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row0mysql.c:

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Backport from 4.0: Fix corruption of ON DELETE CASCADE in lock wait timeout
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heikki@hundin.mysql.fi 2002-11-07 15:05:26 +02:00
parent 5715252238
commit be51d6ae8c
1 changed files with 21 additions and 6 deletions
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27
innobase/row/row0mysql.c
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@ -1000,8 +1000,8 @@ row_update_cascade_for_mysql(
or set null operation */
dict_table_t* table) /* in: table where we do the operation */
{
ulint err;
trx_t* trx;
ulint err;
trx_t* trx;
trx = thr_get_trx(thr);
run_again:
@ -1012,11 +1012,26 @@ run_again:
err = trx->error_state;
if (err == DB_LOCK_WAIT) {
que_thr_stop_for_mysql(thr);
row_mysql_handle_errors(&err, trx, thr, NULL);
/* Note that the cascade node is a subnode of another InnoDB
query graph node. We do a normal lock wait in this node, but
all errors are handled by the parent node. */
if (err == DB_LOCK_WAIT) {
/* Handle lock wait here */
que_thr_stop_for_mysql(thr);
srv_suspend_mysql_thread(thr);
/* Note that a lock wait may also end in a lock wait timeout */
if (trx->error_state != DB_SUCCESS) {
return(trx->error_state);
}
/* Retry operation after a normal lock wait */
goto run_again;
}