net} A Spanish mailing list
Email @code{subscribe mysql your@@email.address} to this list. Email @code{subscribe mysql your@@e-mail.address} to this list.
@end table @end table
...@@ -2320,7 +2364,7 @@ missing, please include it with your message! Please read this section ...@@ -2320,7 +2364,7 @@ missing, please include it with your message! Please read this section
carefully and make sure that all the information described here is included carefully and make sure that all the information described here is included
in your report. in your report.
@cindex bug reports, email address @cindex bug reports, e-mail address
The normal place to report bugs and problems is The normal place to report bugs and problems is
@email{mysql@@lists.mysql.com}. If you can make a test case that clearly @email{mysql@@lists.mysql.com}. If you can make a test case that clearly
demonstrates the bug, you should post it to the @email{bugs@@lists.mysql.com} demonstrates the bug, you should post it to the @email{bugs@@lists.mysql.com}
...@@ -2619,38 +2663,133 @@ Many users don't read mail with a browser! ...@@ -2619,38 +2663,133 @@ Many users don't read mail with a browser!
@node Licensing and Support, Compatibility, MySQL Information Sources, Introduction @node Licensing and Support, Compatibility, MySQL Information Sources, Introduction
@section MySQL Licensing and Support @section MySQL Support and Licensing
@cindex licensing terms @cindex licensing terms
@cindex support terms @cindex support terms
@menu @menu
* Licensing policy:: MySQL licensing policy * Support:: Support offered by MySQL AB
* Copyright:: Copyrights used by MySQL * Copyright:: Copyrights used by MySQL
* Licensing policy:: MySQL licensing policy
* Licensing examples:: Example licensing situations * Licensing examples:: Example licensing situations
* Cost:: MySQL licensing and support costs * Payment information:: Payment information
* Support:: Types of commercial support
@end menu @end menu
This section describes MySQL support and licensing This section describes MySQL support and licensing arrangements:
arrangements:
@itemize @bullet @itemize @bullet
@item Support costs and benefits
(@pxref{Support})
@item The copyrights under which MySQL is distributed @item The copyrights under which MySQL is distributed
(@pxref{Copyright}) (@pxref{Copyright})
@item When and why you should license MySQL
(@pxref{Licensing policy})
@item Sample situations illustrating when a license is required @item Sample situations illustrating when a license is required
(@pxref{Licensing examples}) (@pxref{Licensing examples})
@item Support costs (@pxref{Cost}) and support benefits @item How to make payments
(@pxref{Support}) (@pxref{Payment information})
@item Commercial licensing costs
@end itemize @end itemize
@node Licensing policy, Copyright, Licensing and Support, Licensing and Support @node Support, Copyright, Licensing and Support, Licensing and Support
@subsection Support offered by MySQL AB
@cindex support, types
@cindex types, of support
@cindex commercial support, types
@cindex costs, licensing and support
@cindex licensing costs
@cindex support costs
@cindex prices, licensing and support
MySQL AB offers several support options. A description
of what each level of support includes is given at
@uref{http://www.mysql.com/support/arrangements/types.html}. As
a support customer, you have access to the people who develop the
MySQL source code. The standard is high for both quality and
speed.
Our current support and license prices are available from our
web site. For options and pricing, and to order support and
licenses, please see
@uref{https://order.mysql.com/}.
A license is not a support agreement and includes very minimal
support. This means that we try to answer any questions relevant
to installation. If the answer is in the documentation, we will
direct you to the appropriate section. If you have not purchased
a license or support, we will simply direct you to the freely
available public resources.
We consider reliability to be crucial to MySQL's success, and
fixing bugs is important to us. If you discover a bug that can
be repeated reliably, we will fix it in any case. But if you pay
for support we will also notify you about the fix status instead
of just fixing it in a later release.
@node Copyright, Licensing policy, Support, Licensing and Support
@subsection Copyrights Used by MySQL
@cindex copyrights
@menu
* Copyright changes:: Possible future copyright changes
@end menu
There are several different copyrights on the MySQL distribution:
@enumerate
@item
The MySQL-specific source needed to build the @code{mysqlclient}
library is licensed under the @code{LGPL} and the programs in the
@file{client} directory are under the @code{GPL}. Each file states at
the beginning which license it is under.
@item The client library, and the GNU @code{getopt} library, are covered
by the ``GNU LIBRARY GENERAL PUBLIC LICENSE.'' @xref{LGPL license}.
@item Some parts of the source (the @code{regexp} library) are covered
by a Berkeley-style copyright.
@item
All the source in the server, and the GNU @code{readline} library,
are covered by the ``GNU GENERAL PUBLIC LICENSE.'' @xref{GPL license}.
This is also available as the file @file{COPYING} in the distributions.
@end enumerate
One goal is that the SQL client library should be free enough that it is
possible to add MySQL support into commercial products
without a license. For this reason, we chose the LGPL license for the
client code.
@cindex licensing, free
@cindex free licensing
This means that you can use MySQL for free with any program that uses
any of the free software licenses. MySQL is also free for any end
user for his own or company usage.
However, if you use MySQL for something important to you, you may
want to help secure its development by purchasing licenses or a support
contract. @xref{Support}.
@node Copyright changes, , Copyright, Copyright
@subsubsection Copyright Changes
Version 3.22 of MySQL is still using a more strict license.
See the documentation for that version for more information.
@node Licensing policy, Licensing examples, Copyright, Licensing and Support
@subsection MySQL Licensing Policy @subsection MySQL Licensing Policy
@cindex licensing policy @cindex licensing policy
...@@ -2661,12 +2800,6 @@ arrangements: ...@@ -2661,12 +2800,6 @@ arrangements:
The formal terms of the GPL license can be found at @ref{GPL license}. The formal terms of the GPL license can be found at @ref{GPL license}.
Basically, our licensing policy and interpretation of the GPL is as follows: Basically, our licensing policy and interpretation of the GPL is as follows:
Note that older versions of MySQL are still using a more
@uref{http://www.mysql.com/support/arrangements/mypl.html, strict license}.
See the documentation for that version for more information. If you need a
commercial MySQL license, because the GPL license doesn't suit your
application, you can buy one at @uref{https://order.mysql.com/}.
For normal internal use, MySQL costs nothing. You do not have For normal internal use, MySQL costs nothing. You do not have
to pay us if you do not want to. to pay us if you do not want to.
...@@ -2694,23 +2827,24 @@ source code for your copy of the MySQL server, as defined in ...@@ -2694,23 +2827,24 @@ source code for your copy of the MySQL server, as defined in
the GPL license. the GPL license.
@end itemize @end itemize
A license is @strong{NOT} required if: A license is @strong{not} required if:
@itemize @minus @itemize @minus
@item @item
You do not need a license to include the client code in commercial You include the MySQL client code in a commercial
programs. The client part of MySQL licensed with the program. The client part of MySQL is licensed under the
LGPL @code{GNU Library General Public License}. The @code{mysql} command-line LGPL @code{GNU Library General Public License}. The @code{mysql} command-line
client includes code from the @code{readline} library that is under client does include code from the @code{readline} library that is under
the @code{GPL}. the @code{GPL}, however.
@end itemize
@item
If your use of MySQL does not require a license, but you If your use of MySQL does not require a license, but you
like MySQL and want to encourage further development, you are like MySQL and want to encourage further development, you are
certainly welcome to purchase a license or MySQL support anyway. certainly welcome to purchase a license or MySQL support anyway.
@xref{Support}.
@item
If you use MySQL in a commercial context such that you profit by If you use MySQL in a commercial context such that you profit by
its use, we ask that you further the development of MySQL by its use, we ask that you further the development of MySQL by
purchasing some level of support. We feel that if MySQL helps purchasing some level of support. We feel that if MySQL helps
...@@ -2718,14 +2852,18 @@ your business, it is reasonable to ask that you help MySQL. ...@@ -2718,14 +2852,18 @@ your business, it is reasonable to ask that you help MySQL.
(Otherwise, if you ask us support questions, you are not only using for (Otherwise, if you ask us support questions, you are not only using for
free something into which we've put a lot a work, you're asking us to free something into which we've put a lot a work, you're asking us to
provide free support, too.) provide free support, too.)
@end itemize
Note that older versions of MySQL are still using a more
@uref{http://www.mysql.com/support/arrangements/mypl.html, strict license}.
See the documentation for the specific version for more
information.
For circumstances under which a MySQL license is required, you For circumstances under which a MySQL license is required, you
need a license per machine that runs the @code{mysqld} server. However, need a license per machine that runs the @code{mysqld} server. However,
a multiple-CPU machine counts as a single machine, and there is no a multiple-CPU machine counts as a single machine, and there is no
restriction on the number of MySQL servers that run on one restriction on the number of MySQL servers that run on one
machine, or on the number of clients concurrently connected to a server machine, or on the number of clients concurrently connected to a server
running on that machine! running on that machine.
If you have any questions as to whether or not a license is required for If you have any questions as to whether or not a license is required for
your particular use of MySQL, please read this again and then your particular use of MySQL, please read this again and then
...@@ -2737,61 +2875,7 @@ is to use the license form on MySQL's secure server at ...@@ -2737,61 +2875,7 @@ is to use the license form on MySQL's secure server at
discussed in @ref{Payment information}. discussed in @ref{Payment information}.
@node Copyright, Licensing examples, Licensing policy, Licensing and Support @node Licensing examples, Payment information, Licensing policy, Licensing and Support
@subsection Copyrights Used by MySQL
@cindex copyrights
@menu
* Copyright changes:: Possible future copyright changes
@end menu
There are several different copyrights on the MySQL distribution:
@enumerate
@item
The MySQL-specific source needed to build the
@code{mysqlclient} library is licensed under the @code{LGPL} and
programs in the @file{client} directory is GPL. Each file has a header
that shows which copyright is used for that file.
@item The client library and the (GNU @code{getopt}) library are covered
by the ``GNU LIBRARY GENERAL PUBLIC LICENSE.'' @xref{LGPL license}.
@item Some parts of the source (the @code{regexp} library) are covered
by a Berkeley-style copyright.
@item
All the source in the server and the (GNU @code{readline}) library
is covered by the ``GNU GENERAL PUBLIC LICENSE.'' @xref{GPL license}.
This is also available as the file @file{COPYING} in the distributions.
@end enumerate
One goal is that the SQL client library should be free enough that it is
possible to add MySQL support into commercial products
without a license. For this reason, we chose the LGPL license for the
client code.
@cindex licensing, free
@cindex free licensing
This means that you can use MySQL for free with any program that uses
any of the free software licenses. MySQL is also free for any end
user for his own or company usage.
However, if you use MySQL for something important to you, you may
want to help secure its development by purchasing licenses or a support
contract. @xref{Support}.
@node Copyright changes, , Copyright, Copyright
@subsubsection Copyright Changes
Version 3.22 of MySQL is still using a more strict license.
See the documentation for that version for more information.
@node Licensing examples, Cost, Copyright, Licensing and Support
@subsection Example Licensing Situations @subsection Example Licensing Situations
@menu @menu
...@@ -2876,12 +2960,12 @@ will be able to solve the problem for them (in some cases with the help ...@@ -2876,12 +2960,12 @@ will be able to solve the problem for them (in some cases with the help
from the MySQL development team). from the MySQL development team).
All ISPs that want to keep themselves up-to-date should subscribe All ISPs that want to keep themselves up-to-date should subscribe
to our @code{announce} mailing list so that they can be aware of fatal issues to our @code{announce} mailing list so that they can be aware of critical issues
that may be relevant for their MySQL installations. that may be relevant for their MySQL installations.
Note that if the ISP doesn't have a license for MySQL, Note that if the ISP doesn't have a license for MySQL,
it should give its customers at least read access to the source of it should give its customers at least read access to the source of
the MySQL installation so that its customer can verify that the MySQL installation so that its customers can verify that
it is patched correctly. it is patched correctly.
...@@ -2891,7 +2975,7 @@ it is patched correctly. ...@@ -2891,7 +2975,7 @@ it is patched correctly.
@cindex web server, running @cindex web server, running
@cindex running, a web server @cindex running, a web server
If you use MySQL in conjunction with a Web server on Unix, you If you use MySQL in conjunction with a Web server, you
don't have to pay for a license. don't have to pay for a license.
This is true even if you run a commercial Web server that uses This is true even if you run a commercial Web server that uses
...@@ -2900,97 +2984,22 @@ version yourself. However, in this case we would like you to purchase ...@@ -2900,97 +2984,22 @@ version yourself. However, in this case we would like you to purchase
MySQL support, because MySQL is helping your enterprise. MySQL support, because MySQL is helping your enterprise.
@node Cost, Support, Licensing examples, Licensing and Support @node Payment information, , Licensing examples, Licensing and Support
@subsection MySQL Licensing and Support Costs @subsection Payment information
@cindex costs, licensing and support
@cindex licensing costs
@cindex support costs
@cindex prices, licensing and support
@menu
* Payment information:: Payment information
* Contact information:: Contact information
@end menu
Our current license prices are shown below. To make a purchase, please visit
@uref{https://order.mysql.com/}.
If you pay by credit card, the currency is EURO (European Union Euro) so the
prices will differ slightly.
@multitable @columnfractions .3 .3 .3
@item @strong{Number of licenses} @tab @strong{Per copy}
@item 1-9 @tab 230 EURO
@item 10-24 @tab 138 EURO
@item 25-49 @tab 117 EURO
@item 50-99 @tab 102 EURO
@item 100-249 @tab 91 EURO
@item 250-499 @tab 76 EURO
@item 500-999 @tab 66 EURO
@end multitable
For high volume (OEM) purchases, please contact
@email{sales@@mysql.com}.
For OEM purchases, you must act as the middle-man for eventual problems
or extension requests from your users. We also require that OEM
customers have at least an extended e-mail support contract. Note that
OEM licenses only apply for products where the user doesn't have direct
access to the MySQL server (embedded system). In other words,
the MySQL server should only be used with the application
that was supplied you.
If you have a low-margin, high-volume product, you can always talk to us
about other terms (for example, a percent of the sale price). If you do,
please be informative about your product, pricing, market, and any other
information that may be relevant.
A full-price license is not a support agreement and includes very minimal
support. This means that we try to answer any relevant questions. If the
answer is in the documentation, we will direct you to the appropriate
section. If you have not purchased a license or support, we probably will
not answer at all.
If you discover what we consider a real bug, we are likely to fix it in
any case. But if you pay for support we will notify you about the fix
status instead of just fixing it in a later release.
More comprehensive support is sold separately. Descriptions of what each
level of support includes are given in @ref{Support}. Costs for the various
types of commercial support are shown below. Support level prices are in
EURO (European Union Euro). One EURO is about 1.06 USD.
@multitable @columnfractions .5 .5
@item @strong{Type of support} @tab @strong{Cost per year}
@item Basic e-mail support. @xref{Basic email support}. @tab EURO 200
@item Extended e-mail support @xref{Extended email support}. @tab EURO 1000
@item Login support @xref{Login support}. @tab EURO 2000
@item Extended login support @xref{Extended login support}. @tab EURO 5000
@item Telephone support @xref{Telephone support}. @tab EURO 12000
@end multitable
You may upgrade from any lower level of support to a higher level of
support for the difference in price between the two support levels.
We do also provide telephone support (mostly emergency support but also
24/7 support). This support option doesn't however have a fixed price
but is negotiated for case to case. If you are interested in this option
you can email @email{sales@@mysql.com} and tell us about your needs.
Note that as our sales staff is very busy, it may take some time until
your request is handled. Our support staff does however always answer
promptly to support questions!
@cindex payment information
@node Payment information, Contact information, Cost, Cost The most efficient way to pay for support and licenses is through
@subsubsection Payment information @uref{https://order.mysql.com/, MySQL AB's secure license form}.
Please check this site for the latest support options and
pricing details.
@cindex payment information Also, we can take SWIFT payments, checks, or credit cards.
Currently we can take SWIFT payments, checks, or credit cards. @itemize @bullet
Payment should be made to: @item
SWIFT payments should be made to:
@example @example
Postgirot Bank AB Postgirot Bank AB
...@@ -3006,9 +3015,10 @@ Account number: 96 77 06 - 3 ...@@ -3006,9 +3015,10 @@ Account number: 96 77 06 - 3
Specify: license and/or support and your name and e-mail address. Specify: license and/or support and your name and e-mail address.
In Europe and Japan you can use EuroGiro (that should be less expensive) to the In Europe and Japan you can use EuroGiro (which should be less
same account. expensive) to the same account.
@item
If you want to pay by check, make it payable to ``MySQL Finland AB'' and If you want to pay by check, make it payable to ``MySQL Finland AB'' and
mail it to the address below: mail it to the address below:
...@@ -3018,344 +3028,21 @@ BOX 6434, Torsgatan 21 ...@@ -3018,344 +3028,21 @@ BOX 6434, Torsgatan 21
11382 STOCKHOLM, SWEDEN 11382 STOCKHOLM, SWEDEN
@end example @end example
If you want to pay by credit card over the Internet, you can use @item
@uref{https://order.mysql.com/, MySQL AB's secure license form}.
You can also print a copy of the license form, fill it in, and send it by fax You can also print a copy of the license form, fill it in, and send it by fax
to: to:
+46-8-729 69 05 +46-8-729 69 05
@item
If you want us to bill you, you can use the license form and write ``bill If you want us to bill you, you can use the license form and write ``bill
us'' in the comment field. You can also mail a message to us'' in the comment field. You can also mail a message to
@email{sales@@mysql.com} (@strong{not} @code{mysql@@lists.mysql.com}!) @email{sales@@mysql.com} (@strong{not} @code{mysql@@lists.mysql.com}!)
with your company information and ask us to bill you. with your company information and ask us to bill you.
@node Contact information, , Payment information, Cost
@subsubsection Contact Information
@cindex contact information
@cindex licensing, contact information
@cindex advertising, contact information
@cindex employment, contact information
@cindex partnering with MySQL
@cindex employment with MySQL
@cindex jobs at MySQL
For commercial licensing, please contact the MySQL licensing
team. The much preferred method is by e-mail to
@email{licensing@@mysql.com}. Fax is also possible but handling of
these may take much longer (Fax +46-8-729 69 05).
If you represent a business that is interested in partnering with
MySQL, please send e-mail to @email{partner@@mysql.com}.
For timely, precise answers to technical questions about MySQL
you should @uref{https://order.mysql.com/, order} one of our
@uref{http://www.mysql.com/support/arrangements/types.html, support contracts}.
MySQL support is provided by the MySQL developers so the
standard is extremely high.
If you are interested in placing a banner advertisement on our Web site,
please send e-mail to @email{advertising@@mysql.com}.
If you are interested in any of the jobs listed in our
@uref{http://www.mysql.com/development/jobs/, jobs} section, please send e-mail
to @email{jobs@@mysql.com}.
For general discussion amongst our many users, please direct your attention to
the appropriate @uref{http://www.mysql.com/documentation/lists.html, mailing
list}.
For general information inquires, please send e-mail to
@email{info@@mysql.com}.
For questions or comments about the workings or content of the Web site,
please send e-mail to @email{webmaster@@mysql.com}.
@node Support, , Cost, Licensing and Support
@subsection Types of Commercial Support
@cindex support, types
@cindex types, of support
@cindex commercial support, types
@menu
* Basic email support:: Basic email support
* Extended email support:: Extended email support
* Login support:: Login support
* Extended login support:: Extended login support
* Telephone support:: Telephone support
* Table handler support:: Support for other table handlers
@end menu
The following is true of all support options:
@itemize @bullet
@item
The support is per year.
@item
We will fix, or provide a reasonable workaround for any repeatable bug.
@item
We will give a reasonable effort to find and fix any other MySQL related bug.
@item
The higher level of support contract the more effort we will put into finding
a solution to your problems.
@item
The following is true for all support contracts except Basic email support:
For non-bug related things, like helping you optimize your queries or
your system, extending MySQL with new functionality, etc., we charge 200
EURO/hour, which is deducted from your support contract. In other words,
if you have login support (2000 EURO), you can expect us to work up to
10 hours to help you with things like this.
@end itemize
@node Basic email support, Extended email support, Support, Support
@subsubsection Basic E-mail Support
@cindex email, technical support
@cindex technical support, by email
Basic e-mail support is a very inexpensive support option and should be
thought of more as a way to support our development of MySQL
than as a real support option. We at MySQL do give a lot of free
support in all the different MySQL lists, and the money we get from
basic e-mail support is largely used to make this possible.
At this support level, the MySQL mailing lists are the preferred
means of communication. Questions normally should be mailed to the primary
mailing list (@email{mysql@@lists.mysql.com}) or one of the other regular
lists (for example, @email{win32@@lists.mysql.com} for Windows-related
MySQL questions), as someone else already may have experienced and
solved the problem you have. @xref{Asking questions}.
However, by purchasing basic e-mail support, you also have access to the
support address @email{mysql-support@@mysql.com}, which is not available
as part of the minimal support that you get by purchasing a MySQL
license. This means that for especially critical questions, you can
cross-post your message to @email{mysql-support@@mysql.com}. (If the
message contains sensitive data, you should post only to
@email{mysql-support@@mysql.com}.)
@strong{REMEMBER!} to ALWAYS include your registration number and expiration
date when you send a message to @email{mysql-support@@mysql.com}.
Note that if you have encountered a critical, repeatable bug, and follow
the rules outlined in the manual section of how to report bugs and send
it to @email{bugs@@lists.mysql.com}, we promise to try to fix this as
soon as possible, regardless of your support level! @xref{Bug reports}.
Basic e-mail support includes the following types of service:
@itemize @bullet
@item
If your question is already answered in the manual, we will inform you of the
correct section in which you can find the answer. If the answer is not in
the manual, we will point you in the right direction to solve your problem.
@item
We guarantee a timely answer for your e-mail messages. We can't guarantee
that we can solve any problem, but at least you will receive an answer if we
can contact you by e-mail.
@item
We will help with unexpected problems when you install MySQL from a
binary distribution on supported platforms. This level of support does not
cover installing MySQL from a source distribution. Supported
platforms are those for which MySQL is known to work.
@xref{Which OS}.
@item
We will help you with bugs and missing features. Any bugs that are found are
fixed for the next MySQL release. If the bug is critical for
you, we will mail you a patch for it as soon the bug is fixed. Critical
bugs always have the highest priority for us, and we ensure that they are
fixed as soon as possible.
@item
Your suggestions for the further development of MySQL will be
taken into consideration. By taking email support you have already
helped the further development of MySQL. If you want to have
more input, upgrade to a higher level of support.
@item
If you want us to help optimize your system, you must upgrade to a
higher level of support.
@end itemize
@node Extended email support, Login support, Basic email support, Support
@subsubsection Extended E-mail Support
@cindex extended email support
Extended e-mail support includes everything in basic e-mail support with
these additions:
@itemize @bullet
@item
Your e-mail will be dealt with before mail from basic e-mail support users and
non-registered users.
@item
Your suggestions for the further development of MySQL will
receive strong consideration. Simple extensions that suit the basic
goals of MySQL are implemented in a matter of days. By taking
extended e-mail support you have already helped the further development
of MySQL.
@item
Typical situations that are covered by extended e-mail support are:
@itemize @minus
@item
We will answer and (within reason) solve questions that relate to possible
bugs in MySQL. As soon as the bug is found and corrected, we
will mail a patch for it.
@item
We will help with unexpected problems when you install MySQL from a
source or binary distribution on supported platforms.
@item
We will answer questions about missing features and offer hints how to work
around them.
@item
We will provide hints on optimizing @code{mysqld} for your situation.
@end itemize
@item
You are allowed to influence the priority of items on the MySQL
TODO List. @xref{TODO}. This will ensure that the features you really need
will be implemented sooner than they might be otherwise.
@end itemize
@node Login support, Extended login support, Extended email support, Support
@subsubsection Login Support
@cindex login support
Login support includes everything in extended e-mail support with
these additions:
@itemize @bullet
@item
Your e-mail will be dealt with even before e-mail from extended e-mail
support users.
@item
Your suggestions for the further development of MySQL will
be taken into very high consideration. Realistic extensions that can be
implemented in a couple of hours and that suit the basic goals of
MySQL will be implemented as soon as possible.
@item
If you have a very specific problem, we can try to log in on your system
to solve the problem ``in place.''
@item
Like any database vendor, we can't guarantee that we can rescue any data from
crashed tables, but if the worst happens, we will help you rescue as much as
possible. MySQL has proven itself very reliable, but anything is
possible due to circumstances beyond our control (for example, if your system
crashes or someone kills the server by executing a @code{kill -9} command).
@item
We will provide hints on optimizing your system and your queries.
@item
You are allowed to call a MySQL developer (in moderation) and
discuss your MySQL-related problems. This option is however
only to be used as a last result during an emergency after we have
failed to grasp the total problem with email. To make efficient
use of our time we need to first get all facts about the problem,
before talking on phone, to be able to work as efficiently as possible on
solving the problem.
@end itemize @end itemize
@node Extended login support, Telephone support, Login support, Support
@subsubsection Extended Login Support
Extended login support includes everything in login support with these
additions:
@itemize @bullet
@item
Your e-mail has the highest possible priority.
@item
We will actively examine your system and help you optimize it and your
queries. We may also optimize and/or extend MySQL to better
suit your needs.
@item
You may also request special extensions just for you. For example:
@example
mysql> select MY_FUNC(col1,col2) from table;
@end example
@item
We will provide a binary distribution of all important MySQL
releases for your system, as long as we can get an account on a
similar system. In the worst case, we may require access to your system
to be able to create a binary distribution.
@item
If you can provide accommodations and pay for traveler fares, you can
even get a MySQL developer to visit you and offer you help with
your troubles. Extended login support entitles you to one personal
encounter per year, but we are always very flexible towards our
customers! If the visit takes 16 hours or more, the first 8 hours is
without charge. For the hours above 8 hours, you will be charged with a
rate that is at least 20 % less than our standard rates.
@end itemize
@node Telephone support, Table handler support, Extended login support, Support
@subsubsection Telephone Support
Telephone support includes everything in extended login support with
these additions:
@itemize @bullet
@item
We will provide you with a dynamic web page showing the current list of
@code{MySQL} developers that you can phone when you have a critical
problem.
@item
For non critical problem, you can request a MySQL developer to
phone back within 48 hours to discuss @code{MySQL} related issues.
@end itemize
@node Table handler support, , Telephone support, Support
@subsubsection Support for other table handlers
@cindex support, BDB Tables
@cindex support, InnoDB Tables
To get support for @code{BDB} tables, @code{InnoDB} tables you have
to pay an additional 30% on the standard support price for each of
the table handlers you would like to have support for.
We at @code{MySQL AB} will help you create a proper bug report for the
table handler and submit it to the developers for the specific table
handler. We will also do our best to ensure that you will get a timely
answer or solution from the developers of the table handler.
Even if we are quite confident that we can solve most problems within a
timely manner, we can't guarantee a quick solution for any problems you
can get with the different table handlers. We will however do our best
to help you get the problem solved.
@node Compatibility, Comparisons, Licensing and Support, Introduction @node Compatibility, Comparisons, Licensing and Support, Introduction
@section How Standards-compatible Is MySQL? @section How Standards-compatible Is MySQL?
...@@ -4346,7 +4033,7 @@ characters in database, table and column names. ...@@ -4346,7 +4033,7 @@ characters in database, table and column names.
@item @item
@code{DELETE FROM merge_table} used without a @code{WHERE} @code{DELETE FROM merge_table} used without a @code{WHERE}
will only clear the mapping for the table, not delete everything in the will only clear the mapping for the table, not delete everything in the
mapped tables mapped tables.
@item @item
You cannot build in another directory when using You cannot build in another directory when using
...@@ -6648,7 +6335,7 @@ Please report bad or out-of-date mirrors to @email{webmaster@@mysql.com}. ...@@ -6648,7 +6335,7 @@ Please report bad or out-of-date mirrors to @email{webmaster@@mysql.com}.
@c @item @c @item
@c EMAIL: melo@co.telenet.pt (Pedro Melo) @c EMAIL: melo@co.telenet.pt (Pedro Melo)
@c Temp out of service (email from Pedro) @c Temp out of service (e-mail from Pedro)
@c @image{Flags/portugal} Portugal [IP] @ @c @image{Flags/portugal} Portugal [IP] @
@c @uref{http://mysql.ip.pt, WWW} @c @uref{http://mysql.ip.pt, WWW}
...@@ -8333,7 +8020,7 @@ You can examine the change history for the tree with all the diffs by using ...@@ -8333,7 +8020,7 @@ You can examine the change history for the tree with all the diffs by using
@code{bk sccstool}. If you see some funny diffs or code that you have a @code{bk sccstool}. If you see some funny diffs or code that you have a
question about, do not hesitate to send e-mail to question about, do not hesitate to send e-mail to
@email{internals@@lists.mysql.com}. Also, if you think you have a better idea @email{internals@@lists.mysql.com}. Also, if you think you have a better idea
on how to do something, send an email to the same address with a patch. on how to do something, send an e-mail to the same address with a patch.
@code{bk diffs} will produce a patch for you after you have made changes @code{bk diffs} will produce a patch for you after you have made changes
to the source. If you do not have the time to code your idea, just send to the source. If you do not have the time to code your idea, just send
a description. a description.
...@@ -9125,7 +8812,7 @@ correctly, check the log file to see if you can find out why. Log files ...@@ -9125,7 +8812,7 @@ correctly, check the log file to see if you can find out why. Log files
are located in the data directory (typically are located in the data directory (typically
@file{/usr/local/mysql/data} for a binary distribution, @file{/usr/local/mysql/data} for a binary distribution,
@file{/usr/local/var} for a source distribution, @file{/usr/local/var} for a source distribution,
@file{\mysql\data\mysql.err} on Windows.) Look in the data directory for @file{\mysql\data\mysql.err} on Windows). Look in the data directory for
files with names of the form @file{host_name.err} and files with names of the form @file{host_name.err} and
@file{host_name.log} where @code{host_name} is the name of your server @file{host_name.log} where @code{host_name} is the name of your server
host. Then check the last few lines of these files: host. Then check the last few lines of these files:
...@@ -11630,7 +11317,7 @@ the IBM C compiler). ...@@ -11630,7 +11317,7 @@ the IBM C compiler).
If you are using @code{gcc} or @code{egcs} to compile MySQL, you If you are using @code{gcc} or @code{egcs} to compile MySQL, you
@strong{MUST} use the @code{-fno-exceptions} flag, as the exception @strong{MUST} use the @code{-fno-exceptions} flag, as the exception
handling in @code{gcc}/@code{egcs} is not thread safe! (This is tested with handling in @code{gcc}/@code{egcs} is not thread safe! (This is tested with
@code{egcs} 1.1.). There are also some known problems with IBM's assembler, @code{egcs} 1.1.) There are also some known problems with IBM's assembler,
which may cause it to generate bad code when used with gcc. which may cause it to generate bad code when used with gcc.
We recommend the following @code{configure} line with @code{egcs} and We recommend the following @code{configure} line with @code{egcs} and
...@@ -11897,7 +11584,7 @@ Please submit a full bug report. ...@@ -11897,7 +11584,7 @@ Please submit a full bug report.
To fix this you should change to the @code{sql} directory and do a ``cut To fix this you should change to the @code{sql} directory and do a ``cut
and paste'' of the last @code{gcc} line, but change @code{-O3} to and paste'' of the last @code{gcc} line, but change @code{-O3} to
@code{-O0} (or add @code{-O0} immediately after @code{gcc} if you don't @code{-O0} (or add @code{-O0} immediately after @code{gcc} if you don't
have any @code{-O} option on your compile line.) After this is done you have any @code{-O} option on your compile line). After this is done you
can just change back to the top-level directly and run @code{make} can just change back to the top-level directly and run @code{make}
again. again.
...@@ -14248,7 +13935,7 @@ You don't need foreign keys to join 2 tables. ...@@ -14248,7 +13935,7 @@ You don't need foreign keys to join 2 tables.
The only thing MySQL doesn't do is @code{CHECK} to make sure that The only thing MySQL doesn't do is @code{CHECK} to make sure that
the keys you use really exist in the table(s) you're referencing and it the keys you use really exist in the table(s) you're referencing and it
doesn't automatically delete rows from table with a foreign key doesn't automatically delete rows from a table with a foreign key
definition. If you use your keys like normal, it'll work just fine: definition. If you use your keys like normal, it'll work just fine:
...@@ -14330,8 +14017,8 @@ SELECT s.* FROM persons p, shirts s ...@@ -14330,8 +14017,8 @@ SELECT s.* FROM persons p, shirts s
@cindex keys, searching on two @cindex keys, searching on two
MySQL doesn't yet optimize when you search on two different MySQL doesn't yet optimize when you search on two different
keys combined with @code{OR} (Searching on one key with different @code{OR} keys combined with @code{OR} (searching on one key with different @code{OR}
parts is optimized quite good): parts is optimized quite well):
@example @example
SELECT field1_index, field2_index FROM test_table WHERE field1_index = '1' SELECT field1_index, field2_index FROM test_table WHERE field1_index = '1'
...@@ -14340,7 +14027,7 @@ OR field2_index = '1' ...@@ -14340,7 +14027,7 @@ OR field2_index = '1'
The reason is that we haven't yet had time to come up with an efficient The reason is that we haven't yet had time to come up with an efficient
way to handle this in the general case. (The @code{AND} handling is, way to handle this in the general case. (The @code{AND} handling is,
in comparison, now completely general and works very well). in comparison, now completely general and works very well.)
For the moment you can solve this very efficiently by using a For the moment you can solve this very efficiently by using a
@code{TEMPORARY} table. This type of optimization is also very good if @code{TEMPORARY} table. This type of optimization is also very good if
...@@ -14356,7 +14043,7 @@ SELECT * from tmp; ...@@ -14356,7 +14043,7 @@ SELECT * from tmp;
DROP TABLE tmp; DROP TABLE tmp;
@end example @end example
The above way to solve this query is in effect an @code{UNION} of two queries. The above way to solve this query is in effect a @code{UNION} of two queries.
@node Calculating days, , Searching on two keys, Examples @node Calculating days, , Searching on two keys, Examples
...@@ -14868,7 +14555,7 @@ also set this explicitely to @code{""} if you want to disable this ...@@ -14868,7 +14555,7 @@ also set this explicitely to @code{""} if you want to disable this
option. If this option is used, @code{mysqld} will on open check if the option. If this option is used, @code{mysqld} will on open check if the
table is marked as crashed or if if the table wasn't closed properly. table is marked as crashed or if if the table wasn't closed properly.
(The last option only works if you are running with (The last option only works if you are running with
@code{--skip-locking}). If this is the case @code{mysqld} will run @code{--skip-locking}.) If this is the case @code{mysqld} will run
check on the table. If the table was corrupted, @code{mysqld} will check on the table. If the table was corrupted, @code{mysqld} will
attempt to repair it. attempt to repair it.
...@@ -14926,7 +14613,7 @@ command, if the user doesn't have @code{INSERT} privilege to the ...@@ -14926,7 +14613,7 @@ command, if the user doesn't have @code{INSERT} privilege to the
@item --skip-concurrent-insert @item --skip-concurrent-insert
Turn off the ability to select and insert at the same time on @code{MyISAM} Turn off the ability to select and insert at the same time on @code{MyISAM}
tables. (This is only to be used if you think you have found a bug in this tables. (This is only to be used if you think you have found a bug in this
feature). feature.)
@item --skip-delay-key-write @item --skip-delay-key-write
Ignore the @code{delay_key_write} option for all tables. Ignore the @code{delay_key_write} option for all tables.
...@@ -15601,7 +15288,7 @@ shell> tcpdump -l -i eth0 -w - src or dst port 3306 | strings ...@@ -15601,7 +15288,7 @@ shell> tcpdump -l -i eth0 -w - src or dst port 3306 | strings
@end example @end example
(This works under Linux and should work with small modifications under (This works under Linux and should work with small modifications under
other systems). Warning: If you do not see data this doesn't always other systems.) Warning: If you do not see data this doesn't always
actually mean that it is encrypted. If you need high security, you should actually mean that it is encrypted. If you need high security, you should
consult with a security expert. consult with a security expert.
@end itemize @end itemize
...@@ -15679,8 +15366,8 @@ For more details, see @ref{Changing MySQL user, , Changing MySQL ...@@ -15679,8 +15366,8 @@ For more details, see @ref{Changing MySQL user, , Changing MySQL
user}. user}.
@item @item
Don't support symlinks to tables (This can be disabled with the Don't support symlinks to tables (this can be disabled with the
@code{--skip-symlink} option. This is especially important if you run @code{--skip-symlink} option). This is especially important if you run
@code{mysqld} as root as anyone that has write access to the mysqld data @code{mysqld} as root as anyone that has write access to the mysqld data
directories could then delete any file in the system! directories could then delete any file in the system!
@xref{Symbolic links to tables}. @xref{Symbolic links to tables}.
...@@ -16126,7 +15813,7 @@ currently executing queries, including queries that set or change passwords. ...@@ -16126,7 +15813,7 @@ currently executing queries, including queries that set or change passwords.
Privileges on the @code{mysql} database can be used to change passwords Privileges on the @code{mysql} database can be used to change passwords
and other access privilege information. (Passwords are stored and other access privilege information. (Passwords are stored
encrypted, so a malicious user cannot simply read them to know the plain encrypted, so a malicious user cannot simply read them to know the plain
text password). If they can access the @code{mysql.user} password text password.) If they can access the @code{mysql.user} password
column, they can use it to log into the MySQL server column, they can use it to log into the MySQL server
for the given user. (With sufficient privileges, the same user can for the given user. (With sufficient privileges, the same user can
replace a password with a different one.) replace a password with a different one.)
...@@ -16322,7 +16009,7 @@ MySQL does not store passwords in plaintext form for anyone to ...@@ -16322,7 +16009,7 @@ MySQL does not store passwords in plaintext form for anyone to
see. Rather, the password supplied by a user who is attempting to see. Rather, the password supplied by a user who is attempting to
connect is encrypted (using the @code{PASSWORD()} function). The connect is encrypted (using the @code{PASSWORD()} function). The
encrypted password is then used when the client/server is checking if encrypted password is then used when the client/server is checking if
the password is correct (This is done without the encrypted password the password is correct. (This is done without the encrypted password
ever traveling over the connection.) Note that from MySQL's ever traveling over the connection.) Note that from MySQL's
point of view the encrypted password is the REAL password, so you should point of view the encrypted password is the REAL password, so you should
not give anyone access to it! In particular, don't give normal users not give anyone access to it! In particular, don't give normal users
...@@ -17969,8 +17656,8 @@ you executed @code{mysqldump}. ...@@ -17969,8 +17656,8 @@ you executed @code{mysqldump}.
If you have to restore something, try to recover your tables using If you have to restore something, try to recover your tables using
@code{REPAIR TABLE} or @code{myisamchk -r} first. That should work in @code{REPAIR TABLE} or @code{myisamchk -r} first. That should work in
99.9% of all cases. If @code{myisamchk} fails, try the following 99.9% of all cases. If @code{myisamchk} fails, try the following
procedure: (This will only work if you have started MySQL with procedure (this will only work if you have started MySQL with
@code{--log-update}. @xref{Update log}.): @code{--log-update}, @pxref{Update log}):
@enumerate @enumerate
@item @item
...@@ -18155,18 +17842,18 @@ the indexes and not in the data part. All of the above check types ...@@ -18155,18 +17842,18 @@ the indexes and not in the data part. All of the above check types
checks the indexes throughly and should thus find most errors. checks the indexes throughly and should thus find most errors.
If you just want to check a table that you assume is ok, you should use If you just want to check a table that you assume is ok, you should use
no check options or the @code{QUICK} option. The later should be used no check options or the @code{QUICK} option. The latter should be used
when you are in a hurry and can take the very small risk that when you are in a hurry and can take the very small risk that
@code{QUICK} didn't find an error in the data file (In most cases @code{QUICK} didn't find an error in the data file. (In most cases
MySQL should find, under normal usage, any error in the data MySQL should find, under normal usage, any error in the data
file. If this happens then the table will be marked as 'corrupted', file. If this happens then the table will be marked as 'corrupted',
in which case the table can't be used until it's repaired). in which case the table can't be used until it's repaired.)
@code{FAST} and @code{CHANGED} are mostly intended to be used from a @code{FAST} and @code{CHANGED} are mostly intended to be used from a
script (for example to be executed from cron) if you want to check your script (for example to be executed from cron) if you want to check your
table from time to time. In most cases you @code{FAST} is to be prefered table from time to time. In most cases you @code{FAST} is to be prefered
over @code{CHANGED}. (The only case when it isn't is when you suspect a over @code{CHANGED}. (The only case when it isn't is when you suspect a
bug you have found a bug in the @code{MyISAM} code.). bug you have found a bug in the @code{MyISAM} code.)
@code{EXTENDED} is only to be used after you have run a normal check but @code{EXTENDED} is only to be used after you have run a normal check but
still get strange errors from a table when MySQL tries to still get strange errors from a table when MySQL tries to
...@@ -18626,7 +18313,7 @@ index file is truncated at start, so one usually ignore this space. ...@@ -18626,7 +18313,7 @@ index file is truncated at start, so one usually ignore this space.
This space is needed on the same disk as the original index file! This space is needed on the same disk as the original index file!
@item @item
When using @code{--recover} or @code{--sort-recover} When using @code{--recover} or @code{--sort-recover}
(but not when using @code{--safe-recover}, you will need space for a (but not when using @code{--safe-recover}), you will need space for a
sort buffer for: sort buffer for:
@code{(largest_key + row_pointer_length)*number_of_rows * 2}. @code{(largest_key + row_pointer_length)*number_of_rows * 2}.
You can check the length of the keys and the row_pointer_length with You can check the length of the keys and the row_pointer_length with
...@@ -19490,7 +19177,7 @@ error message @code{Host ... is blocked}. When more than ...@@ -19490,7 +19177,7 @@ error message @code{Host ... is blocked}. When more than
connection to the MySQL server, MySQL assumes connection to the MySQL server, MySQL assumes
something is wrong and blocks the host from further connection requests. something is wrong and blocks the host from further connection requests.
Flushing the host tables allows the host to attempt to connect Flushing the host tables allows the host to attempt to connect
again. @xref{Blocked host}.) You can start @code{mysqld} with again. @xref{Blocked host}. You can start @code{mysqld} with
@code{-O max_connection_errors=999999999} to avoid this error message. @code{-O max_connection_errors=999999999} to avoid this error message.
@item @code{LOGS} @tab Closes and reopens all log files. @item @code{LOGS} @tab Closes and reopens all log files.
...@@ -20716,7 +20403,7 @@ Assign an unique number to it. ...@@ -20716,7 +20403,7 @@ Assign an unique number to it.
@item @item
Create the file @file{sql/share/charsets/MYSET.conf}. Create the file @file{sql/share/charsets/MYSET.conf}.
(You can use @file{sql/share/charsets/latin1.conf} as a base for this). (You can use @file{sql/share/charsets/latin1.conf} as a base for this.)
The syntax for the file very simple: The syntax for the file very simple:
...@@ -21281,7 +20968,7 @@ shell> mysql -u root -S /tmp/mysql.sock -proot_password -e ...@@ -21281,7 +20968,7 @@ shell> mysql -u root -S /tmp/mysql.sock -proot_password -e
@xref{Privileges}. @xref{Privileges}.
@end example @end example
You will have to do the above for each @code{mysqld} running in each You will have to do the above for each @code{mysqld} running in each
data directory, that you have (just change the socket, -S=...) data directory, that you have (just change the socket, -S=...).
@item @item
@code{pid-file} is very important, if you are using @code{safe_mysqld} @code{pid-file} is very important, if you are using @code{safe_mysqld}
to start @code{mysqld} (e.g. --mysqld=safe_mysqld) Every @code{mysqld} to start @code{mysqld} (e.g. --mysqld=safe_mysqld) Every @code{mysqld}
...@@ -21317,7 +21004,7 @@ more flexibility. The order in which the @code{mysqlds} are started or ...@@ -21317,7 +21004,7 @@ more flexibility. The order in which the @code{mysqlds} are started or
stopped depends on the order in which they appear in the config file. stopped depends on the order in which they appear in the config file.
@item @item
When you want to refer to a certain group using GNR with this program, When you want to refer to a certain group using GNR with this program,
just use the number in the end of the group name ( [mysqld# <== ). just use the number in the end of the group name ([mysqld# <== ).
@item @item
You may want to use option '--user' for @code{mysqld}, but in order to You may want to use option '--user' for @code{mysqld}, but in order to
do this you need to be root when you start the @code{mysqld_multi} do this you need to be root when you start the @code{mysqld_multi}
...@@ -22088,7 +21775,7 @@ Continue even if we get a SQL error. ...@@ -22088,7 +21775,7 @@ Continue even if we get a SQL error.
@cindex @code{no-named-commands}, @code{mysql} option @cindex @code{no-named-commands}, @code{mysql} option
@item -g, --no-named-commands @item -g, --no-named-commands
Named commands are disabled. Use \* form only, or use named commands Named commands are disabled. Use \* form only, or use named commands
only in the beginning of a line ending with a semicolon (;). Since only in the beginning of a line ending with a semicolon (@samp{;}). Since
Version 10.9, the client now starts with this option ENABLED by default! Version 10.9, the client now starts with this option ENABLED by default!
With the -g option, long format commands will still work from the first With the -g option, long format commands will still work from the first
line, however. line, however.
...@@ -22742,7 +22429,7 @@ tables. ...@@ -22742,7 +22429,7 @@ tables.
output. The above line will be added otherwise, if --databases or output. The above line will be added otherwise, if --databases or
--all-databases option was given. --all-databases option was given.
@item -t, --no-create-info @item -t, --no-create-info
Don't write table creation information (The @code{CREATE TABLE} statement.) Don't write table creation information (the @code{CREATE TABLE} statement).
@item -d, --no-data @item -d, --no-data
Don't write any row information for the table. This is very useful if you Don't write any row information for the table. This is very useful if you
just want to get a dump of the structure for a table! just want to get a dump of the structure for a table!
...@@ -23192,7 +22879,7 @@ switch to a new log) by executing @code{FLUSH LOGS}. @xref{FLUSH}. ...@@ -23192,7 +22879,7 @@ switch to a new log) by executing @code{FLUSH LOGS}. @xref{FLUSH}.
@code{mysqld} writes all errors to the stderr, which the @code{mysqld} writes all errors to the stderr, which the
@code{safe_mysqld} script redirects to a file called @code{safe_mysqld} script redirects to a file called
@code{'hostname'.err}. (On Windows, @code{mysqld} writes this directly @code{'hostname'.err}. (On Windows, @code{mysqld} writes this directly
to @file{\mysql\data\mysql.err}). to @file{\mysql\data\mysql.err}.)
This contains information indicating when @code{mysqld} was started and This contains information indicating when @code{mysqld} was started and
stopped and also any critical errors found when running. If @code{mysqld} stopped and also any critical errors found when running. If @code{mysqld}
...@@ -23444,7 +23131,7 @@ The above command does the following: ...@@ -23444,7 +23131,7 @@ The above command does the following:
@itemize @bullet @itemize @bullet
@item @item
If standard logging (@code{--log}) or slow query logging If standard logging (@code{--log}) or slow query logging
(@code{--log-slow-queries}) is used, closes and reopens the log file. (@code{--log-slow-queries}) is used, closes and reopens the log file
(@file{mysql.log} and @file{`hostname`-slow.log} as default). (@file{mysql.log} and @file{`hostname`-slow.log} as default).
@item @item
If update logging (@code{--log-update}) is used, closes the update log and If update logging (@code{--log-update}) is used, closes the update log and
...@@ -23504,7 +23191,7 @@ Starting in Version 3.23.15, MySQL supports one-way replication ...@@ -23504,7 +23191,7 @@ Starting in Version 3.23.15, MySQL supports one-way replication
internally. One server acts as the master, while the other acts as the internally. One server acts as the master, while the other acts as the
slave. Note that one server could play the roles of master in one pair slave. Note that one server could play the roles of master in one pair
and slave in the other. The master server keeps a binary log of updates and slave in the other. The master server keeps a binary log of updates
(@xref{Binary log}.) and an index file to binary logs to keep track of (@pxref{Binary log}) and an index file to binary logs to keep track of
log rotation. The slave, upon connecting, informs the master where it log rotation. The slave, upon connecting, informs the master where it
left off since the last successfully propagated update, catches up on left off since the last successfully propagated update, catches up on
the updates, and then blocks and waits for the master to notify it of the updates, and then blocks and waits for the master to notify it of
...@@ -23525,7 +23212,7 @@ master. @xref{Backup}. ...@@ -23525,7 +23212,7 @@ master. @xref{Backup}.
MySQL replication is based on the server keeping track of all MySQL replication is based on the server keeping track of all
changes to your database (updates, deletes, etc) in the binary changes to your database (updates, deletes, etc) in the binary
log. (@xref{Binary log}.) and the slave server(s) reading the saved log (@pxref{Binary log}) and the slave server(s) reading the saved
queries from the master server's binary log so that the slave can queries from the master server's binary log so that the slave can
execute the same queries on its copy of the data. execute the same queries on its copy of the data.
...@@ -25339,7 +25026,7 @@ To help MySQL optimize queries better, run @code{myisamchk ...@@ -25339,7 +25026,7 @@ To help MySQL optimize queries better, run @code{myisamchk
--analyze} on a table after it has been loaded with relevant data. This --analyze} on a table after it has been loaded with relevant data. This
updates a value for each index part that indicates the average number of updates a value for each index part that indicates the average number of
rows that have the same value. (For unique indexes, this is always 1, rows that have the same value. (For unique indexes, this is always 1,
of course.). MySQL will use this to decide which index to of course.) MySQL will use this to decide which index to
choose when you connect two tables with 'a non-constant expression'. choose when you connect two tables with 'a non-constant expression'.
You can check the result from the @code{analyze} run by doing @code{SHOW You can check the result from the @code{analyze} run by doing @code{SHOW
INDEX FROM table_name} and examining the @code{Cardinality} column. INDEX FROM table_name} and examining the @code{Cardinality} column.
...@@ -26442,7 +26129,7 @@ would be available. Some of the cases where this happens are: ...@@ -26442,7 +26129,7 @@ would be available. Some of the cases where this happens are:
@item @item
If the use of the index would require MySQL to access more If the use of the index would require MySQL to access more
than 30 % of the rows in the table. (In this case a table scan is than 30 % of the rows in the table. (In this case a table scan is
probably much faster, as this will require us to do much fewer seeks). probably much faster, as this will require us to do much fewer seeks.)
Note that if such a query uses @code{LIMIT} to only retrieve Note that if such a query uses @code{LIMIT} to only retrieve
part of the rows, MySQL will use an index anyway, as it can part of the rows, MySQL will use an index anyway, as it can
much more quickly find the few rows to return in the result. much more quickly find the few rows to return in the result.
...@@ -26510,7 +26197,7 @@ supported. See @ref{Fulltext Search} for details. ...@@ -26510,7 +26197,7 @@ supported. See @ref{Fulltext Search} for details.
MySQL can create indexes on multiple columns. An index may MySQL can create indexes on multiple columns. An index may
consist of up to 15 columns. (On @code{CHAR} and @code{VARCHAR} columns you consist of up to 15 columns. (On @code{CHAR} and @code{VARCHAR} columns you
can also use a prefix of the column as a part of an index). can also use a prefix of the column as a part of an index.)
A multiple-column index can be considered a sorted array containing values A multiple-column index can be considered a sorted array containing values
that are created by concatenating the values of the indexed columns. that are created by concatenating the values of the indexed columns.
...@@ -26920,7 +26607,7 @@ when we tested them, neither was sufficiently bug free to allow ...@@ -26920,7 +26607,7 @@ when we tested them, neither was sufficiently bug free to allow
MySQL to be compiled with optimizations on. MySQL to be compiled with optimizations on.
When you compile MySQL you should only include support for the When you compile MySQL you should only include support for the
character sets that you are going to use. (Option @code{--with-charset=xxx}). character sets that you are going to use. (Option @code{--with-charset=xxx}.)
The standard MySQL binary distributions are compiled with support The standard MySQL binary distributions are compiled with support
for all character sets. for all character sets.
...@@ -26943,7 +26630,7 @@ the resulting binary can be up to 4 % faster. ...@@ -26943,7 +26630,7 @@ the resulting binary can be up to 4 % faster.
@item @item
If you connect using TCP/IP rather than Unix sockets, the result is 7.5% If you connect using TCP/IP rather than Unix sockets, the result is 7.5%
slower on the same computer. (If you are connection to @code{localhost}, slower on the same computer. (If you are connection to @code{localhost},
MySQL will, by default, use sockets). MySQL will, by default, use sockets.)
@item @item
If you connect using TCP/IP from another computer over a 100M Ethernet, If you connect using TCP/IP from another computer over a 100M Ethernet,
...@@ -27644,7 +27331,7 @@ A tab character. ...@@ -27644,7 +27331,7 @@ A tab character.
ASCII(26) (Control-Z). This character can be encoded to allow you to ASCII(26) (Control-Z). This character can be encoded to allow you to
go around the problem that ASCII(26) stands for END-OF-FILE on Windows. go around the problem that ASCII(26) stands for END-OF-FILE on Windows.
(ASCII(26) will cause problems if you try to use (ASCII(26) will cause problems if you try to use
@code{mysql database < filename}). @code{mysql database < filename}.)
@findex \\ (escape) @findex \\ (escape)
@findex escape (\\) @findex escape (\\)
...@@ -28447,7 +28134,7 @@ are @code{1901} to @code{2155}, @code{0000} in the 4-digit year format, ...@@ -28447,7 +28134,7 @@ are @code{1901} to @code{2155}, @code{0000} in the 4-digit year format,
and 1970-2069 if you use the 2-digit format (70-69). MySQL displays and 1970-2069 if you use the 2-digit format (70-69). MySQL displays
@code{YEAR} values in @code{YYYY} format, but allows you to assign values to @code{YEAR} values in @code{YYYY} format, but allows you to assign values to
@code{YEAR} columns using either strings or numbers. (The @code{YEAR} type is @code{YEAR} columns using either strings or numbers. (The @code{YEAR} type is
new in MySQL Version 3.22.). @xref{YEAR}. new in MySQL Version 3.22.) @xref{YEAR}.
@tindex NATIONAL CHAR @tindex NATIONAL CHAR
@tindex NCHAR @tindex NCHAR
...@@ -29084,7 +28771,7 @@ You can specify @code{TIME} values in a variety of formats: ...@@ -29084,7 +28771,7 @@ You can specify @code{TIME} values in a variety of formats:
@itemize @bullet @itemize @bullet
@item @item
As a string in @code{'D HH:MM:SS.fraction'} format. (Note that As a string in @code{'D HH:MM:SS.fraction'} format. (Note that
MySQL doesn't yet store the fraction for the time column). One MySQL doesn't yet store the fraction for the time column.) One
can also use one of the following ``relaxed'' syntax: can also use one of the following ``relaxed'' syntax:
@code{HH:MM:SS.fraction}, @code{HH:MM:SS}, @code{HH:MM}, @code{D HH:MM:SS}, @code{HH:MM:SS.fraction}, @code{HH:MM:SS}, @code{HH:MM}, @code{D HH:MM:SS},
...@@ -34028,7 +33715,7 @@ you create a table. A temporary table will automatically be deleted if a ...@@ -34028,7 +33715,7 @@ you create a table. A temporary table will automatically be deleted if a
connection dies and the name is per connection. This means that two different connection dies and the name is per connection. This means that two different
connections can both use the same temporary table name without conflicting connections can both use the same temporary table name without conflicting
with each other or with an existing table of the same name. (The existing table with each other or with an existing table of the same name. (The existing table
is hidden until the temporary table is deleted). is hidden until the temporary table is deleted.)
In MySQL Version 3.23 or later, you can use the keywords In MySQL Version 3.23 or later, you can use the keywords
@code{IF NOT EXISTS} so that an error does not occur if the table already @code{IF NOT EXISTS} so that an error does not occur if the table already
...@@ -34284,13 +33971,13 @@ many numbers that are the same. Prefix compression means that every ...@@ -34284,13 +33971,13 @@ many numbers that are the same. Prefix compression means that every
key needs one extra byte to indicate how many bytes of the previous key are key needs one extra byte to indicate how many bytes of the previous key are
the same for the next key (note that the pointer to the row is stored the same for the next key (note that the pointer to the row is stored
in high-byte-first-order directly after the key, to improve in high-byte-first-order directly after the key, to improve
compression.) This means that if you have many equal keys on two rows compression). This means that if you have many equal keys on two rows
in a row, all following 'same' keys will usually only take 2 bytes in a row, all following 'same' keys will usually only take 2 bytes
(including the pointer to the row). Compare this to the ordinary case (including the pointer to the row). Compare this to the ordinary case
where the following keys will take storage_size_for_key + where the following keys will take storage_size_for_key +
pointer_size (usually 4). On the other hand, if all keys are pointer_size (usually 4). On the other hand, if all keys are
totally different, you will lose 1 byte per key, if the key isn't a totally different, you will lose 1 byte per key, if the key isn't a
key that can have @code{NULL} values (In this case the packed key length will key that can have @code{NULL} values. (In this case the packed key length will
be stored in the same byte that is used to mark if a key is @code{NULL}.) be stored in the same byte that is used to mark if a key is @code{NULL}.)
@item @item
...@@ -34832,7 +34519,7 @@ columns. ...@@ -34832,7 +34519,7 @@ columns.
For @code{CHAR} and @code{VARCHAR} columns, indexes can be created that For @code{CHAR} and @code{VARCHAR} columns, indexes can be created that
use only part of a column, using @code{col_name(length)} syntax. (On use only part of a column, using @code{col_name(length)} syntax. (On
@code{BLOB} and @code{TEXT} columns the length is required). The @code{BLOB} and @code{TEXT} columns the length is required.) The
statement shown below creates an index using the first 10 characters of statement shown below creates an index using the first 10 characters of
the @code{name} column: the @code{name} column:
...@@ -35387,7 +35074,7 @@ The argument to @code{AGAINST} must be a constant string. ...@@ -35387,7 +35074,7 @@ The argument to @code{AGAINST} must be a constant string.
Unfortunately, full-text search has no user-tunable parameters yet, Unfortunately, full-text search has no user-tunable parameters yet,
although adding some is very high on the TODO. However, if you have a although adding some is very high on the TODO. However, if you have a
MySQL source distribution (@xref{Installing source}.), you can MySQL source distribution (@pxref{Installing source}), you can
somewhat alter the full-text search behavior. somewhat alter the full-text search behavior.
Note that full-text search was carefully tuned for the best searching Note that full-text search was carefully tuned for the best searching
...@@ -35529,7 +35216,7 @@ You can convert tables between different types with the @code{ALTER ...@@ -35529,7 +35216,7 @@ You can convert tables between different types with the @code{ALTER
TABLE} statement. @xref{ALTER TABLE, , @code{ALTER TABLE}}. TABLE} statement. @xref{ALTER TABLE, , @code{ALTER TABLE}}.
Note that MySQL supports two different kinds of Note that MySQL supports two different kinds of
tables. Transaction-safe tables (@code{BDB}, @code{InnoDB} tables: transaction-safe tables (@code{BDB} and @code{InnoDB})
and not transaction-safe tables (@code{HEAP}, @code{ISAM}, and not transaction-safe tables (@code{HEAP}, @code{ISAM},
@code{MERGE}, and @code{MyISAM}). @code{MERGE}, and @code{MyISAM}).
...@@ -36057,9 +35744,9 @@ In other words, the only ways this can go out of sync are: ...@@ -36057,9 +35744,9 @@ In other words, the only ways this can go out of sync are:
The @code{MyISAM} tables are copied without a @code{LOCK} and The @code{MyISAM} tables are copied without a @code{LOCK} and
@code{FLUSH TABLES}. @code{FLUSH TABLES}.
@item @item
MySQL has crashed between an update and the final close MySQL has crashed between an update and the final close.
(Note that the table may still be ok, as MySQL always issues writes (Note that the table may still be ok, as MySQL always issues writes
for everything between each statement). for everything between each statement.)
@item @item
Someone has done a @code{myisamchk --repair} or @code{myisamchk Someone has done a @code{myisamchk --repair} or @code{myisamchk
--update-state}on a table that was in use by @code{mysqld}. --update-state}on a table that was in use by @code{mysqld}.
...@@ -36403,7 +36090,7 @@ problem. As this is a two stage operation, any problems with BDB tables ...@@ -36403,7 +36090,7 @@ problem. As this is a two stage operation, any problems with BDB tables
may take a little longer for us to fix than for other table handlers. may take a little longer for us to fix than for other table handlers.
However, as the BerkeleyDB code itself has been used by many other However, as the BerkeleyDB code itself has been used by many other
applications than MySQL, we don't envision any big problems with applications than MySQL, we don't envision any big problems with
this. @xref{Table handler support}. this. @xref{Support}.
@node BDB install, BDB start, BDB overview, BDB @node BDB install, BDB start, BDB overview, BDB
...@@ -39035,13 +38722,13 @@ same order as they appear in the @strong{MyODBC} connect screen: ...@@ -39035,13 +38722,13 @@ same order as they appear in the @strong{MyODBC} connect screen:
@item 32 @tab Simulate a ODBC 1.0 driver in some context. @item 32 @tab Simulate a ODBC 1.0 driver in some context.
@item 64 @tab Ignore use of database name in 'database.table.column'. @item 64 @tab Ignore use of database name in 'database.table.column'.
@item 128 @tab Force use of ODBC manager cursors (experimental). @item 128 @tab Force use of ODBC manager cursors (experimental).
@item 256 @tab Disable the use of extended fetch (experimental) @item 256 @tab Disable the use of extended fetch (experimental).
@item 512 @tab Pad CHAR fields to full column length. @item 512 @tab Pad CHAR fields to full column length.
@item 1024 @tab SQLDescribeCol() will return fully qualifed column names @item 1024 @tab SQLDescribeCol() will return fully qualifed column names
@item 2048 @tab Use the compressed server/client protocol @item 2048 @tab Use the compressed server/client protocol
@item 4096 @tab Tell server to ignore space after function name and before @code{'('} (needed by PowerBuilder). This will make all function names keywords! @item 4096 @tab Tell server to ignore space after function name and before @code{'('} (needed by PowerBuilder). This will make all function names keywords!
@item 8192 @tab Connect with named pipes to a @code{mysqld} server running on NT. @item 8192 @tab Connect with named pipes to a @code{mysqld} server running on NT.
@item 16384 @tab Change LONGLONG columns to INT columns (Some applications can't handle LONGLONG). @item 16384 @tab Change LONGLONG columns to INT columns (some applications can't handle LONGLONG).
@item 32768 @tab Return 'user' as Table_qualifier and Table_owner from SQLTables (experimental) @item 32768 @tab Return 'user' as Table_qualifier and Table_owner from SQLTables (experimental)
@item 65536 @tab Read parameters from the @code{client} and @code{odbc} groups from @file{my.cnf} @item 65536 @tab Read parameters from the @code{client} and @code{odbc} groups from @file{my.cnf}
@item 131072 @tab Add some extra safety checks (should not bee needed but...) @item 131072 @tab Add some extra safety checks (should not bee needed but...)
...@@ -39497,7 +39184,7 @@ likely it is that we can fix the problem! ...@@ -39497,7 +39184,7 @@ likely it is that we can fix the problem!
* C API function overview:: C API Function Overview * C API function overview:: C API Function Overview
* C API functions:: C API Function Descriptions * C API functions:: C API Function Descriptions
* C Thread functions:: C Thread Functions * C Thread functions:: C Thread Functions
* C Embedded Server functions:: C Embedded Server functions. C Embedded Server Functions * C Embedded Server functions:: C Embedded Server Functions
* C API problems:: Common questions and problems when using the C API * C API problems:: Common questions and problems when using the C API
* Building clients:: Building Client Programs * Building clients:: Building Client Programs
* Threaded clients:: How to Make a Threaded Client * Threaded clients:: How to Make a Threaded Client
...@@ -43032,7 +42719,7 @@ Two APIs are available in the MySQL ...@@ -43032,7 +42719,7 @@ Two APIs are available in the MySQL
You can compile the MySQL Windows source with Borland C++ 5.02. You can compile the MySQL Windows source with Borland C++ 5.02.
(The Windows source includes only projects for Microsoft VC++, for (The Windows source includes only projects for Microsoft VC++, for
Borland C++ you have to do the project files yourself). Borland C++ you have to do the project files yourself.)
One known problem with Borland C++ is that it uses a different structure One known problem with Borland C++ is that it uses a different structure
alignment than VC++. This means that you will run into problems if you alignment than VC++. This means that you will run into problems if you
...@@ -43231,7 +42918,7 @@ you are using @code{--with-mysqld-ldflags=-all-static} If you want to ...@@ -43231,7 +42918,7 @@ you are using @code{--with-mysqld-ldflags=-all-static} If you want to
use an UDF that needs to access symbols from @code{mysqld} (like the use an UDF that needs to access symbols from @code{mysqld} (like the
@code{methaphone} example in @file{sql/udf_example.cc} that uses @code{methaphone} example in @file{sql/udf_example.cc} that uses
@code{default_charset_info}), you must link the program with @code{default_charset_info}), you must link the program with
@code{-rdynamic}. (see @code{man dlopen}). @code{-rdynamic} (see @code{man dlopen}).
For each function that you want to use in SQL statements, you should define For each function that you want to use in SQL statements, you should define
corresponding C (or C++) functions. In the discussion below, the name corresponding C (or C++) functions. In the discussion below, the name
...@@ -43732,7 +43419,7 @@ can take a look at @code{Item_func_mod::fix_length_and_dec} for a ...@@ -43732,7 +43419,7 @@ can take a look at @code{Item_func_mod::fix_length_and_dec} for a
typical example of how to do this. typical example of how to do this.
@end enumerate @end enumerate
All functions must be thread safe (In other words, don't use any global or All functions must be thread safe (in other words, don't use any global or
static variables in the functions without protecting them with mutexes). static variables in the functions without protecting them with mutexes).
If you want to return @code{NULL}, from @code{::val()}, @code{::val_int()} If you want to return @code{NULL}, from @code{::val()}, @code{::val_int()}
...@@ -43962,7 +43649,7 @@ The tests are located in @code{mysql-test/t/*.test} ...@@ -43962,7 +43649,7 @@ The tests are located in @code{mysql-test/t/*.test}
A test case consists of @code{;} terminated statements and is similar to the A test case consists of @code{;} terminated statements and is similar to the
input of @code{mysql} command line client. A statement by default is a query input of @code{mysql} command line client. A statement by default is a query
to be sent to MySQL server, unless it is recognized as internal to be sent to MySQL server, unless it is recognized as internal
command ( eg. @code{sleep} ). command (eg. @code{sleep}).
@item @item
All queries that produce results, e.g. @code{SELECT}, @code{SHOW}, All queries that produce results, e.g. @code{SELECT}, @code{SHOW},
...@@ -44836,7 +44523,7 @@ number 256 to affect the number of file descriptors available to ...@@ -44836,7 +44523,7 @@ number 256 to affect the number of file descriptors available to
@code{ulimit} (and @code{open-files-limit}) can increase the number of @code{ulimit} (and @code{open-files-limit}) can increase the number of
file descriptors, but only up to the limit imposed by the operating file descriptors, but only up to the limit imposed by the operating
system. There is also a 'hard' limit that can only be overrided if you system. There is also a 'hard' limit that can only be overrided if you
start @code{safe_mysqld} or @code{mysqld} as root (Just remember that start @code{safe_mysqld} or @code{mysqld} as root (just remember that
you need to also use the @code{--user=..} option in this case). If you you need to also use the @code{--user=..} option in this case). If you
need to increase the OS limit on the number of file descriptors need to increase the OS limit on the number of file descriptors
available to each process, consult the documentation for your operating available to each process, consult the documentation for your operating
...@@ -46099,7 +45786,7 @@ the MySQL database ...@@ -46099,7 +45786,7 @@ the MySQL database
@item @uref{http://io.incluso.com, Ionline - online publication:} MySQL, @item @uref{http://io.incluso.com, Ionline - online publication:} MySQL,
PHP, Java, Web programming, DB development PHP, Java, Web programming, DB development
@item @uref{http://www.baboo.com, BaBoo(Browse and bookmark). Free Web-based bookmark manager and Calendar} @item @uref{http://www.baboo.com, BaBoo (Browse and Bookmark). Free Web-based bookmark manager and Calendar}
@item @uref{http://www.courses.pjc.cc.fl.us/Schedule/index.php, Course @item @uref{http://www.courses.pjc.cc.fl.us/Schedule/index.php, Course
Schedule System at Pensacola Junior College} Schedule System at Pensacola Junior College}
...@@ -46443,7 +46130,7 @@ MySQL C++ API. By Satish @email{spitfire@@pn3.vsnl.net.in}. Inspired ...@@ -46443,7 +46130,7 @@ MySQL C++ API. By Satish @email{spitfire@@pn3.vsnl.net.in}. Inspired
by Roland Haenel's C++ API and Ed Carp's MyC library. by Roland Haenel's C++ API and Ed Carp's MyC library.
@item @uref{http://www.mysql.com/download_mysql++.html, mysql++} @item @uref{http://www.mysql.com/download_mysql++.html, mysql++}
MySQL C++ API (More than just a wrapper library.) Originally by MySQL C++ API (more than just a wrapper library). Originally by
@email{kevina@@clark.net}. Nowadays maintained by Sinisa at MySQL AB. @email{kevina@@clark.net}. Nowadays maintained by Sinisa at MySQL AB.
@item @uref{http://nelsonjr.homepage.com/NJrAPI,NJrAPI} @item @uref{http://nelsonjr.homepage.com/NJrAPI,NJrAPI}
...@@ -47193,7 +46880,7 @@ handlers with index compression and different record formats). ...@@ -47193,7 +46880,7 @@ handlers with index compression and different record formats).
The @code{HEAP} library. A memory table system with our superior full dynamic The @code{HEAP} library. A memory table system with our superior full dynamic
hashing. In use since 1981 and published around 1984. hashing. In use since 1981 and published around 1984.
@item @item
The @code{replace} program (look into it, it's COOL!). The @code{replace} program (take a look at it, it's @strong{COOL}!).
@item @item
@strong{MyODBC}, the ODBC driver for Windows95. @strong{MyODBC}, the ODBC driver for Windows95.
@item @item
...@@ -47225,7 +46912,7 @@ Lots of testing of new features. ...@@ -47225,7 +46912,7 @@ Lots of testing of new features.
@item @item
Our in-house ``free'' software lawyer. Our in-house ``free'' software lawyer.
@item @item
Mailing list maintainer (who never has the time to do it right...) Mailing list maintainer (who never has the time to do it right...).
@item @item
Our original portability code (more than 10 years old now). Nowadays Our original portability code (more than 10 years old now). Nowadays
only some parts of @code{mysys} are left. only some parts of @code{mysys} are left.
...@@ -47261,9 +46948,9 @@ Maintainer of mysql++. ...@@ -47261,9 +46948,9 @@ Maintainer of mysql++.
@item @item
Our security expert. Our security expert.
@item @item
Vio interface (The foundation for the encrypted client/server protocol). Vio interface (the foundation for the encrypted client/server protocol).
@item @item
MySQL Filesystem (A way to use MySQL databases as files MySQL Filesystem (a way to use MySQL databases as files
and directories). and directories).
@item @item
The CASE Expression. The CASE Expression.
...@@ -47354,7 +47041,7 @@ Jonas Norrman - Handles licensing questions sent to @email{info@@mysql.com}. ...@@ -47354,7 +47041,7 @@ Jonas Norrman - Handles licensing questions sent to @email{info@@mysql.com}.
@item @item
Erik Granberg - Handles MySQL partners (and a lot of other stuff). Erik Granberg - Handles MySQL partners (and a lot of other stuff).
@item @item
Allan Larsson (The BOSS for TCX DataKonsult AB). Allan Larsson (the BOSS for TCX DataKonsult AB).
@end table @end table
...@@ -48207,7 +47894,7 @@ Fixed bug when thread creation failed (could happen when doing a LOT ...@@ -48207,7 +47894,7 @@ Fixed bug when thread creation failed (could happen when doing a LOT
of connections in a short time). of connections in a short time).
@item @item
Fixed some problems with @code{FLUSH TABLES} and @code{TEMPORARY} tables. Fixed some problems with @code{FLUSH TABLES} and @code{TEMPORARY} tables.
(Problem with freeing the key cache and error @code{Can't reopen table...}). (Problem with freeing the key cache and error @code{Can't reopen table...}.)
@item @item
Fixed a problem in Innobase with other character sets than @code{latin1} Fixed a problem in Innobase with other character sets than @code{latin1}
and another problem when using many columns. and another problem when using many columns.
...@@ -48229,7 +47916,7 @@ Fixed a bug in @code{CONCAT_WS()} where it returned wrong results. ...@@ -48229,7 +47916,7 @@ Fixed a bug in @code{CONCAT_WS()} where it returned wrong results.
@item @item
Changed @code{CREATE ... INSERT} and @code{INSERT ... SELECT} to not Changed @code{CREATE ... INSERT} and @code{INSERT ... SELECT} to not
allow concurrent inserts as this could make the binary log hard to repeat. allow concurrent inserts as this could make the binary log hard to repeat.
(Concurrent inserts are enabled if you are not using the binary or update log). (Concurrent inserts are enabled if you are not using the binary or update log.)
@item @item
Changed some macros to be able to use fast mutex with glibc 2.2. Changed some macros to be able to use fast mutex with glibc 2.2.
@end itemize @end itemize
...@@ -49158,8 +48845,8 @@ More variables in @code{SHOW SLAVE STATUS} and @code{SHOW MASTER STATUS}. ...@@ -49158,8 +48845,8 @@ More variables in @code{SHOW SLAVE STATUS} and @code{SHOW MASTER STATUS}.
@item @item
@code{SLAVE STOP} now will not return until the slave thread actually exits. @code{SLAVE STOP} now will not return until the slave thread actually exits.
@item @item
Full text search via the @code{MATCH} function and @code{FULLTEXT} index type. Full text search via the @code{MATCH} function and @code{FULLTEXT} index type
(For MyISAM files). This makes @code{FULLTEXT} a reserved word. (for MyISAM files). This makes @code{FULLTEXT} a reserved word.
@end itemize @end itemize
...@@ -49232,13 +48919,13 @@ Fixed @code{chown} warning in @code{safe_mysqld}. ...@@ -49232,13 +48919,13 @@ Fixed @code{chown} warning in @code{safe_mysqld}.
Fixed a bug in @code{ORDER BY} that was introduced in 3.23.19. Fixed a bug in @code{ORDER BY} that was introduced in 3.23.19.
@item @item
Only optimize the @code{DELETE FROM tbl_name} to do a drop+create of Only optimize the @code{DELETE FROM tbl_name} to do a drop+create of
the table if we are in @code{AUTOCOMMIT} mode. (Needed for BDB tables). the table if we are in @code{AUTOCOMMIT} mode (needed for BDB tables).
@item @item
Added extra checks to avoid index corruption when the @code{ISAM}/@code{MyISAM} Added extra checks to avoid index corruption when the @code{ISAM}/@code{MyISAM}
index files gets full during an @code{INSERT}/@code{UPDATE}. index files gets full during an @code{INSERT}/@code{UPDATE}.
@item @item
@code{myisamchk} didn't correctly update row checksum when used with @code{myisamchk} didn't correctly update row checksum when used with
@code{-ro} (This only gave an warning in subsequent runs). @code{-ro} (this only gave an warning in subsequent runs).
@item @item
Fixed bug in @code{REPAIR TABLE} so that it works with tables without indexes. Fixed bug in @code{REPAIR TABLE} so that it works with tables without indexes.
@item @item
...@@ -49341,7 +49028,7 @@ Added 4 sample @code{my.cnf} example files in the @file{support-files} ...@@ -49341,7 +49028,7 @@ Added 4 sample @code{my.cnf} example files in the @file{support-files}
directory. directory.
@item @item
Fixed @code{duplicated key} problem when doing big @code{GROUP BY}'s. Fixed @code{duplicated key} problem when doing big @code{GROUP BY}'s.
(This bug was probably introduced in 3.23.15). (This bug was probably introduced in 3.23.15.)
@item @item
Changed syntax for @code{INNER JOIN} to match ANSI SQL. Changed syntax for @code{INNER JOIN} to match ANSI SQL.
@item @item
...@@ -49644,7 +49331,7 @@ Added variables @code{select_limit} and @code{max_join_size} to @code{mysql}. ...@@ -49644,7 +49331,7 @@ Added variables @code{select_limit} and @code{max_join_size} to @code{mysql}.
Added sql variables: @code{SQL_MAX_JOIN_SIZE} and @code{SQL_SAFE_UPDATES}. Added sql variables: @code{SQL_MAX_JOIN_SIZE} and @code{SQL_SAFE_UPDATES}.
@item @item
Added @code{READ LOCAL} lock that doesn't lock the table for concurrent Added @code{READ LOCAL} lock that doesn't lock the table for concurrent
inserts. (This is used by @code{mysqldump}). inserts. (This is used by @code{mysqldump}.)
@item @item
Changed that @code{LOCK TABLES ... READ} doesn't anymore allow concurrent Changed that @code{LOCK TABLES ... READ} doesn't anymore allow concurrent
inserts. inserts.
...@@ -49705,7 +49392,7 @@ is many keys to choose from. ...@@ -49705,7 +49392,7 @@ is many keys to choose from.
@item @item
Changed optimizer to prefer a range key instead of a ref key when the Changed optimizer to prefer a range key instead of a ref key when the
range key can uses more columns than the ref key (which only can use range key can uses more columns than the ref key (which only can use
columns with =). For example, the following type of queries should now columns with @code{=}). For example, the following type of queries should now
be faster: @code{SELECT * from key_part_1=const and key_part_2 > const2} be faster: @code{SELECT * from key_part_1=const and key_part_2 > const2}
@item @item
Fixed bug that a change of all @code{VARCHAR} columns to @code{CHAR} columns Fixed bug that a change of all @code{VARCHAR} columns to @code{CHAR} columns
...@@ -50008,7 +49695,7 @@ an empty value list to insert a row in which each column is set to its ...@@ -50008,7 +49695,7 @@ an empty value list to insert a row in which each column is set to its
default value. default value.
@item @item
Changed @code{SUBSTRING(text FROM pos)} to conform to ANSI SQL. (Before this Changed @code{SUBSTRING(text FROM pos)} to conform to ANSI SQL. (Before this
construct returned the rightmost 'pos' characters). construct returned the rightmost 'pos' characters.)
@item @item
@code{SUM()} with @code{GROUP BY} returned 0 on some systems. @code{SUM()} with @code{GROUP BY} returned 0 on some systems.
@item @item
...@@ -50180,7 +49867,7 @@ You can specify a netmask using the @code{IP/NETMASK} syntax. ...@@ -50180,7 +49867,7 @@ You can specify a netmask using the @code{IP/NETMASK} syntax.
@item @item
If you compare a @code{NOT NULL DATE/DATETIME} column with @code{IS If you compare a @code{NOT NULL DATE/DATETIME} column with @code{IS
NULL}, this is changed to a compare against @code{0} to satisfy some ODBC NULL}, this is changed to a compare against @code{0} to satisfy some ODBC
applications. (By @email{shreeve@@uci.edu}). applications. (By @email{shreeve@@uci.edu}.)
@item @item
@code{NULL IN (...)} now returns @code{NULL} instead of @code{0}. This will @code{NULL IN (...)} now returns @code{NULL} instead of @code{0}. This will
ensure that @code{null_column NOT IN (...)} doesn't match ensure that @code{null_column NOT IN (...)} doesn't match
...@@ -50457,7 +50144,7 @@ Fixed core dump with empty @code{BLOB/TEXT} column to @code{REVERSE()}. ...@@ -50457,7 +50144,7 @@ Fixed core dump with empty @code{BLOB/TEXT} column to @code{REVERSE()}.
Extended @code{/*! */} with version numbers. Extended @code{/*! */} with version numbers.
@item @item
Changed @code{SUBSTRING(text FROM pos)} to conform to ANSI SQL. (Before this Changed @code{SUBSTRING(text FROM pos)} to conform to ANSI SQL. (Before this
construct returned the rightmost 'pos' characters). construct returned the rightmost 'pos' characters.)
@item @item
Fixed problem with @code{LOCK TABLES} combined with @code{DELETE FROM table} Fixed problem with @code{LOCK TABLES} combined with @code{DELETE FROM table}
@item @item
...@@ -50578,7 +50265,7 @@ Fixed a problem with @code{Host '...' is not allowed to connect to this MySQL ...@@ -50578,7 +50265,7 @@ Fixed a problem with @code{Host '...' is not allowed to connect to this MySQL
server} after one had inserted a new MySQL user with a @code{GRANT} server} after one had inserted a new MySQL user with a @code{GRANT}
command. command.
@item @item
Changed to use @code{TCP_NODELAY} also on Linux (Should give faster TCP/IP Changed to use @code{TCP_NODELAY} also on Linux (should give faster TCP/IP
connections). connections).
@end itemize @end itemize
...@@ -50856,7 +50543,7 @@ Changed @code{+}, @code{-} (sign and minus), @code{*}, @code{/}, @code{%}, ...@@ -50856,7 +50543,7 @@ Changed @code{+}, @code{-} (sign and minus), @code{*}, @code{/}, @code{%},
Fixed a bug in @code{ALTER TABLE} that caused @code{mysqld} to crash. Fixed a bug in @code{ALTER TABLE} that caused @code{mysqld} to crash.
@item @item
MySQL now always reports the conflicting key values when a MySQL now always reports the conflicting key values when a
duplicate key entry occurs. (Before this was only reported for @code{INSERT}). duplicate key entry occurs. (Before this was only reported for @code{INSERT}.)
@item @item
New syntax: @code{INSERT INTO tbl_name SET col_name=value, col_name=value, ...} New syntax: @code{INSERT INTO tbl_name SET col_name=value, col_name=value, ...}
@item @item
...@@ -51596,7 +51283,7 @@ Fixed problem in range optimizer (core dump) for a very complex query. ...@@ -51596,7 +51283,7 @@ Fixed problem in range optimizer (core dump) for a very complex query.
Fixed problem when using @code{MIN(integer)} or @code{MAX(integer)} in Fixed problem when using @code{MIN(integer)} or @code{MAX(integer)} in
@code{GROUP BY}. @code{GROUP BY}.
@item @item
Fixed bug on Alpha when using integer keys. (Other keys worked on Alpha). Fixed bug on Alpha when using integer keys. (Other keys worked on Alpha.)
@item @item
Fixed bug in @code{WEEK("XXXX-xx-01")}. Fixed bug in @code{WEEK("XXXX-xx-01")}.
@end itemize @end itemize
...@@ -52306,7 +51993,7 @@ Added @code{--pid-file=#} option to @code{mysqld}. ...@@ -52306,7 +51993,7 @@ Added @code{--pid-file=#} option to @code{mysqld}.
@item @item
Added date formatting to @code{FROM_UNIXTIME()}, originally by Zeev Suraski. Added date formatting to @code{FROM_UNIXTIME()}, originally by Zeev Suraski.
@item @item
Fixed bug in @code{BETWEEN} in range optimizer (Did only test = of the first Fixed bug in @code{BETWEEN} in range optimizer (did only test = of the first
argument). argument).
@item @item
Added machine-dependent files for MIT-pthreads i386-SCO. There is probably Added machine-dependent files for MIT-pthreads i386-SCO. There is probably
...@@ -53918,8 +53605,8 @@ Copy on demand is in many case much better than page or row level ...@@ -53918,8 +53605,8 @@ Copy on demand is in many case much better than page or row level
locking; The worst case does, however, use much more memory than locking; The worst case does, however, use much more memory than
when using normal locks. when using normal locks.
Instead of using row level locks one can use application level locks. Instead of using row level locks one can use application level locks
(Like get_lock/release_lock in MySQL). This works of course (like get_lock/release_lock in MySQL). This works of course
only in well-behaved applications. only in well-behaved applications.
In many cases one can do an educated guess which locking type is best In many cases one can do an educated guess which locking type is best
...@@ -54432,7 +54119,7 @@ Unireg is currently only available in Swedish and Finnish. ...@@ -54432,7 +54119,7 @@ Unireg is currently only available in Swedish and Finnish.
The price tag for Unireg is 10,000 Swedish kr (about $1500 US), but this The price tag for Unireg is 10,000 Swedish kr (about $1500 US), but this
includes support. Unireg is distributed as a binary. (But all the ISAM includes support. Unireg is distributed as a binary. (But all the ISAM
sources can be found in MySQL). Usually we compile the binary for the sources can be found in MySQL.) Usually we compile the binary for the
customer at their site. customer at their site.
All new development is concentrated to MySQL. All new development is concentrated to MySQL.
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7