1 files changed, 16 insertions, 0 deletions
diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h
index a9a45f566c4..caf0d41f0bb 100644
--- a/src/include/nodes/execnodes.h
+++ b/src/include/nodes/execnodes.h
@@ -501,6 +501,19 @@ typedef struct ResultRelInfo
 	struct CopyMultiInsertBuffer *ri_CopyMultiInsertBuffer;
 } ResultRelInfo;
 
+/*
+ * To avoid an ABI-breaking change in the size of ResultRelInfo in back
+ * branches, we create one of these for each result relation for which we've
+ * computed extraUpdatedCols, and store it in EState.es_resultrelinfo_extra.
+ */
+typedef struct ResultRelInfoExtra
+{
+	ResultRelInfo *rinfo;		/* owning ResultRelInfo */
+
+	/* For INSERT/UPDATE, attnums of generated columns to be computed */
+	Bitmapset  *ri_extraUpdatedCols;
+} ResultRelInfoExtra;
+
 /* ----------------
  *	  EState information
  *
@@ -608,6 +621,9 @@ typedef struct EState
 	int			es_jit_flags;
 	struct JitContext *es_jit;
 	struct JitInstrumentation *es_jit_worker_instr;
+
+	/* List of ResultRelInfoExtra structs (see above) */
+	List	   *es_resultrelinfo_extra;
 } EState;