From 9915fe8a1a8a80c54054c1e9ad94510c850b0fa9 Mon Sep 17 00:00:00 2001
From: Jeff Davis <jeff@j-davis.com>
Date: Sat, 9 Apr 2022 10:57:26 -0700
Subject: [PATCH] PG15: Handle different ways to get publication actions.

Account for PG commit 52e4f0cd47.
---
 src/backend/columnar/columnar_tableam.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/backend/columnar/columnar_tableam.c b/src/backend/columnar/columnar_tableam.c
index 9967a265e..a16210fb7 100644
--- a/src/backend/columnar/columnar_tableam.c
+++ b/src/backend/columnar/columnar_tableam.c
@@ -2292,18 +2292,30 @@ detoast_values(TupleDesc tupleDesc, Datum *orig_values, bool *isnull)
 static void
 ColumnarCheckLogicalReplication(Relation rel)
 {
+	bool pubActionInsert = false;
+
 	if (!is_publishable_relation(rel))
 	{
 		return;
 	}
 
+#if PG_VERSION_NUM >= PG_VERSION_15
+	{
+		PublicationDesc pubdesc;
+
+		RelationBuildPublicationDesc(rel, &pubdesc);
+		pubActionInsert = pubdesc.pubactions.pubinsert;
+	}
+#else
 	if (rel->rd_pubactions == NULL)
 	{
 		GetRelationPublicationActions(rel);
 		Assert(rel->rd_pubactions != NULL);
 	}
+	pubActionInsert = rel->rd_pubactions->pubinsert;
+#endif
 
-	if (rel->rd_pubactions->pubinsert)
+	if (pubActionInsert)
 	{
 		ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
 						errmsg(