From 42cd4c6833b4233e9c6d53f0719dc1b7c1008542 Mon Sep 17 00:00:00 2001
From: Andrew Kane <andrew@ankane.org>
Date: Fri, 22 Dec 2023 12:49:07 -0500
Subject: [PATCH] Fixed call to GenerationContextCreate for Postgres < 15

---
 src/hnswbuild.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/hnswbuild.c b/src/hnswbuild.c
index c8e9bbc..17dbe65 100644
--- a/src/hnswbuild.c
+++ b/src/hnswbuild.c
@@ -492,7 +492,10 @@ InitBuildState(HnswBuildState * buildstate, Relation heap, Relation index, Index
 
 	buildstate->graphCtx = GenerationContextCreate(CurrentMemoryContext,
 											   "Hnsw build graph context",
-											   1024 * 1024, 1024 * 1024, 1024 * 1024);
+#if PG_VERSION_NUM >= 150000
+											   1024 * 1024, 1024 * 1024,
+#endif
+											   1024 * 1024);
 	buildstate->tmpCtx = AllocSetContextCreate(CurrentMemoryContext,
 											   "Hnsw build temporary context",
 											   ALLOCSET_DEFAULT_SIZES);