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Fix for the patch for bug#21726: Incorrect result with multiple

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invocations of LAST_INSERT_ID.

Reding of LAST_INSERT_ID inside stored function wasn't noted by caller,
and no LAST_INSERT_ID_EVENT was issued for binary log.

The solution is to add THD::last_insert_id_used_bin_log, which is much
like THD::last_insert_id_used, but is reset only for upper-level
statements.  This new variable is used to issue LAST_INSERT_ID_EVENT.
This commit is contained in:
kroki/tomash@moonlight.intranet
2006-10-03 13:38:16 +04:00
parent 5ea8adfae7
commit 8798b462b5
9 changed files with 61 additions and 12 deletions
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10
sql/sql_class.cc
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@@ -179,9 +179,9 @@ THD::THD()
lock_id(&main_lock_id),
user_time(0), in_sub_stmt(0), global_read_lock(0), is_fatal_error(0),
rand_used(0), time_zone_used(0),
last_insert_id_used(0), insert_id_used(0), clear_next_insert_id(0),
in_lock_tables(0), bootstrap(0), derived_tables_processing(FALSE),
spcont(NULL)
last_insert_id_used(0), last_insert_id_used_bin_log(0), insert_id_used(0),
clear_next_insert_id(0), in_lock_tables(0), bootstrap(0),
derived_tables_processing(FALSE), spcont(NULL)
{
stmt_arena= this;
thread_stack= 0;
@@ -560,7 +560,7 @@ bool THD::store_globals()
THD::cleanup_after_query()
DESCRIPTION
This function is used to reset thread data to it's default state.
This function is used to reset thread data to its default state.
NOTE
This function is not suitable for setting thread data to some
@@ -568,6 +568,7 @@ bool THD::store_globals()
different master threads may overwrite data of each other on
slave.
*/
void THD::cleanup_after_query()
{
last_insert_id_used= FALSE;
@@ -582,6 +583,7 @@ void THD::cleanup_after_query()
where= THD::DEFAULT_WHERE;
}
/*
Convert a string to another character set