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Fix Bug #57255 Cascade Delete results in "Got error -1 from storage engine".

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rb://477 approved by Marko
This commit is contained in:
Jimmy Yang 2010-10-06 03:41:26 -07:00
commit cf2c8701b4
7 changed files with 114 additions and 0 deletions
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9
storage/innobase/row/row0mysql.c
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@ -1613,6 +1613,9 @@ row_update_cascade_for_mysql(
trx = thr_get_trx(thr);
/* Increment fk_cascade_depth to record the recursive call depth on
a single update/delete that affects multiple tables chained
together with foreign key relations. */
thr->fk_cascade_depth++;
if (thr->fk_cascade_depth > FK_MAX_CASCADE_DEL) {
@ -1624,6 +1627,12 @@ run_again:
row_upd_step(thr);
/* The recursive call for cascading update/delete happens
in above row_upd_step(), reset the counter once we come
out of the recursive call, so it does not accumulate for
different row deletes */
thr->fk_cascade_depth = 0;
err = trx->error_state;
/* Note that the cascade node is a subnode of another InnoDB