From 6e5e0cf7b55dadc57258fee5447b16371bc390f3 Mon Sep 17 00:00:00 2001
From: Andrew Kane <andrew@ankane.org>
Date: Thu, 8 May 2025 21:14:34 -0700
Subject: [PATCH] Improved code [skip ci]

---
 src/hnswutils.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/hnswutils.c b/src/hnswutils.c
index c509d4f..292f298 100644
--- a/src/hnswutils.c
+++ b/src/hnswutils.c
@@ -806,8 +806,11 @@ HnswLoadUnvisitedFromDisk(HnswElement element, HnswUnvisited * unvisited, int *u
 			unvisited[(*unvisitedLength)++].indextid = *indextid;
 	}
 
+#ifdef USE_PREFETCH
+	/* TODO limit by get_tablespace_io_concurrency */
 	for (int i = 0; i < *unvisitedLength; i++)
 		PrefetchBuffer(index, MAIN_FORKNUM, ItemPointerGetBlockNumber(&unvisited[i].indextid));
+#endif
 }
 
 /*