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-rw-r--r--src/backend/executor/nodeModifyTable.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/backend/executor/nodeModifyTable.c b/src/backend/executor/nodeModifyTable.c
index a49c3da5b6c..deda3215028 100644
--- a/src/backend/executor/nodeModifyTable.c
+++ b/src/backend/executor/nodeModifyTable.c
@@ -956,9 +956,11 @@ ExecInsert(ModifyTableContext *context,
*
* We loop back here if we find a conflict below, either during
* the pre-check, or when we re-check after inserting the tuple
- * speculatively.
+ * speculatively. Better allow interrupts in case some bug makes
+ * this an infinite loop.
*/
vlock:
+ CHECK_FOR_INTERRUPTS();
specConflict = false;
if (!ExecCheckIndexConstraints(resultRelInfo, slot, estate,
&conflictTid, arbiterIndexes))