From 4cd98d47935eb59421fa9b4a8f2e971da2de3b32 Mon Sep 17 00:00:00 2001
From: Andrew Kane <andrew@ankane.org>
Date: Sat, 17 Oct 2026 22:09:51 -0700
Subject: [PATCH] Improved code [skip ci]

---
 src/hnswutils.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/hnswutils.c b/src/hnswutils.c
index 6fc2169..b9c9fe6 100644
--- a/src/hnswutils.c
+++ b/src/hnswutils.c
@@ -863,8 +863,10 @@ HnswReadStreamNextBlock(ReadStream *stream, void *callback_private_data, void *p
 void
 HnswInitSearchState(HnswSearchState * searchState, Relation index, bool maintenance)
 {
+	bool		inMemory = index == NULL;
+
 #ifdef HNSW_USE_READ_STREAM
-	if (index != NULL)
+	if (!inMemory)
 	{
 		int			flags = READ_STREAM_DEFAULT;
 
@@ -876,7 +878,7 @@ HnswInitSearchState(HnswSearchState * searchState, Relation index, bool maintena
 	else
 		searchState->stream = NULL;
 #elif defined(HNSW_USE_PREFETCH)
-	if (index != NULL)
+	if (!inMemory)
 	{
 		if (maintenance)
 			searchState->maxPrefetch = get_tablespace_maintenance_io_concurrency(index->rd_rel->reltablespace);