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Alter online table x (no options) possible

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This no-op of an operations should be able to occur without locks and
occur online.
This commit is contained in:
Daniel Black
2015-03-12 07:08:31 +11:00
parent 9088f26f20
commit 2bb0e71358
3 changed files with 9 additions and 2 deletions
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4
sql/sql_table.cc
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@ -8431,6 +8431,7 @@ bool mysql_alter_table(THD *thd,char *new_db, char *new_name,
THD_STAGE_INFO(thd, stage_setup);
if (!(alter_info->flags & ~(Alter_info::ALTER_RENAME |
Alter_info::ALTER_KEYS_ONOFF)) &&
alter_info->flags != 0 &&
alter_info->requested_algorithm !=
Alter_info::ALTER_TABLE_ALGORITHM_COPY &&
!table->s->tmp_table) // no need to touch frm
@ -8449,7 +8450,8 @@ bool mysql_alter_table(THD *thd,char *new_db, char *new_name,
DBUG_RETURN(res);
}
handle_if_exists_options(thd, table, alter_info);
if (alter_info->flags != 0)
handle_if_exists_options(thd, table, alter_info);
/*
Look if we have to do anything at all.