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-rw-r--r--src/backend/commands/matview.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/backend/commands/matview.c b/src/backend/commands/matview.c
index 6b5a9b6fe81..b7daf1ca0a0 100644
--- a/src/backend/commands/matview.c
+++ b/src/backend/commands/matview.c
@@ -264,8 +264,7 @@ ExecRefreshMatView(RefreshMatViewStmt *stmt, const char *queryString,
* The stored query was rewritten at the time of the MV definition, but
* has not been scribbled on by the planner.
*/
- dataQuery = (Query *) linitial(actions);
- Assert(IsA(dataQuery, Query));
+ dataQuery = castNode(Query, linitial(actions));
/*
* Check for active uses of the relation in the current transaction, such