From fe9b218903d04c8ec193dc15abc772ed53de62a1 Mon Sep 17 00:00:00 2001
From: Andrew Kane <andrew@ankane.org>
Date: Fri, 11 Feb 2022 13:57:53 -0800
Subject: [PATCH] Reduced memory for unlogged tables [skip ci]

---
 src/ivfbuild.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/ivfbuild.c b/src/ivfbuild.c
index ecc65c4..5d40602 100644
--- a/src/ivfbuild.c
+++ b/src/ivfbuild.c
@@ -377,7 +377,11 @@ ComputeCenters(IvfflatBuildState * buildstate)
 	if (numSamples < 10000)
 		numSamples = 10000;
 
-	/* Sample samples */
+	/* Skip samples for unlogged table */
+	if (buildstate->heap == NULL)
+		numSamples = 1;
+
+	/* Sample rows */
 	buildstate->samples = VectorArrayInit(numSamples, buildstate->dimensions);
 	if (buildstate->heap != NULL)
 		SampleRows(buildstate);