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Some trivial optimzations

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Check if AND/OR expression can be NULL; Fixed bug in GROUP BY and-or-expression where expression could be NULL
Bug fix for SHOW OPEN TABLES when user didn't have privilege to access all open tables.
Better fix for ALTER TABLE on BDB tables.
This commit is contained in:
monty@mashka.mysql.fi
2002-09-03 15:44:25 +03:00
parent a5f9e95a93
commit a01a0840dc
24 changed files with 131 additions and 53 deletions
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12
sql/sql_class.cc
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@ -356,6 +356,18 @@ CHANGED_TABLE_LIST* THD::changed_table_dup(TABLE *table)
}
#ifdef SIGNAL_WITH_VIO_CLOSE
void THD::close_active_vio()
{
safe_mutex_assert_owner(&LOCK_delete);
if (active_vio)
{
vio_close(active_vio);
active_vio = 0;
}
}
#endif
/*****************************************************************************
** Functions to provide a interface to select results
*****************************************************************************/