sql/mysqld.cc:
Explicit type casting required by windows x64 compiler.
storage/xtradb/include/srv0srv.h:
Parameters should be declared as ulong.
storage/xtradb/srv/srv0srv.c:
Parameters should be declared as ulong.
This makes them suitable for tar archices right away and also are easier to copy
Don't disable federated storage engine by default.
Don't allow one to disable the Maria storage engine if it's used for temp tables
BUILD/SETUP.sh:
Compile by default MySQL clients with libmysqldclient.a (not .so)
This makes them suitable for tar archices right away and also are easier to copy
scripts/make_binary_distribution.sh:
Abort it clients are compiled with the shared libmysqlclient.so library
sql/mysqld.cc:
Don't call kill_mysql() if signal handler is not setup (causes a core dump).
This is only relevant when starting with --gdb.
sql/sql_plugin.cc:
Don't disable federated storage engine by default.
Don't allow one to disable the Maria storage engine if it's used for temp tables
If --log-bin is set to a directory name with the trailing 'FN_LIBCHAR',
which will be '/' on Unix like systems, and '\\' on Windows like systems.
the basename of the binlog is empty so that the created files named
'.000001' and '.index'. It is not expected.
The same thing happened to --log-bin-index, --relay-log and
--relay-log-index options.
To resolve the problem, in these cases the program should report an error
and abort.
sql/mysqld.cc:
Added a check for the value of the --log-bin and --log-bin-index arguments,
if it's a directory, reports an error and aborts.
sql/rpl_rli.cc:
Added a check for the value of the --relay-log and --relay-log-index arguments,
if it's a directory, reports an error and aborts.
If --log-bin is set to a directory name with the trailing 'FN_LIBCHAR',
which will be '/' on Unix like systems, and '\\' on Windows like systems.
the basename of the binlog is empty so that the created files named
'.000001' and '.index'. It is not expected.
The same thing happened to --log-bin-index, --relay-log and
--relay-log-index options.
To resolve the problem, in these cases the program should report an error
and abort.
- Added checking of return value for system(), freopen(), fgets() and chown()
- Ensure that calls that require a format strings gets a format string
- Other trivial things
Updated test suite results (especially for pbxt and embedded server)
Removed warning for "Invalid (old?) table or database name 'mysqld.1'" from pbxt tests
Speed up some pbxt tests by inserting begin ; commit; around "while loops with inserts"
Added mysqld startup option '--debug-flush'
Create maria_recovery.trace in data directory instead of current directory
client/mysql.cc:
Check return value from system()
client/mysql_upgrade.c:
Check return value from fgets()
client/mysqladmin.cc:
Check return value from fgets()
client/mysqlslap.c:
Check return value from system() (but ignore it, as it's not critical)
extra/yassl/src/crypto_wrapper.cpp:
Check return value from fgets() (but ignore it, as it's internal file)
extra/yassl/taocrypt/src/aes.cpp:
Added extra {} to remove compiler warning
extra/yassl/taocrypt/src/blowfish.cpp:
Added extra {} to remove compiler warning
extra/yassl/taocrypt/src/misc.cpp:
Ifdef not used code
include/mysys_err.h:
Added error message for failing chown()
mysql-test/mysql-test-run.pl:
Don't give warning for skipping ndbcluster (never enabled in MariaDB)
mysql-test/suite/funcs_1/r/is_columns_is_embedded.result:
Update with new information schema information
mysql-test/suite/funcs_1/r/is_tables_is_embedded.result:
New test
mysql-test/suite/funcs_1/r/is_tables_myisam_embedded.result:
Update test results (has not been tested for a long time)
mysql-test/suite/funcs_1/r/is_tables_mysql_embedded.result:
Update test results (has not been tested for a long time)
mysql-test/suite/funcs_1/t/is_tables_is.test:
Don't run with embedded server (as results differ)
I added a new test for embedded server
mysql-test/suite/funcs_1/t/is_tables_is_embedded.test:
New test
mysql-test/suite/pbxt/my.cnf:
Allow one to run pbxt tests without having to specify --mysqld=--default-storage-engine=pbxt
mysql-test/suite/pbxt/t/count_distinct3.test:
Speed up test by inserting begin; ... commit;
mysql-test/suite/pbxt/t/subselect.test:
Speed up test by inserting begin; ... commit;
mysys/errors.c:
Added error message for failing chown()
mysys/my_copy.c:
Added error message for failing chown()
mysys/my_redel.c:
Added error message for failing chown()
mysys/safemalloc.c:
Added cast to get rid of compiler warning
sql/ha_partition.cc:
Fixed wrong argument to sql_print_error() (it requires a format string)
sql/log.cc:
Test return value of freopen()
sql/mysqld.cc:
Test return value of freopen()
Added startup option '--debug-flush' to be used when one gets a core dump (easy to explain to people on IRC)
sql/rpl_rli.cc:
Fixed wrong argument to sql_print_error() (it requires a format string)
sql/set_var.cc:
Added {} to get rid of compiler warnings
sql/slave.cc:
Fixed wrong argument to mi->report() and sql_print...() (they require a format string)
sql/sql_cache.cc:
Fixed wrong argument to sql_printinformation() (it requires a format string)
sql/sql_parse.cc:
Test return value of fgets()
sql/sql_plugin.cc:
Fixed wrong argument to sql_print_error() (it requires a format string)
sql/sql_select.cc:
Use unique table name for internal temp tables instead of full path
(Simple speed & space optimization)
sql/udf_example.c:
Removed compiler warning about not used variable
storage/maria/ha_maria.cc:
Fixed wrong argument to sql_print_error() and ma_check_print_error() (they require a format string)
storage/maria/ma_recovery.c:
Create maria_recovery.trace in data directory instead of current directory
storage/maria/unittest/ma_test_loghandler-t.c:
Fixed wrong argument to ok(); Requires a format string
storage/pbxt/src/strutil_xt.cc:
Detect temporary tables by checking if that path for the table is in the mysql data directory.
The database for temporary tables is after this patch, from PBXT point of view, ""
This is needed to stop PBXT from calling filename_to_tablename() with the base directory as an argument, which caused
ERROR: Invalid (old?) table or database name 'mysqld.1'" in the log when running the test suite.
tests/mysql_client_test.c:
Fixed compiler warnings
unittest/mysys/base64-t.c:
Fixed wrong argument to diag() (it requires a format string)
Added a comment that the current 'print' of differing buffers doesn't print the right thing,
but didn't fix this as it's not important (unless we find a bug in the real code)
- Review fixes
client/Makefile.am:
- Make it build on Linux
client/mysqlbinlog.cc:
- Coding style fixes
- Better/more comments
- Use client/sql_string.*, not server's sql/sql_string.*.
- Don't declare a dummy TABLE_LIST structure in the client.
client/sql_string.h:
- Use client/sql_string.*, not server's sql/sql_string.*.
sql/log_event.cc:
= Fix coding style
= Introduce Log_event::event_owns_temp_buf which tells whether Log_event::temp_buf is 'owned' by the Log_event object and should be my_free'd on return.
This is needed because rewrite_db() needs to dispose of the buffer, and
- when mysqlbinlog is reading directly from binlog file, the buffer
should be freed
- when mysqlbinlog is reading from a server, the buffer is a part of network
buffer and shouldn't be freed.
sql/log_event.h:
Introduce Log_event::event_owns_temp_buf which tells whether Log_event::temp_buf is 'owned' by the Log_event object and should be my_free'd on return.
This is needed because rewrite_db() needs to dispose of the buffer, and
- when mysqlbinlog is reading directly from binlog file, the buffer
should be freed
- when mysqlbinlog is reading from a server, the buffer is a part of network
buffer and shouldn't be freed.
sql/mysqld.cc:
- Better/more comments
sql/rpl_filter.cc:
- #ifdef-out Rpl_filter::tables_ok from the client. This allows not
to define dummy TABLE_LIST on the client
sql/rpl_filter.h:
- #ifdef-out Rpl_filter::tables_ok from the client. This allows not
to define dummy TABLE_LIST on the client
sql/sql_string.cc:
- Use client/sql_string.*, not server's sql/sql_string.*.
sql/sql_string.h:
- Use client/sql_string.*, not server's sql/sql_string.*.
- mysql_install_db doesn't require --basedir option anymore
- Fix that mysql_install_db mysqld_safe mysql_fix_privilege_tables has right paths for tar binary install
- Move some files from share/mysql to where they have always been (1.0 - 5.0)
- Move scripts used when installing MariaDB to the scripts directory (Added symlinks in old place for compatibility)
- Move man files to 'man' (from 'share/man')
- Ensure that all scripts are executable
mysql_secure_installation.sh
- Added support for --basedir flag
- Don't assume that the mysql binary is in the path
Other:
- Fixed crash when one got kill signal during bootstrap
Docs/INSTALL-BINARY:
Change references from MySQL to MariaDB
Docs/mysql.info:
Change references from MySQL to MariaDB
README:
Removed duplicate row
configure.in:
Change references from MySQL to MariaDB
libmysql/libmysql.c:
Assume that if version string contains '-maria-' we are also using MariaDB
scripts/make_binary_distribution.sh:
Fix that mysql_install_db mysqld_safe mysql_fix_privilege_tables has right paths for tar binary install
Remove some files that should not be part of a MariaDB binary install
Move some files from share/mysql to where they have always been (1.0 - 5.0)
Move man files to 'man' (from 'share/man')
Move scripts used when installing MariaDB to the scripts directory (Added symlinks in old place for compatibility)
Removed generation of 'netware/init_db.sql', as it was never used
Remove old reference to bk tree
scripts/mysql_secure_installation.sh:
Added support for --basedir flag
Don't assume that the mysql binary is in the path
Use .my.cnf files
Removed a lot of useless 'echo' rows
sql/mysqld.cc:
Fixed crash when one got kill signal during bootstrap
storage/maria/Makefile.am:
Don't add internal test files to binary distributions
storage/myisam/Makefile.am:
Don't add internal test files to binary distributions
support-files/Makefile.am:
Make scripts executable
support-files/config.huge.ini.sh:
Removed execution bit
support-files/config.medium.ini.sh:
Removed execution bit
support-files/config.small.ini.sh:
Removed execution bit
support-files/mysql.server.sh:
Ensure this works also mysqld is in the 'bin' directory
Original revision:
------------------------------------------------------------
revno: 2801.10.16
committer: Vladislav Vaintroub <vvaintroub@mysql.com>
branch nick: mysql-azalea-bugfixing
timestamp: Mon 2009-08-10 13:26:23 +0200
message:
Bug #46267 Shutdown with idle connection crash the server.
The crash happens when mysqld logs a warning. The macro
ER() used in sql_print_warning references thread local storage
variable via current_thd(), to output the warning in "current
user language". However, for the shutdown thread,
current_thd() will return NULL, and mysqld will crash while
derefencing NULL pointer.
Solution: get error mesage text with ER_DEFAULT() macro
instead of ER(), this does not current_thd() and will output
errors in default language.
------------------------------------------------------------
Original revision:
------------------------------------------------------------
revno: 2801.10.16
committer: Vladislav Vaintroub <vvaintroub@mysql.com>
branch nick: mysql-azalea-bugfixing
timestamp: Mon 2009-08-10 13:26:23 +0200
message:
Bug #46267 Shutdown with idle connection crash the server.
The crash happens when mysqld logs a warning. The macro
ER() used in sql_print_warning references thread local storage
variable via current_thd(), to output the warning in "current
user language". However, for the shutdown thread,
current_thd() will return NULL, and mysqld will crash while
derefencing NULL pointer.
Solution: get error mesage text with ER_DEFAULT() macro
instead of ER(), this does not current_thd() and will output
errors in default language.
------------------------------------------------------------
Conflicts
=========
Text conflict in .bzr-mysql/default.conf
Text conflict in libmysqld/CMakeLists.txt
Text conflict in libmysqld/Makefile.am
Text conflict in mysql-test/collections/default.experimental
Text conflict in mysql-test/extra/rpl_tests/rpl_row_sp006.test
Text conflict in mysql-test/suite/binlog/r/binlog_tmp_table.result
Text conflict in mysql-test/suite/rpl/r/rpl_loaddata.result
Text conflict in mysql-test/suite/rpl/r/rpl_loaddata_fatal.result
Text conflict in mysql-test/suite/rpl/r/rpl_row_create_table.result
Text conflict in mysql-test/suite/rpl/r/rpl_row_sp006_InnoDB.result
Text conflict in mysql-test/suite/rpl/r/rpl_stm_log.result
Text conflict in mysql-test/suite/rpl_ndb/r/rpl_ndb_circular_simplex.result
Text conflict in mysql-test/suite/rpl_ndb/r/rpl_ndb_sp006.result
Text conflict in mysql-test/t/mysqlbinlog.test
Text conflict in sql/CMakeLists.txt
Text conflict in sql/Makefile.am
Text conflict in sql/log_event_old.cc
Text conflict in sql/rpl_rli.cc
Text conflict in sql/slave.cc
Text conflict in sql/sql_binlog.cc
Text conflict in sql/sql_lex.h
21 conflicts encountered.
NOTE
====
mysql-5.1-rpl-merge has been made a mirror of mysql-next-mr:
- "mysql-5.1-rpl-merge$ bzr pull ../mysql-next-mr"
This is the first cset (merge/...) committed after pulling
from mysql-next-mr.
Conflicts
=========
Text conflict in .bzr-mysql/default.conf
Text conflict in libmysqld/CMakeLists.txt
Text conflict in libmysqld/Makefile.am
Text conflict in mysql-test/collections/default.experimental
Text conflict in mysql-test/extra/rpl_tests/rpl_row_sp006.test
Text conflict in mysql-test/suite/binlog/r/binlog_tmp_table.result
Text conflict in mysql-test/suite/rpl/r/rpl_loaddata.result
Text conflict in mysql-test/suite/rpl/r/rpl_loaddata_fatal.result
Text conflict in mysql-test/suite/rpl/r/rpl_row_create_table.result
Text conflict in mysql-test/suite/rpl/r/rpl_row_sp006_InnoDB.result
Text conflict in mysql-test/suite/rpl/r/rpl_stm_log.result
Text conflict in mysql-test/suite/rpl_ndb/r/rpl_ndb_circular_simplex.result
Text conflict in mysql-test/suite/rpl_ndb/r/rpl_ndb_sp006.result
Text conflict in mysql-test/t/mysqlbinlog.test
Text conflict in sql/CMakeLists.txt
Text conflict in sql/Makefile.am
Text conflict in sql/log_event_old.cc
Text conflict in sql/rpl_rli.cc
Text conflict in sql/slave.cc
Text conflict in sql/sql_binlog.cc
Text conflict in sql/sql_lex.h
21 conflicts encountered.
NOTE
====
mysql-5.1-rpl-merge has been made a mirror of mysql-next-mr:
- "mysql-5.1-rpl-merge$ bzr pull ../mysql-next-mr"
This is the first cset (merge/...) committed after pulling
from mysql-next-mr.
The original code comes, as far as I know, from Google (Mark Callaghan's team) with additional work from Percona, Ourdelta and Weldon Whipple.
This code provides the same functionallity, but with a lot of changes to make it faster and better fit the MariaDB infrastucture.
Added new status variables:
- Com_show_client_statistics, Com_show_index_statistics, Com_show_table_statistics, Com_show_user_statistics
- Access_denied_errors, Busy_time (clock time), Binlog_bytes_written, Cpu_time, Empty_queries, Rows_sent, Rows_read
Added new variable / startup option 'userstat' to control if user statistics should be enabled or not
Added my_getcputime(); Returns cpu time used by this thread.
New FLUSH commands:
- FLUSH SLOW QUERY LOG
- FLUSH TABLE_STATISTICS
- FLUSH INDEX_STATISTICS
- FLUSH USER_STATISTICS
- FLUSH CLIENT_STATISTICS
New SHOW commands:
- SHOW CLIENT_STATISTICS
- SHOW USER_STATISTICS
- SHOW TABLE_STATISTICS
- SHOW INDEX_STATISTICS
New Information schemas:
- CLIENT_STATISTICS
- USER_STATISTICS
- INDEX_STATISTICS
- TABLE_STATISTICS
Added support for all new flush commands to mysqladmin
Added handler::ha_... wrappers for all handler read calls to do statistics counting
- Changed all code to use new ha_... calls
- Count number of read rows, changed rows and rows read trough an index
Added counting of number of bytes sent to binary log (status variable Binlog_bytes_written)
Added counting of access denied errors (status variable Access_denied_erors)
Bugs fixed:
- Fixed bug in add_to_status() and add_diff_to_status() where longlong variables where threated as long
- CLOCK_GETTIME was not propely working on Linuxm
client/mysqladmin.cc:
Added support for all new flush commmands and some common combinations:
flush-slow-log
flush-table-statistics
flush-index-statistics
flush-user-statistics
flush-client-statistics
flush-all-status
flush-all-statistics
configure.in:
Added checking if clock_gettime needs the librt.
(Fixes Bug #37639 clock_gettime is never used/enabled in Linux/Unix)
include/my_sys.h:
Added my_getcputime()
include/mysql_com.h:
Added LIST_PROCESS_HOST_LEN & new REFRESH target defines
mysql-test/r/information_schema.result:
New information schema tables added
mysql-test/r/information_schema_all_engines.result:
New information schema tables added
mysql-test/r/information_schema_db.result:
New information schema tables added
mysql-test/r/log_slow.result:
Added testing that flosh slow query logs is accepted
mysql-test/r/status_user.result:
Basic testing of user, client, table and index statistics
mysql-test/t/log_slow.test:
Added testing that flosh slow query logs is accepted
mysql-test/t/status_user-master.opt:
Ensure that we get a fresh restart before running status_user.test
mysql-test/t/status_user.test:
Basic testing of user, client, table and index statistics
mysys/my_getsystime.c:
Added my_getcputime()
Returns cpu time used by this thread.
sql/authors.h:
Updated authors to have core and original MySQL developers first.
sql/event_data_objects.cc:
Updated call to mysql_reset_thd_for_next_command()
sql/event_db_repository.cc:
Changed to use new ha_... calls
sql/filesort.cc:
Changed to use new ha_... calls
sql/ha_partition.cc:
Changed to use new ha_... calls
Fixed comment syntax
sql/handler.cc:
Changed to use new ha_... calls
Reset table statistics
Added code to update global table and index status
Added counting of rows changed
sql/handler.h:
Added table and index statistics variables
Added function reset_statistics()
Added handler::ha_... wrappers for all handler read calls to do statistics counting
Protected all normal read calls to ensure we use the new calls in the server.
Made ha_partition a friend class so that partition code can call the old read functions
sql/item_subselect.cc:
Changed to use new ha_... calls
sql/lex.h:
Added keywords for new information schema tables and flush commands
sql/log.cc:
Added flush_slow_log()
Added counting of number of bytes sent to binary log
Removed not needed test of thd (It's used before, so it's safe to use)
Added THD object to MYSQL_BIN_LOG::write_cache() to simplify statistics counting
sql/log.h:
Added new parameter to write_cache()
Added flush_slow_log() functions.
sql/log_event.cc:
Updated call to mysql_reset_thd_for_next_command()
Changed to use new ha_... calls
sql/log_event_old.cc:
Updated call to mysql_reset_thd_for_next_command()
Changed to use new ha_... calls
sql/mysql_priv.h:
Updated call to mysql_reset_thd_for_next_command()
Added new statistics functions and variables needed by these.
sql/mysqld.cc:
Added new statistics variables and structures to handle these
Added new status variables:
- Com_show_client_statistics, Com_show_index_statistics, Com_show_table_statistics, Com_show_user_statistics
- Access_denied_errors, Busy_time (clock time), Binlog_bytes_written, Cpu_time, Empty_queries, Rows_set, Rows_read
Added new option 'userstat' to control if user statistics should be enabled or not
sql/opt_range.cc:
Changed to use new ha_... calls
sql/opt_range.h:
Changed to use new ha_... calls
sql/opt_sum.cc:
Changed to use new ha_... calls
sql/records.cc:
Changed to use new ha_... calls
sql/set_var.cc:
Added variable 'userstat'
sql/sp.cc:
Changed to use new ha_... calls
sql/sql_acl.cc:
Changed to use new ha_... calls
Added counting of access_denied_errors
sql/sql_base.cc:
Added call to statistics functions
sql/sql_class.cc:
Added usage of org_status_var, to store status variables at start of command
Added functions THD::update_stats(), THD::update_all_stats()
Fixed bug in add_to_status() and add_diff_to_status() where longlong variables where threated as long
sql/sql_class.h:
Added new status variables to status_var
Moved variables that was not ulong in status_var last.
Added variables to THD for storing temporary values during statistics counting
sql/sql_connect.cc:
Variables and functions to calculate user and client statistics
Added counting of access_denied_errors and lost_connections
sql/sql_cursor.cc:
Changed to use new ha_... calls
sql/sql_handler.cc:
Changed to use new ha_... calls
sql/sql_help.cc:
Changed to use new ha_... calls
sql/sql_insert.cc:
Changed to use new ha_... calls
sql/sql_lex.h:
Added SQLCOM_SHOW_USER_STATS, SQLCOM_SHOW_TABLE_STATS, SQLCOM_SHOW_INDEX_STATS, SQLCOM_SHOW_CLIENT_STATS
sql/sql_parse.cc:
Added handling of:
- SHOW CLIENT_STATISTICS
- SHOW USER_STATISTICS
- SHOW TABLE_STATISTICS
- SHOW INDEX_STATISTICS
Added handling of new FLUSH commands:
- FLUSH SLOW QUERY LOGS
- FLUSH TABLE_STATISTICS
- FLUSH INDEX_STATISTICS
- FLUSH USER_STATISTICS
- FLUSH CLIENT_STATISTICS
Added THD parameter to mysql_reset_thd_for_next_command()
Added initialization and calls to user statistics functions
Added increment of statistics variables empty_queries, rows_sent and access_denied_errors.
Added counting of cpu time per query
sql/sql_plugin.cc:
Changed to use new ha_... calls
sql/sql_prepare.cc:
Updated call to mysql_reset_thd_for_next_command()
sql/sql_select.cc:
Changed to use new ha_... calls
Indentation changes
sql/sql_servers.cc:
Changed to use new ha_... calls
sql/sql_show.cc:
Added counting of access denied errors
Added function for new information schema tables:
- CLIENT_STATISTICS
- USER_STATISTICS
- INDEX_STATISTICS
- TABLE_STATISTICS
Changed to use new ha_... calls
sql/sql_table.cc:
Changed to use new ha_... calls
sql/sql_udf.cc:
Changed to use new ha_... calls
sql/sql_update.cc:
Changed to use new ha_... calls
sql/sql_yacc.yy:
Add new show and flush commands
sql/structs.h:
Add name_length to KEY to avoid some strlen
Added cache_name to KEY for fast storage of keyvalue in cache
Added structs USER_STATS, TABLE_STATS, INDEX_STATS
Added function prototypes for statistics functions
sql/table.cc:
Store db+table+index name into keyinfo->cache_name
sql/table.h:
Added new information schema tables
sql/tztime.cc:
Changed to use new ha_... calls
Implemented the server infrastructure for the fix:
1. Added a function LEX_STRING *thd_query_string(THD) to return
a LEX_STRING structure instead of char *.
This is the function that must be called in innodb instead of
thd_query()
2. Did some encapsulation in THD : aggregated thd_query and
thd_query_length into a LEX_STRING and made accessor and mutator
methods for easy code updating.
3. Updated the server code to use the new methods where applicable.
Implemented the server infrastructure for the fix:
1. Added a function LEX_STRING *thd_query_string(THD) to return
a LEX_STRING structure instead of char *.
This is the function that must be called in innodb instead of
thd_query()
2. Did some encapsulation in THD : aggregated thd_query and
thd_query_length into a LEX_STRING and made accessor and mutator
methods for easy code updating.
3. Updated the server code to use the new methods where applicable.
Bug #46917: mysqd-nt installs wrong
When parsing the service installation parameter in
default_service_handling() make sure the value of the
optional parameter doesn't overwrite it's name.
Fix a regression that crept in when downporting Windows improvements.
Instead of a shutdown thread, another thread that handledsocket connection was created.
Fix a regression that crept in when downporting Windows improvements.
Instead of a shutdown thread, another thread that handledsocket connection was created.
----------------------------------------------------------
revno: 2630.28.1
committer: Konstantin Osipov <kostja@sun.com>
branch nick: mysql-6.0-runtime
timestamp: Thu 2008-10-23 15:23:44 +0400
message:
Bug#32738 "mysqld: Two slow log option/variable descriptions are
inaccurate"
Update option description per suggestion from the documentation team.
sql/mysqld.cc:
Update options help texts (Bug#32738). Use - instead of _ in option
names.
----------------------------------------------------------
revno: 2630.28.1
committer: Konstantin Osipov <kostja@sun.com>
branch nick: mysql-6.0-runtime
timestamp: Thu 2008-10-23 15:23:44 +0400
message:
Bug#32738 "mysqld: Two slow log option/variable descriptions are
inaccurate"
Update option description per suggestion from the documentation team.
