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BUG#28838 - duplicate external_lock in mysql_alter_table

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Removed duplicate call to handler::external_lock() when
ALTER TABLE that doesn't need to copy a table (quick
ALTER TABLE) was executed.

Also quick ALTER TABLE doesn't hold LOCK_open anymore when
it enables/disables indexes.
This commit is contained in:
svoj@mysql.com/june.mysql.com 2007-07-18 15:39:13 +05:00
parent 62620ecb4e
commit 17d5af9922
1 changed files with 1 additions and 3 deletions
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4
sql/sql_table.cc
View File

@ -3789,11 +3789,9 @@ view_err:
{
VOID(pthread_mutex_lock(&LOCK_open));
wait_while_table_is_used(thd, table, HA_EXTRA_FORCE_REOPEN);
table->file->external_lock(thd, F_WRLCK);
VOID(pthread_mutex_unlock(&LOCK_open));
alter_table_manage_keys(table, table->file->indexes_are_disabled(),
alter_info->keys_onoff);
table->file->external_lock(thd, F_UNLCK);
VOID(pthread_mutex_unlock(&LOCK_open));
error= ha_commit_stmt(thd);
if (ha_commit(thd))
error= 1;