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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 a3c0e915434..24ed3718eff 100644
--- a/src/backend/executor/nodeModifyTable.c
+++ b/src/backend/executor/nodeModifyTable.c
@@ -2316,7 +2316,9 @@ ExecInitModifyTable(ModifyTable *node, EState *estate, int eflags)
* verify that the proposed target relations are valid and open their
* indexes for insertion of new index entries. Note we *must* set
* estate->es_result_relation_info correctly while we initialize each
- * sub-plan; ExecContextForcesOids depends on that!
+ * sub-plan; external modules such as FDWs may depend on that (see
+ * contrib/postgres_fdw/postgres_fdw.c: postgresBeginDirectModify()
+ * as one example).
*/
saved_resultRelInfo = estate->es_result_relation_info;