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Check if AND/OR expression can be NULL

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Better fix for ALTER TABLE on BDB tables
(Both of the above fixes are already in 4.0)
This commit is contained in:
monty@mashka.mysql.fi
2002-09-03 15:53:07 +03:00
parent 184ef91d4c
commit 20680f895e
3 changed files with 19 additions and 3 deletions
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16
sql/sql_table.cc
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@@ -19,6 +19,9 @@
#include "mysql_priv.h"
#include <hash.h>
#ifdef HAVE_BERKELEY_DB
#include <ha_berkeley.h>
#endif
#include <myisam.h>
#ifdef __WIN__
@@ -1675,11 +1678,18 @@ int mysql_alter_table(THD *thd,char *new_db, char *new_name,
VOID(pthread_cond_broadcast(&COND_refresh));
VOID(pthread_mutex_unlock(&LOCK_open));
#ifdef HAVE_BERKELEY_DB
extern bool berkeley_flush_logs(void);
if (old_db_type == DB_TYPE_BERKELEY_DB)
{
(void)berkeley_flush_logs();
table=open_ltable(thd,table_list,TL_READ);
(void) berkeley_flush_logs();
/*
For the alter table to be properly flushed to the logs, we
have to open the new table. If not, we get a problem on server
shutdown.
*/
if (!open_tables(thd, table_list)) // Should always succeed
{
close_thread_table(thd, &table_list->table);
}
}
#endif