memory corruptions.
The right pointer field of the SEL_ARG structure was not
initialized in the constructor and sometimes that led to
server crashes.
There is no testcase because the bug occurs only when
uninitialized memory has particular values, which can't be
re-created in the test suite.
sql/opt_range.cc:
Fixed bug #32403.
The eq_tree function requires that SEL_ARG::left and
SEL_ARG::right are equal to null pointer if SEL_ARG
type is MAYBE_KEY, but SEL_ARG::right was not initialized
and contained garbage.
memory corruptions.
The right pointer field of the SEL_ARG structure was not
initialized in the constructor and sometimes that led to
server crashes.
There is no testcase because the bug occurs only when
uninitialized memory has particular values, which can't be
re-created in the test suite.
into hynda.mysql.fi:/home/my/mysql-5.1-marvel
BitKeeper/etc/ignore:
auto-union
client/mysqldump.c:
Auto merged
include/my_sys.h:
Auto merged
libmysql/CMakeLists.txt:
Auto merged
libmysql/Makefile.shared:
Auto merged
mysql-test/lib/mtr_report.pl:
Auto merged
sql/ha_partition.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
storage/myisam/mi_dynrec.c:
Auto merged
Fix for the bug#31048 for 64bit platforms.
subselect.test, subselect.result:
Corrected text case for the bug#31048.
mysql-test/t/subselect.test:
Corrected text case for the bug#31048.
mysql-test/r/subselect.result:
Corrected text case for the bug#31048.
sql/opt_range.cc:
Fix for the bug#31048 for 64bit platforms.
This bug is actually two. The first one manifests itself on an EXPLAIN
SELECT query with nested subqueries that employs the filesort algorithm.
The whole SELECT under explain is marked as UNCACHEABLE_EXPLAIN to preserve
some temporary structures for explain. As a side-effect of this values of
nested subqueries weren't cached and subqueries were re-evaluated many
times. Each time buffer for filesort was allocated but wasn't freed because
freeing occurs at the end of topmost SELECT. Thus all available memory was
eaten up step by step and OOM event occur.
The second bug manifests itself on SELECT queries with conditions where
a subquery result is compared with a key field and the subquery itself also
has such condition. When a long chain of such nested subqueries is present
the stack overrun occur. This happens because at some point the range optimizer
temporary puts the PARAM structure on the stack. Its size if about 8K and
the stack is exhausted very fast.
Now the subselect_single_select_engine::exec function allows subquery result
caching when the UNCACHEABLE_EXPLAIN flag is set.
Now the SQL_SELECT::test_quick_select function calls the check_stack_overrun
function for stack checking purposes to prevent server crash.
mysql-test/t/subselect.test:
Added a test case for the bug#31048: Many nested subqueries may cause server crash.
mysql-test/r/subselect.result:
Added a test case for the bug#31048: Many nested subqueries may cause server crash.
sql/opt_range.cc:
Bug#31048: Many nested subqueries may cause server crash.
Now the SQL_SELECT::test_quick_select function calls the check_stack_overrun
function for stack checking purposes to preven server crash.
sql/item_subselect.cc:
Bug31048: Many nested subqueries may cause server crash.
Now the subselect_single_select_engine::exec function allows subquery result
caching when the UNCACHEABLE_EXPLAIN flag is set.
This bug is actually two. The first one manifests itself on an EXPLAIN
SELECT query with nested subqueries that employs the filesort algorithm.
The whole SELECT under explain is marked as UNCACHEABLE_EXPLAIN to preserve
some temporary structures for explain. As a side-effect of this values of
nested subqueries weren't cached and subqueries were re-evaluated many
times. Each time buffer for filesort was allocated but wasn't freed because
freeing occurs at the end of topmost SELECT. Thus all available memory was
eaten up step by step and OOM event occur.
The second bug manifests itself on SELECT queries with conditions where
a subquery result is compared with a key field and the subquery itself also
has such condition. When a long chain of such nested subqueries is present
the stack overrun occur. This happens because at some point the range optimizer
temporary puts the PARAM structure on the stack. Its size if about 8K and
the stack is exhausted very fast.
Now the subselect_single_select_engine::exec function allows subquery result
caching when the UNCACHEABLE_EXPLAIN flag is set.
Now the SQL_SELECT::test_quick_select function calls the check_stack_overrun
function for stack checking purposes to prevent server crash.
into hynda.mysql.fi:/home/my/mysql-5.1-marvel
include/my_sys.h:
Auto merged
sql/ha_partition.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/table.cc:
Auto merged
storage/myisam/ft_boolean_search.c:
Auto merged
storage/myisam/ft_parser.c:
Auto merged
storage/myisam/mi_check.c:
Auto merged
into mysql.com:/home/gluh/MySQL/Merge/5.1-opt
BitKeeper/etc/ignore:
auto-union
mysql-test/r/events_bugs.result:
Auto merged
mysql-test/r/partition.result:
Auto merged
mysql-test/r/ps_2myisam.result:
Auto merged
mysql-test/r/ps_3innodb.result:
Auto merged
mysql-test/r/ps_4heap.result:
Auto merged
mysql-test/r/ps_5merge.result:
Auto merged
mysql-test/r/sp.result:
Auto merged
mysql-test/t/partition.test:
Auto merged
mysql-test/t/subselect.test:
Auto merged
mysql-test/t/variables.test:
Auto merged
sql/field.cc:
Auto merged
sql/ha_partition.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_subselect.cc:
Auto merged
sql/item_timefunc.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_partition.cc:
Auto merged
sql/sql_plugin.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_udf.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/share/errmsg.txt:
Auto merged
tests/mysql_client_test.c:
Auto merged
mysql-test/r/select.result:
manual merge
mysql-test/t/select.test:
manual merge
Buffer overflow due to wrong key length in partitioning
Changed to the correct key_length function.
sql/opt_range.cc:
Bug#31705 Partitions: crash if varchar length > 65530
Problem: buffer overflow due to wrong key-length
Fix: Using correct key_length function
mysql-test/r/partition_datatype.result:
Bug#31705 Partitions: crash if varchar length > 65530
New test-result case for testing all column types
used in key-partitioning.
(For verifying correct key-length use)
mysql-test/t/partition_datatype.test:
Bug#31705 Partitions: crash if varchar length > 65530
New test case for testing all column types
used in key-partitioning.
(For verifying correct key-length used)
into hynda.mysql.fi:/home/my/mysql-5.1-marvel
BitKeeper/etc/ignore:
auto-union
client/mysql_upgrade.c:
Auto merged
client/mysqlcheck.c:
Auto merged
client/mysqldump.c:
Auto merged
client/mysqlimport.c:
Auto merged
client/mysqlshow.c:
Auto merged
client/mysqlslap.c:
Auto merged
client/mysqltest.c:
Auto merged
include/my_global.h:
Auto merged
include/my_sys.h:
Auto merged
mysys/mf_keycache.c:
Auto merged
mysys/my_init.c:
Auto merged
mysys/safemalloc.c:
Auto merged
sql/ha_partition.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/log.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/table.cc:
Auto merged
sql/table.h:
Auto merged
sql/unireg.cc:
Auto merged
storage/myisam/ha_myisam.cc:
Auto merged
storage/myisam/mi_write.c:
Auto merged
sql/sql_yacc.yy:
Merged with 5.1 main tree.
Calculating the estimated number of records for a range scan may take a
significant time, and it was impossible for a user to interrupt that
process by killing the connection or the query.
Fixed by checking the thread's 'killed' status in check_quick_keys() and
interrupting the calculation process if it is set to a non-zero value.
sql/opt_range.cc:
Check the thread's 'killed' status in check_quick_keys() and
interrupt the calculation process if it is set to a non-zero value.
Calculating the estimated number of records for a range scan may take a
significant time, and it was impossible for a user to interrupt that
process by killing the connection or the query.
Fixed by checking the thread's 'killed' status in check_quick_keys() and
interrupting the calculation process if it is set to a non-zero value.
myisam/mi_write.c:
type conversion fixed
myisam/sort.c:
type conversion fixed
sql/ha_federated.cc:
type conversion fixed
sql/ha_heap.cc:
type conversion fixed
sql/ha_innodb.cc:
type conversion fixed
sql/ha_myisam.cc:
type conversion fixed
sql/opt_range.cc:
type conversion fixed
sql/sql_map.cc:
type conversion fixed
sql/sql_select.cc:
type conversion fixed
sql/sql_update.cc:
type conversion fixed
into polly.(none):/home/kaa/src/maint/mysql-5.1-maint
include/my_sys.h:
Auto merged
libmysql/Makefile.shared:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_cmpfunc.h:
Auto merged
sql/opt_range.cc:
Auto merged
sql/records.cc:
Auto merged
sql/sql_array.h:
Auto merged
sql/sql_help.cc:
Auto merged
sql/sql_select.cc:
Auto merged
storage/myisam/ft_boolean_search.c:
Auto merged
storage/myisam/ft_nlq_search.c:
Auto merged
storage/myisam/myisampack.c:
Auto merged
mysys/mf_keycache.c:
Manual merge.
mysys/mf_sort.c:
Manual merge.
mysys/my_lib.c:
Manual merge.
mysys/queues.c:
Manual merge.
sql/sql_acl.cc:
Manual merge.
sql/sql_table.cc:
Manual merge.
storage/csv/ha_tina.cc:
Manual merge.
storage/myisam/sort.c:
Manual merge.
CPUs / Intel's ICC compile
The bug is a combination of two problems:
1. IA64/ICC MySQL binaries use glibc's qsort(), not the one in mysys.
2. The order relation implemented by join_tab_cmp() is not transitive,
i.e. it is possible to choose such a, b and c that (a < b) && (b < c)
but (c < a). This implies that result of a sort using the relation
implemented by join_tab_cmp() depends on the order in which
elements are compared, i.e. the result is implementation-specific. Since
choose_plan() uses qsort() to pre-sort the
join tables using join_tab_cmp() as a compare function, the results of
the sorting may vary depending on qsort() implementation.
It is neither possible nor important to implement a better ordering
algorithm in join_tab_cmp(). Therefore the only way to fix it is to
force our own qsort() to be used by renaming it to my_qsort(), so we don't depend
on linker to decide that.
This patch also "fixes" bug #20530: qsort redefinition violates the
standard.
include/my_sys.h:
Renamed qsort() and qsort2() to my_qsort() and my_qsort2(). Since
previously we relied on stdlib.h to provide a declaration for qsort(), a
separate declaration for my_qsort() is now required.
libmysql/Makefile.shared:
Added mf_qsort.c to libmysql, since my_lib.c now uses my_qsort() instead of qsort().
myisam/ft_boolean_search.c:
Replaced qsort2() with my_qsort2().
myisam/ft_nlq_search.c:
Replaced qsort2() with my_qsort2().
myisam/myisampack.c:
Replaced qsort() with my_qsort().
myisam/sort.c:
Replaced qsort2() with my_qsort2().
mysys/mf_keycache.c:
Replaced qsort() with my_qsort().
mysys/mf_qsort.c:
Renamed qsort() to my_qsort() and qsort2() to my_qsort2().
mysys/mf_sort.c:
Replaced qsort2() with my_qsort2().
mysys/my_lib.c:
Replaced qsort() with my_qsort().
mysys/queues.c:
Replaced qsort2() with my_qsort2().
sql/item_cmpfunc.cc:
Replaced qsort2() with my_qsort2().
sql/item_cmpfunc.h:
Replaced qsort2() with my_qsort2().
sql/opt_range.cc:
Replaced qsort() with my_qsort().
sql/records.cc:
Replaced qsort() with my_qsort().
sql/sql_acl.cc:
Replaced qsort() with my_qsort().
sql/sql_array.h:
Replaced qsort() with my_qsort().
sql/sql_help.cc:
Replaced qsort() with my_qsort().
sql/sql_select.cc:
Replaced qsort() with my_qsort().
sql/examples/ha_tina.cc:
Replaced qsort() with my_qsort().
sql/sql_table.cc:
Replaced qsort() with my_qsort().
CPUs / Intel's ICC compile
The bug is a combination of two problems:
1. IA64/ICC MySQL binaries use glibc's qsort(), not the one in mysys.
2. The order relation implemented by join_tab_cmp() is not transitive,
i.e. it is possible to choose such a, b and c that (a < b) && (b < c)
but (c < a). This implies that result of a sort using the relation
implemented by join_tab_cmp() depends on the order in which
elements are compared, i.e. the result is implementation-specific. Since
choose_plan() uses qsort() to pre-sort the
join tables using join_tab_cmp() as a compare function, the results of
the sorting may vary depending on qsort() implementation.
It is neither possible nor important to implement a better ordering
algorithm in join_tab_cmp(). Therefore the only way to fix it is to
force our own qsort() to be used by renaming it to my_qsort(), so we don't depend
on linker to decide that.
This patch also "fixes" bug #20530: qsort redefinition violates the
standard.
- Reserver namespace and place in frm for TABLE_CHECKSUM and PAGE_CHECKSUM create options
- Added syncing of directory when creating .frm files
- Portability fixes
- Added missing cast that could cause bugs
- Code cleanups
- Made some bit functions inline
- Moved things out of myisam.h to my_handler.h to make them more accessable
- Renamed some myisam variables and defines to make them more globaly usable (as they are used outside of MyISAM)
- Fixed bugs in error conditions
- Use compiler time asserts instead of run time
- Fixed indentation
HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP as the old name was wrong
(Added a define for old value to ensure we don't break any old code)
Added HA_EXTRA_PREPARE_FOR_RENAME as a signal for rename (before we used a DROP signal which is wrong)
- Initialize error messages early to get better errors when mysqld or an engine fails to start
- Fix windows bug that query_performance_frequency was not initialized if registry code failed
- thread_stack -> my_thread_stack_size
BitKeeper/etc/ignore:
added libmysqld/scheduler.cc libmysqld/sql_connect.cc libmysqld/sql_tablespace.cc
include/Makefile.am:
Added my_bit.h
include/m_string.h:
Added bzero_if_purify() to simplify code
include/my_base.h:
Reserve options for the future
Added HA_OPTION_NULL_FIELDS, HA_OPTION_PAGE_CHECKSUM, HA_CREATE_PAGE_CHECKSUM
Added new error message HA_ERR_NEW_FILE
Added optional new row type BLOCK_RECORD
Renamed HA_EXTRA_PREPARE_FOR_DELETE to HA_EXTRA_PREPARE_FOR_DROP
Added HA_EXTRA_PREARE_FOR_RENAME to inform handler we will do a rename
(Added define to make things compatible until 6.0)
Moved invalidator_by_filename form myisam.h
include/my_dbug.h:
Poirtablity fix
include/my_global.h:
Added helper macros STATIC_INLINE and MY_ERRPTR
Added NEED_EXPLICIT_SYNC_DIR
include/my_handler.h:
Added missing casts
Moved some constants and macros out from myisam.h to make these generally available
Renamed mi_compare_text() to ha_compare_text() as this function is not myisam specific
Renamed mi_portable_sizeof_char_ptr to portable_sizeof_char_ptr
Added registering of handler messages for better error reporting during startup
include/my_sys.h:
Added my_sync_dir() and my_sync_dir_by_file()
More comments
Some indentation fixes
Moved bit functions to my_bit.h
Added prototype for crc32()
include/myisam.h:
Moved things from here to my_handler.h to make them more accessable
libmysql/Makefile.shared:
Added my_sync
mysys/array.c:
Fixed indentation and spelling errors
Split set_dynamic() to two functions
Added allocate_dynamic() as a new visiable function
(no new code, only refactoring)
mysys/mf_iocache.c:
More DBUG
mysys/mf_keycache.c:
More explicite ASSERT
Removed some casts
Fixed indentation
mysys/mf_tempfile.c:
Fixed bug with possible dangling file descriptor
mysys/my_atomic.c:
Use compile time asserts instead of run time
mysys/my_bit.c:
Make most bit functions inline
mysys/my_bitmap.c:
Added my_bit.h
mysys/my_compress.c:
Fixed indentation
mysys/my_create.c:
Added my_sync_by_dir()
mysys/my_delete.c:
Added my_sync_by_dir()
mysys/my_error.c:
init_glob_errs() is now done in my_init()
mysys/my_handler.c:
mi_compare_text() -> ha_compare_text() as this is not MyISAM specific
Added functions to initialize handler error messages
Fixed indentation
More clear usage of include files
mysys/my_init.c:
Added my_thread_stack_size to be used by other programs
Ensure that global error messages are always initialized
Fix windows bug that query_performance_frequency was not initialized if registry code failed
mysys/my_open.c:
More comments
Removed duplicate code
mysys/my_pread.c:
Ensure that my_errno is set even if errno is 0
mysys/my_realloc.c:
Added comment
mysys/my_rename.c:
Added syncing of directories
mysys/my_symlink.c:
Added my_sync_by_dir()
mysys/my_sync.c:
Added my_sync_dir()
On recent Mac OS X, fcntl(F_FULLFSYNC) is recommended over fsync()
(see "man fsync" on Mac OS X 10.3).
my_sync_dir(): to sync a directory after a file creation/deletion/
renaming; can be called directly or via MY_SYNC_DIR in my_create/
my_delete/my_rename(). No-op except on Linux (see "man fsync" on Linux).
my_sync_dir_from_file(): same as above, just more practical when the
caller has a file name but no directory name ready.
Should the #warning even be a #error? I mean do we want to release
binaries which don't guarantee any durability?
mysys/safemalloc.c:
Added sf_malloc_report_allocated() (Debugging aid)
sql/gen_lex_hash.cc:
Remove inline for big function
sql/ha_partition.cc:
HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP
prepare_for_delete -> prepare_for_rename() as this is the the time this function is called
sql/ha_partition.h:
prepare_for_delete -> prepare_for_rename() as this is the the time this function is called
sql/handler.cc:
ha_init_errors() is now called at startup before plugins
This allows us to get better error messages
sql/handler.h:
Reserve enum value for Maria
Add future proof enum for page checksums
sql/item_func.cc:
Include my_bit.h
sql/lex.h:
Added future proof CREATE table options
sql/log.cc:
Added comment
sql/mysql_priv.h:
thread_stack moved to mysys
sql/mysqld.cc:
thread_stack moved to mysys
thread_stack -> my_thread_stack_size
Initialize myisam key caches before plugins starts
Initialize error to allow storage engine to give better error messages if init failes.
Fixed indentation
Group all MyISAM options together
Added new status variable 'Opened_table_definitions' to allow one to monitor if table definition cache is too small
Clarified some option help messages
sql/opt_range.cc:
Removed wrong usage of SAFE_MODE (this disabled key usage for UPDATES, which was never the intention)
Removed print if total cost in a place where it didn't have any usable value
sql/set_var.cc:
thread_stack -> my_thread_stack
sql/sql_class.cc:
Intialize transaction object properly
sql/sql_parse.cc:
thread_stack -> my_thread_stack
sql/sql_select.cc:
Include my_bit.h
mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
sql/sql_show.cc:
Simplify handling of ha_choice variables
Added future safe PAGE_CHECKSUM option
Addid missing 'transactional=#' in information schema
sql/sql_table.cc:
HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_FORCE_REOPEN when doing reopen
HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_RENAME when doing rename
Removed not needed initialization
sql/sql_test.cc:
thread_stack -> my_thread_stack
sql/sql_yacc.yy:
Simplify handling of ha_choice variables
Added future proof create table options TABLE_CHECKSUM=# & PAGE_CHECKSUM=#
sql/table.cc:
Save page_checksum in .frm
sql/table.h:
Added variable to hold create table option PAGE_CHECKSUM
sql/unireg.cc:
Added syncing of directories
storage/myisam/ft_boolean_search.c:
mi_compare_text() -> ha_compare_text()
storage/myisam/ft_eval.c:
mi_compare_text() -> ha_compare_text()
storage/myisam/ft_nlq_search.c:
mi_compare_text() -> ha_compare_text()
storage/myisam/ft_parser.c:
mi_compare_text() -> ha_compare_text()
storage/myisam/ft_stopwords.c:
mi_compare_text() -> ha_compare_text()
storage/myisam/ft_test1.c:
mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/ft_update.c:
mi_compare_text() -> ha_compare_text()
storage/myisam/ha_myisam.cc:
Include my_bit.h
storage/myisam/mi_check.c:
MI_MAX_POSSIBLE_KEY_BUFF -> HA_MAX_POSSIBLE_KEY_BUFF
mi_compare_text() -> ha_compare_text()
Added BLOCK_RECORD to avoid compiler warnings
storage/myisam/mi_checksum.c:
mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_create.c:
MI_MAX_POSSIBLE_KEY -> HA_MAX_POSSIBLE_KEY
MI_MAX_KEY_BLOCK_SIZE -> HA_MAX_KEY_BLOCK_SIZE
mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_dynrec.c:
mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_extra.c:
HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP
storage/myisam/mi_open.c:
MI_MAX_POSSIBLE_KEY -> HA_MAX_POSSIBLE_KEY
mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_packrec.c:
mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_range.c:
mi_compare_text -> ha_compare_text
storage/myisam/mi_test1.c:
mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_test2.c:
mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_unique.c:
mi_compare_text() -> ha_compare_text()
storage/myisam/mi_write.c:
mi_compare_text() -> ha_compare_text()
storage/myisam/myisamchk.c:
Include my_bit.h
storage/myisam/myisamdef.h:
Moved store_key_length_inc to handler.h
storage/myisam/myisampack.c:
mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/sp_test.c:
mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisammrg/ha_myisammrg.cc:
HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP
include/my_bit.h:
New BitKeeper file ``include/my_bit.h''
- Reserver namespace and place in frm for TABLE_CHECKSUM and PAGE_CHECKSUM create options
- Added syncing of directory when creating .frm files
- Portability fixes
- Added missing cast that could cause bugs
- Code cleanups
- Made some bit functions inline
- Moved things out of myisam.h to my_handler.h to make them more accessable
- Renamed some myisam variables and defines to make them more globaly usable (as they are used outside of MyISAM)
- Fixed bugs in error conditions
- Use compiler time asserts instead of run time
- Fixed indentation
HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP as the old name was wrong
(Added a define for old value to ensure we don't break any old code)
Added HA_EXTRA_PREPARE_FOR_RENAME as a signal for rename (before we used a DROP signal which is wrong)
- Initialize error messages early to get better errors when mysqld or an engine fails to start
- Fix windows bug that query_performance_frequency was not initialized if registry code failed
- thread_stack -> my_thread_stack_size
The `SELECT col FROM t WHERE col NOT IN (col, ...) GROUP BY col'
crashed in the range optimizer.
The get_func_mm_tree function has been modified to check the
Item_func_in::array field for the NULL value before using of that
value.
sql/opt_range.cc:
Fixed bug #31075.
The get_func_mm_tree function has been modified to check the
Item_func_in::array field for the NULL value before using of that
value.
mysql-test/t/func_in.test:
Added test case for bug #31075.
mysql-test/r/func_in.result:
Added test case for bug #31075.
The `SELECT col FROM t WHERE col NOT IN (col, ...) GROUP BY col'
crashed in the range optimizer.
The get_func_mm_tree function has been modified to check the
Item_func_in::array field for the NULL value before using of that
value.
in get_index_for_order(), don't walk over the end of the index key parts
when matching index description and needed ordering.
mysql-test/r/delete.result:
BUG#30385: Testcase
mysql-test/t/delete.test:
BUG#30385: Testcase
