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-rw-r--r--src/backend/rewrite/rewriteDefine.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/backend/rewrite/rewriteDefine.c b/src/backend/rewrite/rewriteDefine.c
index a354969..6c05a5b 100644
--- a/src/backend/rewrite/rewriteDefine.c
+++ b/src/backend/rewrite/rewriteDefine.c
@@ -29,6 +29,7 @@
#include "catalog/pg_rewrite.h"
#include "catalog/storage.h"
#include "commands/policy.h"
+#include "commands/tablecmds.h"
#include "miscadmin.h"
#include "nodes/nodeFuncs.h"
#include "parser/parse_utilcmd.h"
@@ -422,6 +423,9 @@ DefineQueryRewrite(const char *rulename,
* whole business of converting relations to views is just an obsolete
* kluge to allow dump/reload of views that participate in circular
* dependencies.)
+ *
+ * Also ensure the relation isn't being manipulated in any outer SQL
+ * command of our own session.
*/
if (event_relation->rd_rel->relkind != RELKIND_VIEW &&
event_relation->rd_rel->relkind != RELKIND_MATVIEW)
@@ -430,6 +434,8 @@ DefineQueryRewrite(const char *rulename,
Snapshot snapshot;
TupleTableSlot *slot;
+ CheckTableNotInUse(event_relation, "CREATE RULE");
+
if (event_relation->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
ereport(ERROR,
(errcode(ERRCODE_WRONG_OBJECT_TYPE),