Bug #37885: row_search_for_mysql may gap lock unnecessarily with SQL comments in query


Detailed revision comments:

r2603 | marko | 2008-08-21 16:25:05 +0300 (Thu, 21 Aug 2008) | 10 lines
branches/5.1: Identify SELECT statements by thd_sql_command() == SQLCOM_SELECT
instead of parsing the query string.  This fixes MySQL Bug #37885 without
us having to implement lexical analysis of SQL comments in yet another place.

thd_is_select(): A new predicate.

row_search_for_mysql(): Use thd_is_select().

Approved by Heikki.

Fix race condition which could result in freeing a struct that is
still in use by another thread.


Detailed revision comments:

r2537 | inaam | 2008-07-15 20:46:03 +0300 (Tue, 15 Jul 2008) | 12 lines
branches/5.1   issue# 4

Fixed a timing hole where a thread dropping an index can free the
in-memory index struct while another thread is still using
that structure to remove entries from adaptive hash index belonging
to one of the pages that belongs to the index being dropped.

The fix is to have a reference counter in the index struct and to
wait for this counter to drop to zero beforing freeing the struct.

Reviewed by: Heikki

r2543 | inaam | 2008-07-22 18:57:43 +0300 (Tue, 22 Jul 2008) | 7 lines
branches/5.1:

Removed UNIV_INLINE qualifier from btr_search_info_get_ref_count().
Otherwise compilation failed on non-debug builds.

Pointed by: Vasil

Bug #36149: Read buffer overflow in srv0start.c found during "make test"


Detailed revision comments:

r2485 | vasil | 2008-05-28 16:01:14 +0300 (Wed, 28 May 2008) | 9 lines
branches/5.1:

Fix Bug#36149 Read buffer overflow in srv0start.c found during "make test"

Use strncmp(3) instead of memcmp(3) to avoid reading past end of the string
if it is empty (*str == '\0'). This bug is _not_ a buffer overflow.

Discussed with:	Sunny (via IM)

Bug #36819: ut_usectime does not handle errors from gettimeofday


Detailed revision comments:

r2480 | vasil | 2008-05-27 11:40:07 +0300 (Tue, 27 May 2008) | 11 lines
branches/5.1:

Fix Bug#36819 ut_usectime does not handle errors from gettimeofday

by retrying gettimeofday() several times if it fails in ut_usectime().
If it fails on all calls then return error to the caller to be handled
at higher level.

Update the variable innodb_row_lock_time_max in SHOW STATUS output only
if ut_usectime() was successful.

Bug #11894: innodb_file_per_table crashes w/ Windows .sym symbolic link hack


Detailed revision comments:

r2466 | calvin | 2008-05-20 01:37:14 +0300 (Tue, 20 May 2008) | 12 lines
branches/5.1:

Fix Bug#11894 innodb_file_per_table crashes w/ Windows .sym symbolic
link hack

The crash was due to un-handled error 3 (path not found). In the case
of file per table, change the call to os_file_handle_error_no_exit()
from os_file_handle_error(). Also, checks for full path pattern during
table create (Windows only), which is used in symbolic link and temp
table creation.

Approved by:	Heikki

Changes to plug.in structure, some INNODB_CFLAGS improvements for better
maintenance, and some comments and whitespace changes.

Detailed revision comments:

r2433 | vasil | 2008-04-30 12:02:35 +0300 (Wed, 30 Apr 2008) | 5 lines
branches/5.1:

Add vim modeline to hint it that plug.in is a config file
so it can be colorized.
r2429 | vasil | 2008-04-30 11:19:06 +0300 (Wed, 30 Apr 2008) | 10 lines
branches/5.1:

* Use INNODB_CFLAGS insead of cluttering CFLAGS with InnoDB specific
  flags. CFLAGS are used to compile every file in the MySQL source tree.

* Add INNODB_DYNAMIC_CFLAGS to the flags of the dynamic plugin and use
  -prefer-non-pic to make the dynamic plugin faster on i386.

Approved by:	Sunny

r2430 | vasil | 2008-04-30 11:48:35 +0300 (Wed, 30 Apr 2008) | 8 lines
branches/5.1:

Use CFLAGS instead of INNODB_CFLAGS to avoid having incompatible flags
inserted in CFLAGS and INNODB_CFLAGS and to avoid compiling mysql and
innodb with different flags.

Discussed with:	Sunny

r2431 | vasil | 2008-04-30 11:54:49 +0300 (Wed, 30 Apr 2008) | 4 lines
branches/5.1:

Fix r2430, it should be CFLAGS="$CFLAGS ..." not CFLAGS="..."

r2432 | vasil | 2008-04-30 11:58:38 +0300 (Wed, 30 Apr 2008) | 4 lines
branches/5.1:

Non-functional change: use tabs for indentation in plug.in.

r2436 | vasil | 2008-04-30 19:15:46 +0300 (Wed, 30 Apr 2008) | 7 lines
branches/5.1:

Non-functional white space change in Makefile.am:
Use tabs for indentation and be consistent about spaces around the
equal sign.

Bug #36169: create innodb compressed table with too large row size crashed


Revision comments:

r2422 | vasil | 2008-04-24 16:00:30 +0300 (Thu, 24 Apr 2008) | 11 lines
branches/5.1:

Fix Bug#36169 create innodb compressed table with too large row size crashed

Sometimes it is possible that
row_drop_table_for_mysql(index->table_name, trx, FALSE); is invoked in
row_create_index_for_mysql() when the index object is freed so copy the
table name to a safe place beforehand and use the copy.

Approved by:	Sunny

Bug #35537: Innodb doesn't increment handler_update and handler_delete


Detailed revision comments:

r2388 | vasil | 2008-03-27 14:02:34 +0200 (Thu, 27 Mar 2008) | 7 lines
branches/5.1:

Swap the order in which mysql_thd, mysql_query_str and *mysql_query_str
are checked for non-NULL.

Suggested by:	Marko

r2421 | calvin | 2008-04-24 15:32:30 +0300 (Thu, 24 Apr 2008) | 6 lines
branches/5.1: Fix bug#35537 - Innodb doesn't increment handler_update
and handler_delete

Add the calls to ha_statistic_increment() in ha_innobase::delete_row()
and ha_innobase::update_row().

code changes in 5.1+

branches/5.0   bug#39483 InnoDB hang on adaptive hash because of out
of order ::open() call by MySQL

Under some conditions MySQL calls ::open with search_latch leading
to a deadlock as we try to acquire dict_sys->mutex inside ::open
breaking the latching order. The fix is to release search_latch.

Reviewed by: Heikki

This fixes Bug#36149: Read buffer overflow in srv0start.c found during "make
test"

Per-revision comments:

r2484 | vasil | 2008-05-28 15:32:48 +0300 (Wed, 28 May 2008) | 9 lines

Fix Bug#36149 Read buffer overflow in srv0start.c found during "make test"

Use strncmp(3) instead of memcmp(3) to avoid reading past end of the string
if it is empty (*str == '\0'). This bug is _not_ a buffer overflow.

Discussed with:	Sunny (via IM)

r2538 | inaam | 2008-07-15 21:24:02 +0300 (Tue, 15 Jul 2008) | 15 lines

Fix of issue# 4

Fixed a timing hole where a thread dropping an index can free the
in-memory index struct while another thread is still using
that structure to remove entries from adaptive hash index belonging
to one of the pages that belongs to the index being dropped.

The fix is to have a reference counter in the index struct and to
wait for this counter to drop to zero beforing freeing the struct.

Reviewed by: Heikki


r2544 | inaam | 2008-07-22 18:58:11 +0300 (Tue, 22 Jul 2008) | 8 lines

Removed UNIV_INLINE qualifier from btr_search_info_get_ref_count().
Otherwise compilation failed on non-debug builds.

Pointed by: Vasil

not handle errors from gettimeofday".

r2475 | vasil | 2008-05-22 19:35:30 +0300 (Thu, 22 May 2008) | 13 lines

Fix by retrying gettimeofday() several times if it fails in ut_usectime().
If it fails on all calls then return error to the caller to be handled
at higher level.

Update the variable innodb_row_lock_time_max in SHOW STATUS output only
if ut_usectime() was successful.

Added KEY_BLOCK_SIZE option to I_S.TABLES.CREATE_OPTIONS field

Bug#37671 crash on prepared statement + cursor + geometry + too many open files!
if mysql_execute_command() returns error then free materialized_cursor object.
is_rnd_inited is added to satisfy rnd_end() assertion
(handler may be uninitialized in some cases)

Removed values with more than 15 significant digits from the test case. Results of 
reading/printing such values using system library functions depend on implementation 
and thus are not portable.

Problem:
 XML syntax parser allowed to use quoted strings as attribute names,
 and tried to put them into parser state stack instead of identifiers.
 After that parser failed, if quoted string contained some slash characters.
Fix:
 - Disallowing quoted strings in regular tags.
 - Allowing quoted string in DOCTYPE declararion, but
 don't push it into parse state stack (just skip it).

Field_varstring::store
      
The code that temporary saved the bitmaps of the read set and the write set so that
it can set it to all columns for debug purposes was not expecting that the
table->read_set and table->write_set can be the same. And was always saving both in 
sequence.
As a result the original value was never restored.
Fixed by saving & restoring the original value only once if the two sets are the
same (in a special set of functions).

no conflicts