From: Robert Haas <rhaas@postgresql.org>
Date: Mon, 15 Nov 2021 18:43:36 +0000 (-0500)
Subject: Fix dubious logic in cb_metapage_remove_index_entries.
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Fix dubious logic in cb_metapage_remove_index_entries.

Per another problem report from Dilip Kumar.
---

diff --git a/src/backend/access/conveyor/cbmetapage.c b/src/backend/access/conveyor/cbmetapage.c
index 16c050e7ef..e290c5238d 100644
--- a/src/backend/access/conveyor/cbmetapage.c
+++ b/src/backend/access/conveyor/cbmetapage.c
@@ -397,10 +397,9 @@ cb_metapage_remove_index_entries(CBMetapageData *meta, unsigned count,
 	meta->cbm_index_metapage_start +=
 		count * meta->cbm_pages_per_segment;
 	if (relocating)
-	{
-		meta->cbm_index_start = meta->cbm_index_metapage_start;
 		meta->cbm_entries_in_newest_index_segment += count;
-	}
+	else
+		meta->cbm_index_start = meta->cbm_index_metapage_start;
 }
 
 /*