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-rw-r--r--include/my_base.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/my_base.h b/include/my_base.h
index 339554979a8..f79ff8805b9 100644
--- a/include/my_base.h
+++ b/include/my_base.h
@@ -187,7 +187,13 @@ enum ha_extra_function {
Inform handler that an "INSERT...ON DUPLICATE KEY UPDATE" will be
executed. This condition is unset by HA_EXTRA_NO_IGNORE_DUP_KEY.
*/
- HA_EXTRA_INSERT_WITH_UPDATE
+ HA_EXTRA_INSERT_WITH_UPDATE,
+ /*
+ Orders MERGE handler to attach or detach its child tables. Used at
+ begin and end of a statement.
+ */
+ HA_EXTRA_ATTACH_CHILDREN,
+ HA_EXTRA_DETACH_CHILDREN
};
/* The following is parameter to ha_panic() */