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-rw-r--r--src/backend/executor/execSRF.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/backend/executor/execSRF.c b/src/backend/executor/execSRF.c
index 8bc90a6c7e8..1be683db83d 100644
--- a/src/backend/executor/execSRF.c
+++ b/src/backend/executor/execSRF.c
@@ -467,6 +467,8 @@ ExecInitFunctionResultSet(Expr *expr,
* function itself. The argument expressions may not contain set-returning
* functions (the planner is supposed to have separated evaluation for those).
*
+ * This should be called in a short-lived (per-tuple) context.
+ *
* This is used by nodeProjectSet.c.
*/
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