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Apply InnoDB snapshot innodb-5.1-ss2858, part 9. Improve a comment.

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r2744 | marko | 2008-10-09 10:53:09 +0300 (Thu, 09 Oct 2008) | 5 lines
branches/5.1: ha_innobase::delete_all_rows(): In response to a user asking
<http://forums.innodb.com/read.php?4,215,215> why DELETE FROM t is not
mapped to TRUNCATE TABLE t as it is in MyISAM, note in a comment that
DELETE is transactional while TRUNCATE is not.
This commit is contained in:
Timothy Smith 2008-12-14 13:48:44 -07:00
parent 915635bbbe
commit 9f8f9715d3
1 changed files with 2 additions and 1 deletions
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storage/innobase/handler/ha_innodb.cc
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@ -5335,7 +5335,8 @@ ha_innobase::delete_all_rows(void)
if (thd_sql_command(user_thd) != SQLCOM_TRUNCATE) {
fallback:
/* We only handle TRUNCATE TABLE t as a special case.
DELETE FROM t will have to use ha_innobase::delete_row(). */
DELETE FROM t will have to use ha_innobase::delete_row(),
because DELETE is transactional while TRUNCATE is not. */
DBUG_RETURN(my_errno=HA_ERR_WRONG_COMMAND);
}