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Commit 21e7c668 authored by monty@donna.mysql.fi's avatar monty@donna.mysql.fi
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Portability fixes for Ia64 and Sgi compiler 

DROP DATABASE in mysqladmin asks for confirmation (again)
Added examined_rows to slow query log
SHOW CREATE for TEMPORARY table
parent 97c39276
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Showing with 263 additions and 132 deletions
Docs/manual.texi
View file @ 21e7c668
......@@ -533,18 +533,18 @@ InnoDB Tables
* InnoDB overview:: InnoDB tables overview
* InnoDB start:: InnoDB startup options
* Creating an InnoDB database:: Creating an InnoDB database. Creating an InnoDB database
* Creating an InnoDB database:: Creating an InnoDB database.
* Using InnoDB tables:: Creating InnoDB tables
* Adding and removing:: Adding and removing InnoDB data and log files
* Backing up:: Backing up and recovering an InnoDB database
* Moving:: Moving an InnoDB database to another machine
* InnoDB transaction model:: InnoDB transaction model. InnoDB transaction model
* InnoDB transaction model:: InnoDB transaction model.
* Implementation:: Implementation of multiversioning
* Table and index:: Table and index structures
* File space management:: File space management and disk i/o
* Error handling:: Error handling
* InnoDB restrictions:: Some restrictions on InnoDB tables
* InnoDB contact information:: InnoDB contact information. InnoDB contact information
* InnoDB contact information:: InnoDB contact information.
MySQL Tutorial
......@@ -666,7 +666,7 @@ Speed of Queries that Access or Update Data
MySQL Utilites
* Programs:: What do the executables do?
* mysqld-max::
* mysqld-max:: mysqld-max, An extended mysqld server
* safe_mysqld:: safe_mysqld, the wrapper around mysqld
* mysqld_multi:: Program for managing multiple @strong{MySQL} servers
* mysql:: The command line tool
......@@ -759,6 +759,7 @@ Problems and Common Errors
* No matching rows:: Solving problems with no matching rows
* ALTER TABLE problems:: Problems with @code{ALTER TABLE}.
* Change column order:: How to change the order of columns in a table
* Temporary table problems::
Some Common Errors When Using MySQL
......@@ -926,7 +927,7 @@ Changes in release 4.0.x (Development; Alpha)
Changes in release 3.23.x (Stable)
* News-3.23.38::
* News-3.23.38:: Changes in release 3.23.38
* News-3.23.37:: Changes in release 3.23.37
* News-3.23.36:: Changes in release 3.23.36
* News-3.23.35:: Changes in release 3.23.35
......@@ -2442,7 +2443,7 @@ New Client libraries for the Mac OS Classic (Macintosh).
@item @uref{http://www.lilback.com/macsql/}
Client libraries for Mac OS Classic (Macintosh).
@item @uref{http://mapage.noos.fr/vpenvern01/index_en.html}
@item @uref{http://sixk.maniasys.com/index_en.html}
MySQL for Amiga
@end table
......@@ -3104,8 +3105,23 @@ unsubscribe from the @code{myodbc} list, send a message to
@email{myodbc-subscribe@@lists.mysql.com} or
@email{myodbc-unsubscribe@@lists.mysql.com}.
There is also a german mailing list. You can find information about this
at: @uref{http://www.4t2.com/mysql}.
The following table shows some @strong{MySQL} mailing in other languages than
English. Note that these are not operated by @strong{MySQL AB}, so we can't
guarantee the quality on these.
@table @code
@item @email{mysql-france-subscribe@@yahoogroups.com, A French mailing list}
@item @email{list@@tinc.net, A Korean mailing list}
Email @code{subscribe mysql your@@email.address} to this list.
@item @email{mysql-de-request@@lists.4t2.com, A German mailing list}
Email @code{subscribe mysql-de your@@email.address} to this list.
You can find information about this mailing list at
@uref{http://www.4t2.com/mysql}.
@item @email{mysql-br-request@@listas.linkway.com.br, A Portugese mailing list}
Email @code{subscribe mysql-br your@@email.address} to this list.
@item @email{mysql-alta@@elistas.net, A Spanish mailing list}
Email @code{subscribe mysql your@@email.address} to this list.
@end table
@cindex net etiquette
@cindex mailing lists, archive location
......@@ -8680,6 +8696,16 @@ The optimization flags used by @strong{MySQL} (-O3) are not recognized by HP's
compilers. I did not change the flags.
@end itemize
If you get the following error from @code{configure}
@example
checking for cc option to accept ANSI C... no
configure: error: MySQL requires a ANSI C compiler (and a C++ compiler). Try gcc. See the Installation chapter in the Reference Manual.
@end example
Check that you don't have the path to the K&R compiler before the path
to the HP-UX C and C++ compiler.
@node Mac OS X, BEOS, HP-UX 11.x, Source install system issues
@subsection Mac OS X Notes
......@@ -18181,6 +18207,11 @@ per-connection basis. It will not be changed by another client. It will not
even be changed if you update another @code{AUTO_INCREMENT} column with a
non-magic value (that is, a value that is not @code{NULL} and not @code{0}).
If you insert many rows at the same time with an insert statement,
@code{LAST_INSERT_ID()} returns the value for the first inserted row.
The reason for this is so that you it makes it possible to easily reproduce
the same @code{INSERT} statement against some other server.
@cindex sequence emulation
If @code{expr} is given as an argument to @code{LAST_INSERT_ID()} in an
@code{UPDATE} clause, then the value of the argument is returned as a
......@@ -24378,18 +24409,18 @@ NuSphere is working on removing these limitations.
@menu
* InnoDB overview:: InnoDB tables overview
* InnoDB start:: InnoDB startup options
* Creating an InnoDB database:: Creating an InnoDB database. Creating an InnoDB database
* Creating an InnoDB database:: Creating an InnoDB database.
* Using InnoDB tables:: Creating InnoDB tables
* Adding and removing:: Adding and removing InnoDB data and log files
* Backing up:: Backing up and recovering an InnoDB database
* Moving:: Moving an InnoDB database to another machine
* InnoDB transaction model:: InnoDB transaction model. InnoDB transaction model
* InnoDB transaction model:: InnoDB transaction model.
* Implementation:: Implementation of multiversioning
* Table and index:: Table and index structures
* File space management:: File space management and disk i/o
* Error handling:: Error handling
* InnoDB restrictions:: Some restrictions on InnoDB tables
* InnoDB contact information:: InnoDB contact information. InnoDB contact information
* InnoDB contact information:: InnoDB contact information.
@end menu
@node InnoDB overview, InnoDB start, InnoDB, InnoDB
......@@ -24399,55 +24430,56 @@ InnoDB tables are included in the @strong{MySQL} source distribution
starting from 3.23.34a and are activated in the @strong{MySQL -max}
binary.
If you have downloaded a binary version of MySQL that includes
support for InnoDB, simply follow the instructions for
installing a binary version of MySQL.
See section 4.6 'Installing a MySQL Binary Distribution'.
If you have downloaded a binary version of @strong{MySQL} that includes
support for InnoDB (mysqld-max), simply follow the instructions for
installing a binary version of @strong{MySQL}. @xref{Installing binary}.
@xref{mysqld-max}.
To compile MySQL with InnoDB support, download MySQL-3.23.34a or newer
and configure @code{MySQL} with the
@code{--with-innobase} option. Starting from MySQL-3.23.37 the option
is @code{--with-innodb}. See section
4.7 'Installing a MySQL Source Distribution'.
To compile @strong{MySQL} with InnoDB support, download MySQL-3.23.37 or newer
and configure @code{MySQL} with the @code{--with-innodb} option.
@xref{Installing source}.
@example
cd /path/to/source/of/mysql-3.23.37
./configure --with-innodb
@end example
InnoDB provides MySQL with a transaction safe table handler with
InnoDB provides @strong{MySQL} with a transaction safe table handler with
commit, rollback, and crash recovery capabilities. InnoDB does
locking on row level, and also provides an Oracle-style consistent
non-locking read in @code{SELECTS}, which increases transaction
concurrency. There is not need for lock escalation in InnoDB,
because row level locks in InnoDB fit in very small space.
Technically, InnoDB is a database backend placed under MySQL. InnoDB
Technically, InnoDB is a database backend placed under @strong{MySQL}. InnoDB
has its own buffer pool for caching data and indexes in main
memory. InnoDB stores its tables and indexes in a tablespace, which
may consist of several files. This is different from, for example,
@code{MyISAM} tables where each table is stored as a separate file.
InnoDB is distributed under the GNU GPL License Version 2 (of June 1991).
In the source distribution of MySQL, InnoDB appears as a subdirectory.
In the source distribution of @strong{MySQL}, InnoDB appears as a subdirectory.
@node InnoDB start, Creating an InnoDB database, InnoDB overview, InnoDB
@subsection InnoDB startup options
Beginning from MySQL-3.23.37 the prefix of the options is changed
Beginning from @strong{MySQL}-3.23.37 the prefix of the options is changed
from @code{innobase_...} to @code{innodb_...}.
To use InnoDB tables you must specify configuration parameters
in the MySQL configuration file in the @code{[mysqld]} section of
the configuration file @file{my.cnf}.
Suppose you have a Windows NT machine with 128 MB RAM and a
single 10 GB hard disk.
Below is an example of possible configuration parameters in @file{my.cnf} for
InnoDB:
To use InnoDB tables you @strong{MUST} specify configuration parameters
in the @strong{MySQL} configuration file in the @code{[mysqld]} section of
the configuration file @file{my.cnf}. @xref{Option files}.
The only required parameter to use InnoDB is @code{innodb_data_file_path},
but you should set others if you want to get a better performance.
Suppose you have a Windows NT machine with 128 MB RAM and a single 10 GB
hard disk. Below is an example of possible configuration parameters in
@file{my.cnf} for InnoDB:
@example
innodb_data_home_dir = c:\ibdata
innodb_data_file_path = ibdata1:2000M;ibdata2:2000M
innodb_data_home_dir = c:\ibdata
set-variable = innodb_mirrored_log_groups=1
innodb_log_group_home_dir = c:\iblogs
set-variable = innodb_log_files_in_group=3
......@@ -24469,8 +24501,8 @@ Below is an example of possible configuration parameters in @file{my.cnf} for
InnoDB:
@example
innodb_data_home_dir = /
innodb_data_file_path = ibdata/ibdata1:2000M;dr2/ibdata/ibdata2:2000M
innodb_data_home_dir = /
set-variable = innodb_mirrored_log_groups=1
innodb_log_group_home_dir = /dr3
set-variable = innodb_log_files_in_group=3
......@@ -24540,7 +24572,7 @@ log archiving. The value of this parameter should currently be set the
same as @code{innodb_log_group_home_dir}.
@item @code{innodb_log_archive} @tab
This value should currently be set to 0. As recovery from a backup is
done by MySQL using its own log files, there is currently no need to
done by @strong{MySQL} using its own log files, there is currently no need to
archive InnoDB log files.
@item @code{innodb_buffer_pool_size} @tab
The size of the memory buffer InnoDB uses to cache data and indexes of
......@@ -24555,7 +24587,7 @@ and other internal data structures. A sensible value for this might be
2M, but the more tables you have in your application the more you will
need to allocate here. If InnoDB runs out of memory in this pool, it
will start to allocate memory from the operating system, and write
warning messages to the MySQL error log.
warning messages to the @strong{MySQL} error log.
@item @code{innodb_file_io_threads} @tab
Number of file i/o threads in InnoDB. Normally, this should be 4, but
on Windows NT disk i/o may benefit from a larger number.
......@@ -24572,15 +24604,15 @@ resolve the situation.
@node Creating an InnoDB database, Using InnoDB tables, InnoDB start, InnoDB
@subsection Creating an InnoDB database
Suppose you have installed MySQL and have edited @file{my.cnf} so that
Suppose you have installed @strong{MySQL} and have edited @file{my.cnf} so that
it contains the necessary InnoDB configuration parameters.
Before starting MySQL you should check that the directories you have
Before starting @strong{MySQL} you should check that the directories you have
specified for InnoDB data files and log files exist and that you have
access rights to those directories. InnoDB
cannot create directories, only files. Check also you have enough disk space
for the data and log files.
When you now start MySQL, InnoDB will start creating your data files
When you now start @strong{MySQL}, InnoDB will start creating your data files
and log files. InnoDB will print something like the following:
@example
......@@ -24605,9 +24637,9 @@ InnoDB: Started
mysqld: ready for connections
@end example
A new InnoDB database has now been created. You can connect to the MySQL
server with the usual MySQL client programs like @code{mysql}.
When you shut down the MySQL server with @file{mysqladmin shutdown},
A new InnoDB database has now been created. You can connect to the @strong{MySQL}
server with the usual @strong{MySQL} client programs like @code{mysql}.
When you shut down the @strong{MySQL} server with @file{mysqladmin shutdown},
InnoDB output will be like the following:
@example
......@@ -24622,7 +24654,7 @@ will see the files created. The log directory will also contain
a small file named @file{ib_arch_log_0000000000}. That file
resulted from the database creation, after which InnoDB switched off
log archiving.
When MySQL is again started, the output will be like the following:
When @strong{MySQL} is again started, the output will be like the following:
@example
~/mysqlm/sql > mysqld
......@@ -24632,17 +24664,17 @@ mysqld: ready for connections
@subsubsection If something goes wrong in database creation
If something goes wrong in an InnoDB database creation, you should delete
all files created by InnoDB. This means all data files, all log files,
the small archived log file, and in the case you already did create
some InnoDB tables, delete also the corresponding @file{.frm}
files for these tables from the MySQL database directories. Then you can
try the InnoDB database creation again.
If something goes wrong in an InnoDB database creation, you should
delete all files created by InnoDB. This means all data files, all log
files, the small archived log file, and in the case you already did
create some InnoDB tables, delete also the corresponding @file{.frm}
files for these tables from the @strong{MySQL} database
directories. Then you can try the InnoDB database creation again.
@node Using InnoDB tables, Adding and removing, Creating an InnoDB database, InnoDB
@subsection Creating InnoDB tables
Suppose you have started the MySQL client with the command
Suppose you have started the @strong{MySQL} client with the command
@code{mysql test}.
To create a table in the InnoDB format you must specify
@code{TYPE = InnoDB} in the table creation SQL command:
......@@ -24653,15 +24685,15 @@ CREATE TABLE CUSTOMER (A INT, B CHAR (20), INDEX (A)) TYPE = InnoDB;
This SQL command will create a table and an index on column @code{A}
into the InnoDB tablespace consisting of the data files you specified
in @file{my.cnf}. In addition MySQL will create a file
@file{CUSTOMER.frm} to the MySQL database directory @file{test}.
in @file{my.cnf}. In addition @strong{MySQL} will create a file
@file{CUSTOMER.frm} to the @strong{MySQL} database directory @file{test}.
Internally, InnoDB will add to its own data dictionary an entry
for table @code{'test/CUSTOMER'}. Thus you can create a table
of the same name @code{CUSTOMER} in another database of MySQL, and
of the same name @code{CUSTOMER} in another database of @strong{MySQL}, and
the table names will not collide inside InnoDB.
You can query the amount of free space in the InnoDB tablespace
by issuing the table status command of MySQL for any table you have
by issuing the table status command of @strong{MySQL} for any table you have
created with @code{TYPE = InnoDB}. Then the amount of free
space in the tablespace appears in the table comment section in the
output of @code{SHOW}. An example:
......@@ -24679,7 +24711,7 @@ You must drop the tables individually. Also take care not to delete or
add @file{.frm} files to your InnoDB database manually: use
@code{CREATE TABLE} and @code{DROP TABLE} commands.
InnoDB has its own internal data dictionary, and you will get problems
if the MySQL @file{.frm} files are out of 'sync' with the InnoDB
if the @strong{MySQL} @file{.frm} files are out of 'sync' with the InnoDB
internal data dictionary.
@node Adding and removing, Backing up, Using InnoDB tables, InnoDB
......@@ -24687,8 +24719,8 @@ internal data dictionary.
You cannot increase the size of an InnoDB data file. To add more into
your tablespace you have to add a new data file. To do this you have to
shut down your MySQL database, edit the @file{my.cnf} file, adding a
new file to @code{innodb_data_file_path}, and then start MySQL
shut down your @strong{MySQL} database, edit the @file{my.cnf} file, adding a
new file to @code{innodb_data_file_path}, and then start @strong{MySQL}
again.
Currently you cannot remove a data file from InnoDB. To decrease the
......@@ -24697,11 +24729,11 @@ all your tables, create a new database, and import your tables to the
new database.
If you want to change the number or the size of your InnoDB log files,
you have to shut down MySQL and make sure that it shuts down without errors.
you have to shut down @strong{MySQL} and make sure that it shuts down without errors.
Then copy the old log files into a safe place just in case something
went wrong in the shutdown and you will need them to recover the
database. Delete then the old log files from the log file directory,
edit @file{my.cnf}, and start MySQL again. InnoDB will tell
edit @file{my.cnf}, and start @strong{MySQL} again. InnoDB will tell
you at the startup that it is creating new log files.
@node Backing up, Moving, Adding and removing, InnoDB
......@@ -24712,7 +24744,7 @@ To take a 'binary' backup of your database you have to do the following:
@itemize @bullet
@item
Shut down your MySQL database and make sure it shuts down without errors.
Shut down your @strong{MySQL} database and make sure it shuts down without errors.
@item
Copy all your data files into a safe place.
@item
......@@ -24743,12 +24775,12 @@ dumps. Then you can take the binary backup, and you will then have
a consistent snapshot of your database in two formats.
To be able to recover your InnoDB database to the present from the
binary backup described above, you have to run your MySQL database
with the general logging and log archiving of MySQL switched on. Here
by the general logging we mean the logging mechanism of the MySQL server
binary backup described above, you have to run your @strong{MySQL} database
with the general logging and log archiving of @strong{MySQL} switched on. Here
by the general logging we mean the logging mechanism of the @strong{MySQL} server
which is independent of InnoDB logs.
To recover from a crash of your MySQL server process, the only thing
To recover from a crash of your @strong{MySQL} server process, the only thing
you have to do is to restart it. InnoDB will automatically check the
logs and perform a roll-forward of the database to the present.
InnoDB will automatically roll back uncommitted transactions which were
......@@ -24783,7 +24815,7 @@ mysqld: ready for connections
If your database gets corrupted or your disk fails, you have
to do the recovery from a backup. In the case of corruption, you should
first find a backup which is not corrupted. From a backup do the recovery
from the general log files of MySQL according to instructions in the
from the general log files of @strong{MySQL} according to instructions in the
MySQL manual.
@subsubsection Checkpoints
......@@ -24849,7 +24881,7 @@ to lock every row in the database, or any random subset of the rows,
without InnoDB running out of memory.
In InnoDB all user activity happens inside transactions. If the
auto commit mode is used in MySQL, then each SQL statement
auto commit mode is used in @strong{MySQL}, then each SQL statement
will form a single transaction. If the auto commit mode is
switched off, then we can think that a user always has a transaction
open. If he issues
......@@ -25017,7 +25049,7 @@ on the duplicate index record.
@code{INSERT INTO T SELECT ... FROM S WHERE ...} sets an exclusive
(non-next-key) lock on each row inserted into @code{T}. Does
the search on @code{S} as a consistent read, but sets shared next-key
locks on @code{S} if the MySQL logging is on. InnoDB has to set
locks on @code{S} if the @strong{MySQL} logging is on. InnoDB has to set
locks in the latter case because in roll-forward recovery from a
backup every SQL statement has to be executed in exactly the same
way as it was done originally.
......@@ -25037,10 +25069,10 @@ lock on every record the search encounters.
lock on every record the search encounters.
@item
@code{LOCK TABLES ... } : sets table locks. In the implementation
the MySQL layer of code sets these locks. The automatic deadlock detection
the @strong{MySQL} layer of code sets these locks. The automatic deadlock detection
of InnoDB cannot detect deadlocks where such table locks are involved:
see the next section below. See also section 13 'InnoDB restrictions'
about the following: since MySQL does know about row level locks,
about the following: since @strong{MySQL} does know about row level locks,
it is possible that you
get a table lock on a table where another user currently has row level
locks. But that does not put transaction integerity into danger.
......@@ -25051,7 +25083,7 @@ locks. But that does not put transaction integerity into danger.
InnoDB automatically detects a deadlock of transactions and rolls
back the transaction whose lock request was the last one to build
a deadlock, that is, a cycle in the waits-for graph of transactions.
InnoDB cannot detect deadlocks where a lock set by a MySQL
InnoDB cannot detect deadlocks where a lock set by a @strong{MySQL}
@code{LOCK TABLES} statement is involved, or if a lock set
in another table handler than InnoDB is involved. You have to resolve
these situations using @code{innodb_lock_wait_timeout} set in
......@@ -25318,7 +25350,7 @@ The following list specifies the error handling of InnoDB.
@itemize @bullet
@item
If you run out of file space in the tablespace,
you will get the MySQL @code{'Table is full'} error
you will get the @strong{MySQL} @code{'Table is full'} error
and InnoDB rolls back the SQL statement.
@item
A transaction deadlock or a timeout in a lock wait will give
......@@ -25333,7 +25365,7 @@ statement.
@item
A 'row too long' error rolls back the SQL statement.
@item
Other errors are mostly detected by the MySQL layer of code, and
Other errors are mostly detected by the @strong{MySQL} layer of code, and
they roll back the corresponding SQL statement.
@end itemize
......@@ -25353,7 +25385,7 @@ where only the first 5 characters from column @code{A} are stored.
@item
@code{INSERT DELAYED} is not supported for InnoDB tables.
@item
The MySQL @code{LOCK TABLES} operation does not know of InnoDB
The @strong{MySQL} @code{LOCK TABLES} operation does not know of InnoDB
row level locks set in already completed SQL statements: this means that
you can get a table lock on a table even if there still exist transactions
of other users which have row level locks on the same table. Thus
......@@ -25370,7 +25402,7 @@ A table cannot contain more than 1000 columns.
@item
@code{DELETE FROM TABLE} does not regenerate the table but instead
deletes all rows, one by one, which is not that fast. In future versions
of MySQL you can use @code{TRUNCATE} which is fast.
of @strong{MySQL} you can use @code{TRUNCATE} which is fast.
@item
Before dropping a database with InnoDB tables one has to drop
the individual InnoDB tables first.
......@@ -31451,7 +31483,7 @@ We can find the result from crash-me on a lot of different databases at
@menu
* Programs:: What do the executables do?
* mysqld-max::
* mysqld-max:: mysqld-max, An extended mysqld server
* safe_mysqld:: safe_mysqld, the wrapper around mysqld
* mysqld_multi:: Program for managing multiple @strong{MySQL} servers
* mysql:: The command line tool
......@@ -31636,6 +31668,13 @@ The meaning of the values are:
@item DISABLED @tab The xxxx option is disabled because one started @code{mysqld} with @code{--skip-xxxx} or because one didn't start @code{mysqld} with all needed options to enable the option. In this case the @code{hostname.err} file should contain a reason for why the option is disabled.
@end multitable
@strong{NOTE}: To be able to create InnoDB tables you @strong{MUST} edit
your startup options to include at least the @code{innodb_data_file_path}
option. @xref{InnoDB start}.
To get better performance for BDB tables, you should add some configuration
options for these too. @xref{BDB start}.
@code{safe_mysqld} will automaticly try to start any @code{mysqld} binary
with the @code{-max} prefix. This makes it very easy to test out a
another @code{mysqld} binary in an existing installation. Just
......@@ -31657,6 +31696,7 @@ binaries includes:
@item HPUX 11.0 @tab N @tab Y
@item Linux-Alpha @tab N @tab Y
@item Linux-Intel @tab Y @tab Y
@item Linux-Ia64 @tab N @tab Y
@item Solaris-intel @tab N @tab Y
@item Solaris-sparc @tab Y @tab Y
@item SCO OSR5 @tab Y @tab Y
......@@ -35602,6 +35642,8 @@ INSERT INTO foo (auto,text) VALUES(NULL,'text');
INSERT INTO foo2 (id,text) VALUES(LAST_INSERT_ID(),'text');
@end example
@xref{Getting unique ID}.
For the benefit of some ODBC applications (at least Delphi and Access),
the following query can be used to find a newly inserted row:
@example
......@@ -35762,6 +35804,7 @@ pre-allocated MYSQL struct.
* No matching rows:: Solving problems with no matching rows
* ALTER TABLE problems:: Problems with @code{ALTER TABLE}.
* Change column order:: How to change the order of columns in a table
* Temporary table problems::
@end menu
This chapter lists some common problems and error messages that users have
......@@ -37308,7 +37351,7 @@ simple rename should get your data back.
@cindex columns, changing
@cindex changing, column order
@cindex tables, changing column order
@node Change column order, , ALTER TABLE problems, Problems
@node Change column order, Temporary table problems, ALTER TABLE problems, Problems
@section How To Change the Order of Columns in a Table
The whole point of SQL is to abstract the application from the data
......@@ -37347,6 +37390,32 @@ Drop or rename @code{old_table}.
@code{ALTER TABLE new_table RENAME old_table}.
@end enumerate
@cindex temporary tables, problems
@node Temporary table problems, , Change column order, Problems
@section TEMPORARY TABLE problems
The following are a list of the limitations with @code{TEMPORARY TABLES}.
@itemize @bullet
@item
A temporary table can only be of type @code{HEAP}, @code{ISAM} or
@code{MyISAM}.
@item
You can't use temporary tables more than once in the same query.
For example, the following doesn't work.
@example
select * from temporary_table, temporary_table as t2;
@end example
We plan to fix the above in 4.0.
@item
You can't use @code{RENAME} on a @code{TEMPORARY} table.
Note that @code{ALTER TABLE org_name RENAME new_name} works!
We plan to fix the above in 4.0.
@end itemize
@cindex problems, solving
@cindex solving, problems
@cindex databases, replicating
......@@ -43972,6 +44041,10 @@ not yet 100% confident in this code.
@appendixsubsec Changes in release 3.23.38
@itemize @bullet
@item
@code{SHOW CREATE TABLE} now returns @code{TEMPORARY} for temporary tables.
@item
Added @code{Rows_examined} to slow query log.
@item
Fixed problems with function returning empty string when using
together with a group functions and a @code{WHERE} that didn't match any rows.
@item
......@@ -49018,11 +49091,15 @@ mysql> UPDATE tbl_name SET KEY=KEY+1,KEY=KEY+1;
will update @code{KEY} with @code{2} instead of with @code{1}.
@item
You can't use temporary tables more than once in the same query.
For example, the following doesn't work.
@example
select * from temporary_table, temporary_table as t2;
@end example
@item
@code{RENAME} doesn't work with @code{TEMPORARY} tables.
@item
The optimizer may handle @code{DISTINCT} differently if you are using
'hidden' columns in a join or not. In a join, hidden columns are
acinclude.m4
View file @ 21e7c668
......@@ -199,7 +199,7 @@ fi
AC_DEFUN(MYSQL_PTHREAD_YIELD,
[AC_CACHE_CHECK([if pthread_yield takes zero arguments], ac_cv_pthread_yield_zero_arg,
[AC_TRY_COMPILE([#define _GNU_SOURCE
[AC_TRY_LINK([#define _GNU_SOURCE
#include <pthread.h>
#ifdef __cplusplus
extern "C"
......@@ -214,7 +214,7 @@ then
fi
]
[AC_CACHE_CHECK([if pthread_yield takes 1 argument], ac_cv_pthread_yield_one_arg,
[AC_TRY_COMPILE([#define _GNU_SOURCE
[AC_TRY_LINK([#define _GNU_SOURCE
#include <pthread.h>
#ifdef __cplusplus
extern "C"
......@@ -550,7 +550,8 @@ AC_DEFUN(MYSQL_STACK_DIRECTION,
AC_DEFUN(MYSQL_FUNC_ALLOCA,
[
# Since we have heard that alloca fails on IRIX never define it on a SGI machine
# Since we have heard that alloca fails on IRIX never define it on a
# SGI machine
if test ! "$host_vendor" = "sgi"
then
AC_REQUIRE_CPP()dnl Set CPP; we run AC_EGREP_CPP conditionally.
......
client/errmsg.c
View file @ 21e7c668
......@@ -36,14 +36,16 @@ const char *client_errors[]=
"MySQL client got out of memory",
"Wrong host info",
"Localhost via UNIX socket",
"%s via TCP/IP",
"%-.64s via TCP/IP",
"Error in server handshake",
"Lost connection to MySQL server during query",
"Commands out of sync; You can't run this command now",
"Verbindung ueber Named Pipe; Host: %-.64s",
"Kann nicht auf Named Pipe warten. Host: %-.64s pipe: %-.32s (%lu)",
"Kann Named Pipe nicht oeffnen. Host: %-.64s pipe: %-.32s (%lu)",
"Kann den Status der Named Pipe nicht setzen. Host: %-.64s pipe: %-.32s (%lu)"
"Kann den Status der Named Pipe nicht setzen. Host: %-.64s pipe: %-.32s (%lu)",
"Can't initialize character set %-.64s (path: %-.64s)",
"Got packet bigger than 'max_allowed_packet'"
};
#else /* ENGLISH */
......@@ -60,19 +62,21 @@ const char *client_errors[]=
"MySQL client run out of memory",
"Wrong host info",
"Localhost via UNIX socket",
"%s via TCP/IP",
"%-.64s via TCP/IP",
"Error in server handshake",
"Lost connection to MySQL server during query",
"Commands out of sync; You can't run this command now",
"%s via named pipe",
"%-.64s via named pipe",
"Can't wait for named pipe to host: %-.64s pipe: %-.32s (%lu)",
"Can't open named pipe to host: %-.64s pipe: %-.32s (%lu)",
"Can't set state of named pipe to host: %-.64s pipe: %-.32s (%lu)",
"Can't initialize character set %-.64s (path: %-.64s)",
"Got packet bigger than 'max_allowed_packet'"
};
#endif
void init_client_errs(void)
{
errmsg[CLIENT_ERRMAP] = &client_errors[0];
my_errmsg[CLIENT_ERRMAP] = &client_errors[0];
}
client/mysqladmin.c
View file @ 21e7c668
......@@ -28,7 +28,7 @@
#include <my_pthread.h> /* because of signal() */
#endif
#define ADMIN_VERSION "8.19"
#define ADMIN_VERSION "8.20"
#define MAX_MYSQL_VAR 64
#define SHUTDOWN_DEF_TIMEOUT 3600 /* Wait for shutdown */
#define MAX_TRUNC_LENGTH 3
......@@ -423,13 +423,8 @@ static my_bool execute_commands(MYSQL *mysql,int argc, char **argv)
my_printf_error(0,"Too few arguments to drop",MYF(ME_BELL));
return 1;
}
sprintf(buff,"drop database `%.*s`",FN_REFLEN,argv[1]);
if (mysql_query(mysql,buff))
{
my_printf_error(0,"DROP DATABASE failed; error: '%-.200s'",
MYF(ME_BELL), mysql_error(mysql));
if (drop_db(mysql,argv[1]))
return 1;
}
argc--; argv++;
break;
}
......@@ -867,7 +862,8 @@ static int drop_db(MYSQL *mysql, const char *db)
{
puts("Dropping the database is potentially a very bad thing to do.");
puts("Any data stored in the database will be destroyed.\n");
printf("Do you really want to drop the '%s' database [y/N]\n",db);
printf("Do you really want to drop the '%s' database [y/N] ",db);
fflush(stdout);
VOID(fgets(buf,sizeof(buf)-1,stdin));
if ((*buf != 'y') && (*buf != 'Y'))
{
......@@ -878,7 +874,7 @@ static int drop_db(MYSQL *mysql, const char *db)
sprintf(name_buff,"drop database %.*s",FN_REFLEN,db);
if (mysql_query(mysql,name_buff))
{
my_printf_error(0,"drop of '%s' failed;\nerror: '%s'",MYF(ME_BELL),
my_printf_error(0,"DROP DATABASE %s failed;\nerror: '%s'",MYF(ME_BELL),
db,mysql_error(mysql));
return 1;
}
......
client/mysqltest.c
View file @ 21e7c668
......@@ -569,7 +569,7 @@ int eval_expr(VAR* v, const char* p, const char** p_end)
else
{
v->str_val = (char*)p;
v->str_val_len = (p_end && *p_end) ? *p_end - p : strlen(p);
v->str_val_len = (p_end && *p_end) ? (int) (*p_end - p) : (int) strlen(p);
v->int_val=atoi(p);
v->int_dirty=0;
return 0;
......
configure.in
View file @ 21e7c668
......@@ -119,6 +119,17 @@ AC_PROG_AWK
AC_PROG_CC
AC_PROG_CXX
AC_PROG_CPP
# Fix for sgi gcc / sgiCC which tries to emulate gcc
if test "$CC" = "sgicc"
then
ac_cv_prog_gcc="no"
fi
if test "$CXX" = "sgi++"
then
GXX="no"
fi
if test "$ac_cv_prog_gcc" = "yes"
then
AS="$CC -c"
......@@ -390,7 +401,7 @@ AM_PROG_CC_STDC
if test "$am_cv_prog_cc_stdc" = "no"
then
AC_MSG_ERROR([MySQL requiers a ANSI C compiler (and a C++ compiler). Try gcc. See the Installation chapter in the Reference Manual.])
AC_MSG_ERROR([MySQL requires a ANSI C compiler (and a C++ compiler). Try gcc. See the Installation chapter in the Reference Manual.])
fi
NOINST_LDFLAGS=
......@@ -1215,7 +1226,7 @@ fi
AC_SUBST(COMPILATION_COMMENT)
AC_MSG_CHECKING("need of special linking flags")
if test "$IS_LINUX" = "true" -a "$all_is_static" != "yes"
if test "$IS_LINUX" = "true" -a "$ac_cv_prog_gcc" = "yes" -a "$all_is_static" != "yes"
then
LDFLAGS="$LDFLAGS -rdynamic"
AC_MSG_RESULT("-rdynamic")
......
extra/resolve_stack_dump.c
View file @ 21e7c668
......@@ -303,7 +303,7 @@ static void do_resolve()
uchar* addr = (uchar*)read_addr(&p);
if(resolve_addr(addr, &se))
fprintf(fp_out, "%p %s + %d\n", addr, se.symbol,
addr - se.addr);
(int) (addr - se.addr));
else
fprintf(fp_out, "%p (?)\n", addr);
......
include/global.h
View file @ 21e7c668
......@@ -332,7 +332,8 @@ typedef int File; /* File descriptor */
typedef int my_socket; /* File descriptor for sockets */
#define INVALID_SOCKET -1
#endif
typedef RETSIGTYPE sig_handler; /* Function to handle signals */
/* Type for fuctions that handles signals */
#define sig_handler RETSIGTYPE
typedef void (*sig_return)();/* Returns type from signal */
#if defined(__GNUC__) && !defined(_lint)
typedef char pchar; /* Mixed prototypes can take char */
......
isam/_dbug.c
View file @ 21e7c668
......@@ -85,7 +85,7 @@ void _nisam_print_key(FILE *stream, register N_KEYSEG *keyseg, const uchar *key)
key=end;
break;
case HA_KEYTYPE_INT24:
VOID(fprintf(stream,"%ld",sint3korr(key)));
VOID(fprintf(stream,"%ld",(long) sint3korr(key)));
key=end;
break;
case HA_KEYTYPE_UINT24:
......
mysql-test/mysql-test-run.sh
View file @ 21e7c668
......@@ -369,6 +369,8 @@ mysql_install_db () {
error "Could not install slave test DBs"
exit 1
fi
# Give mysqld some time to die.
sleep $SLEEP_TIME
return 0
}
......
mysql-test/r/show_check.result
View file @ 21e7c668
......@@ -67,3 +67,16 @@ t1 0 PRIMARY 1 f1 A 1 NULL NULL
t1 0 PRIMARY 2 f2 A 3 NULL NULL
t1 0 PRIMARY 3 f3 A 9 NULL NULL
t1 0 PRIMARY 4 f4 A 18 NULL NULL
Table Create Table
t1 CREATE TEMPORARY TABLE `t1` (
`a` int(11) NOT NULL default '0'
) TYPE=MyISAM
Table Create Table
t2 CREATE TEMPORARY TABLE `t2` (
`a` int(11) NOT NULL default '0'
) TYPE=MyISAM
Table Create Table
t1 CREATE TABLE `t1` (
`test_set` set('val1','val2','val3') NOT NULL default '',
`name` char(20) default 'O''Brien'
) TYPE=MyISAM COMMENT='it''s a table'
mysql-test/r/shw000001.result deleted 100644 → 0
View file @ 97c39276
Table Create Table
t1 CREATE TABLE `t1` (
`test_set` set('val1','val2','val3') NOT NULL default '',
`name` char(20) default 'O''Brien'
) TYPE=MyISAM COMMENT='it''s a table'
mysql-test/t/show_check.test
View file @ 21e7c668
......@@ -48,3 +48,20 @@ show index from t1;
repair table t1;
show index from t1;
drop table t1;
#
# Test of SHOW CREATE
#
create temporary table t1 (a int not null);
show create table t1;
alter table t1 rename t2;
show create table t2;
drop table t2;
create table t1 (
test_set set( 'val1', 'val2', 'val3' ) not null default '',
name char(20) default 'O''Brien'
) comment = 'it\'s a table' ;
show create table t1 ;
drop table t1;
mysql-test/t/shw000001.test deleted 100644 → 0
View file @ 97c39276
use test;
drop table if exists t1;
create table t1 (
test_set set( 'val1', 'val2', 'val3' ) not null default '',
name char(20) default 'O''Brien'
) comment = 'it\'s a table' ;
show create table t1 ;
drop table t1;
scripts/make_binary_distribution.sh
View file @ 21e7c668
......@@ -62,9 +62,10 @@ do
done
for i in extra/comp_err extra/replace extra/perror extra/resolveip \
extra/my_print_defaults isam/isamchk isam/pack_isam myisam/myisamchk \
extra/my_print_defaults extra/resolve_stack_dump \
isam/isamchk isam/pack_isam myisam/myisamchk \
myisam/myisampack sql/mysqld sql/mysqlbinlog \
client/mysql sql/mysqld client/mysqlshow \
client/mysql sql/mysqld client/mysqlshow client/mysqlcheck \
client/mysqladmin client/mysqldump client/mysqlimport client/mysqltest \
client/.libs/mysql client/.libs/mysqlshow client/.libs/mysqladmin \
client/.libs/mysqldump client/.libs/mysqlimport client/.libs/mysqltest
......
sql/filesort.cc
View file @ 21e7c668
......@@ -49,7 +49,7 @@ typedef struct st_sort_param {
uint sort_length; /* Length of sortarg */
uint keys; /* Max antal nycklar / buffert */
uint ref_length; /* Length of record ref. */
ha_rows max_rows;
ha_rows max_rows,examined_rows;
TABLE *sort_form; /* For quicker make_sortkey */
SORT_FIELD *local_sortorder;
SORT_FIELD *end;
......@@ -91,7 +91,8 @@ static uint sortlength(SORT_FIELD *sortorder,uint length);
open a new file is opened */
ha_rows filesort(TABLE **table, SORT_FIELD *sortorder, uint s_length,
SQL_SELECT *select, ha_rows special, ha_rows max_rows)
SQL_SELECT *select, ha_rows special, ha_rows max_rows,
ha_rows *examined_rows)
{
int error;
uint memavl,old_memavl,maxbuffer,skr;
......@@ -113,6 +114,7 @@ ha_rows filesort(TABLE **table, SORT_FIELD *sortorder, uint s_length,
param.ref_length= table[0]->file->ref_length;
param.sort_length=sortlength(sortorder,s_length)+ param.ref_length;
param.max_rows= max_rows;
param.examined_rows=0;
if (select && select->quick)
{
......@@ -259,7 +261,7 @@ ha_rows filesort(TABLE **table, SORT_FIELD *sortorder, uint s_length,
my_error(ER_FILSORT_ABORT,MYF(ME_ERROR+ME_WAITTANG));
else
statistic_add(filesort_rows, records, &LOCK_status);
*examined_rows= param.examined_rows;
#ifdef SKIPP_DBUG_IN_FILESORT
DBUG_POP(); /* Ok to DBUG */
#endif
......@@ -367,6 +369,8 @@ static ha_rows find_all_keys(SORTPARAM *param, SQL_SELECT *select,
file->rnd_end();
DBUG_RETURN(HA_POS_ERROR); /* purecov: inspected */
}
if (error == 0)
param->examined_rows++;
if (error == 0 && (!select || select->skipp_record() == 0))
{
if (idx == param->keys)
......
sql/log.cc
View file @ 21e7c668
......@@ -825,10 +825,11 @@ bool MYSQL_LOG::write(THD *thd,const char *query, uint query_length,
{
/* For slow query log */
if (my_b_printf(&log_file,
"# Time: %lu Lock_time: %lu Rows_sent: %lu\n",
"# Time: %lu Lock_time: %lu Rows_sent: %lu Rows_examined: %lu\n",
(ulong) (current_time - query_start),
(ulong) (thd->time_after_lock - query_start),
(ulong) thd->sent_row_count) == (uint) -1)
(ulong) thd->sent_row_count,
(ulong) thd->examined_row_count) == (uint) -1)
tmp_errno=errno;
}
if (thd->db && strcmp(thd->db,db))
......
sql/mysql_priv.h
View file @ 21e7c668
......@@ -602,7 +602,8 @@ void init_read_record(READ_RECORD *info, THD *thd, TABLE *reg_form,
int use_record_cache, bool print_errors);
void end_read_record(READ_RECORD *info);
ha_rows filesort(TABLE **form,struct st_sort_field *sortorder, uint s_length,
SQL_SELECT *select, ha_rows special,ha_rows max_rows);
SQL_SELECT *select, ha_rows special,ha_rows max_rows,
ha_rows *examined_rows);
void change_double_for_sort(double nr,byte *to);
int get_quick_record(SQL_SELECT *select);
int calc_weekday(long daynr,bool sunday_first_day_of_week);
......
sql/mysqlbinlog.cc
View file @ 21e7c668
......@@ -58,6 +58,7 @@ static struct option long_options[] =
{"table", required_argument, 0, 't'},
{"user", required_argument, 0, 'u'},
{"version", no_argument, 0, 'V'},
{0, 0, 0, 0}
};
void sql_print_error(const char *format,...);
......
sql/mysqld.cc
View file @ 21e7c668
......@@ -1388,7 +1388,7 @@ static void *signal_hand(void *arg __attribute__((unused)))
if (!(opt_specialflag & SPECIAL_NO_PRIOR))
my_pthread_attr_setprio(&connection_attrib,INTERRUPT_PRIOR);
if (pthread_create(&tmp,&connection_attrib, kill_server_thread,
(void*) sig))
(void*) 0))
sql_print_error("Error: Can't create thread to kill server");
#else
kill_server((void*) sig); // MIT THREAD has a alarm thread
......
sql/sql_base.cc
View file @ 21e7c668
......@@ -1508,8 +1508,9 @@ TABLE *open_temporary_table(THD *thd, const char *path, const char *db,
tmp_table->reginfo.lock_type=TL_WRITE; // Simulate locked
tmp_table->tmp_table = 1;
tmp_table->table_cache_key=(char*) (tmp_table+1);
tmp_table->key_length= (uint) (strmov(strmov(tmp_table->table_cache_key,db)
+1, table_name)
tmp_table->key_length= (uint) (strmov((tmp_table->real_name=
strmov(tmp_table->table_cache_key,db)
+1), table_name)
- tmp_table->table_cache_key)+1;
int4store(tmp_table->table_cache_key + tmp_table->key_length,
thd->slave_proxy_id);
......
sql/sql_class.h
View file @ 21e7c668
......@@ -265,7 +265,7 @@ class THD :public ilink {
#endif
ulonglong next_insert_id,last_insert_id,current_insert_id;
ha_rows select_limit,offset_limit,default_select_limit,cuted_fields,
max_join_size,sent_row_count;
max_join_size, sent_row_count, examined_row_count;
table_map used_tables;
ulong query_id,version, inactive_timeout,options,thread_id;
ulong gemini_spin_retries;
......
sql/sql_parse.cc
View file @ 21e7c668
......@@ -2266,7 +2266,7 @@ mysql_init_query(THD *thd)
thd->lex.table_list.next= (byte**) &thd->lex.table_list.first;
thd->fatal_error=0; // Safety
thd->last_insert_id_used=thd->query_start_used=thd->insert_id_used=0;
thd->sent_row_count=0;
thd->sent_row_count=thd->examined_row_count=0;
DBUG_VOID_RETURN;
}
......
sql/sql_select.cc
View file @ 21e7c668
......@@ -265,7 +265,7 @@ mysql_select(THD *thd,TABLE_LIST *tables,List<Item> &fields,COND *conds,
join.join_tab=0;
join.tmp_table_param.copy_field=0;
join.sum_funcs=0;
join.send_records=join.found_records=0;
join.send_records=join.found_records=join.examined_rows=0;
join.tmp_table_param.end_write_records= HA_POS_ERROR;
join.first_record=join.sort_and_group=0;
join.select_options=select_options;
......@@ -784,6 +784,7 @@ mysql_select(THD *thd,TABLE_LIST *tables,List<Item> &fields,COND *conds,
error=do_select(&join,&fields,NULL,procedure);
err:
thd->examined_row_count=join.examined_rows;
thd->proc_info="end";
join.lock=0; // It's faster to unlock later
join_free(&join);
......@@ -867,6 +868,7 @@ make_join_statistics(JOIN *join,TABLE_LIST *tables,COND *conds,
table->reginfo.not_exists_optimize=0;
bzero((char*) table->const_key_parts, sizeof(key_part_map)*table->keys);
all_table_map|= table->map;
s->join=join;
if ((s->on_expr=tables->on_expr))
{
// table->maybe_null=table->outer_join=1; // Mark for send fields
......@@ -2219,6 +2221,7 @@ make_simple_join(JOIN *join,TABLE *tmp_table)
join_tab->ref.key = -1;
join_tab->not_used_in_distinct=0;
join_tab->read_first_record= join_init_read_record;
join_tab->join=join;
bzero((char*) &join_tab->read_record,sizeof(join_tab->read_record));
tmp_table->status=0;
tmp_table->null_row=0;
......@@ -3915,8 +3918,8 @@ bool create_myisam_from_heap(TABLE *table, TMP_TABLE_PARAM *param, int error,
table->file=0;
*table =new_table;
table->file->change_table_ptr(table);
thd->proc_info=save_proc_info;
thd->proc_info= (!strcmp(save_proc_info,"Copying to tmp table") ?
"Copying to tmp table on disk" : save_proc_info);
DBUG_RETURN(0);
err:
......@@ -4096,6 +4099,7 @@ sub_select(JOIN *join,JOIN_TAB *join_tab,bool end_of_records)
bool not_used_in_distinct=join_tab->not_used_in_distinct;
ha_rows found_records=join->found_records;
READ_RECORD *info= &join_tab->read_record;
join->examined_rows++;
do
{
......@@ -4483,6 +4487,7 @@ join_init_read_next_with_key(READ_RECORD *info)
return 0;
}
static int
join_init_read_last_with_key(JOIN_TAB *tab)
{
......@@ -5204,6 +5209,7 @@ create_sort_index(JOIN_TAB *tab,ORDER *order,ha_rows select_limit)
{
SORT_FIELD *sortorder;
uint length;
ha_rows examined_rows;
TABLE *table=tab->table;
SQL_SELECT *select=tab->select;
DBUG_ENTER("create_sort_index");
......@@ -5242,12 +5248,13 @@ create_sort_index(JOIN_TAB *tab,ORDER *order,ha_rows select_limit)
}
}
table->found_records=filesort(&table,sortorder,length,
select, 0L, select_limit);
select, 0L, select_limit, &examined_rows);
delete select; // filesort did select
tab->select=0;
tab->select_cond=0;
tab->type=JT_ALL; // Read with normal read_record
tab->read_first_record= join_init_read_record;
tab->join->examined_rows+=examined_rows;
if (table->key_read) // Restore if we used indexes
{
table->key_read=0;
......
sql/sql_select.h
View file @ 21e7c668
......@@ -102,6 +102,7 @@ typedef struct st_join_table {
bool cached_eq_ref_table,eq_ref_table,not_used_in_distinct;
TABLE_REF ref;
JOIN_CACHE cache;
JOIN *join;
} JOIN_TAB;
......@@ -151,7 +152,7 @@ class JOIN {
uint send_group_parts;
bool sort_and_group,first_record,full_join,group, no_field_update;
table_map const_table_map,outer_join;
ha_rows send_records,found_records;
ha_rows send_records,found_records,examined_rows,row_limit;
POSITION positions[MAX_TABLES+1],best_positions[MAX_TABLES+1];
double best_read;
List<Item> *fields;
......
sql/sql_show.cc
View file @ 21e7c668
......@@ -781,6 +781,9 @@ store_create_info(THD *thd, TABLE *table, String *packet)
List<Item> field_list;
char tmp[MAX_FIELD_WIDTH];
String type(tmp, sizeof(tmp));
if (table->tmp_table)
packet->append("CREATE TEMPORARY TABLE ", 23);
else
packet->append("CREATE TABLE ", 13);
append_identifier(thd,packet,table->real_name);
packet->append(" (\n", 3);
......
sql/sql_table.cc
View file @ 21e7c668
......@@ -1633,6 +1633,7 @@ copy_data_between_tables(TABLE *from,TABLE *to,
TABLE_LIST tables;
List<Item> fields;
List<Item> all_fields;
ha_rows examined_rows;
DBUG_ENTER("copy_data_between_tables");
if (!(copy= new Copy_field[to->fields]))
......@@ -1668,7 +1669,8 @@ copy_data_between_tables(TABLE *from,TABLE *to,
if (setup_order(thd, &tables, fields, all_fields, order) ||
!(sortorder=make_unireg_sortorder(order, &length)) ||
(from->found_records = filesort(&from, sortorder, length,
(SQL_SELECT *) 0, 0L, HA_POS_ERROR))
(SQL_SELECT *) 0, 0L, HA_POS_ERROR,
&examined_rows))
== HA_POS_ERROR)
goto err;
};
......
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