Silence compiler warning in Assert()

alvherre · alvherre · commit 8569ef63f4d3 · 2018-10-08T10:36:33.000-03:00
gcc 6.3 does not whine about this mistake I made in 39808e8 but evidently lots of other compilers do, according to Michael Paquier, Peter Eisentraut, Arthur Zakirov, Tomas Vondra. Discussion: too many to list
diff --git a/src/backend/commands/event_trigger.c b/src/backend/commands/event_trigger.c
@@ -1761,7 +1761,7 @@ EventTriggerCollectAlterTableSubcmd(Node *subcmd, ObjectAddress address)
 		return;
 
 	Assert(IsA(subcmd, AlterTableCmd));
-	Assert(OidIsValid(currentEventTriggerState->currentCommand));
+	Assert(currentEventTriggerState->currentCommand != NULL);
 	Assert(OidIsValid(currentEventTriggerState->currentCommand->d.alterTable.objectId));
 
 	oldcxt = MemoryContextSwitchTo(currentEventTriggerState->cxt);
