From: Peter Geoghegan <pg@bowt.ie>
Date: Mon, 15 Jul 2019 21:35:06 +0000 (-0700)
Subject: Correct nbtsplitloc.c comment.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=bfdbac2ab3ef1a12a7de231552b128ed83ad00bb;p=postgresql

Correct nbtsplitloc.c comment.

The logic just added by commit e3899ffd falls back on a 50:50 page split
in the event of a new item that's just to the right of our provisional
"many duplicates" split point.  Fix a comment that incorrectly claimed
that the new item had to be just to the left of our provisional split
point.

Backpatch: 12-, just like commit e3899ffd.
---

diff --git a/src/backend/access/nbtree/nbtsplitloc.c b/src/backend/access/nbtree/nbtsplitloc.c
index 382496d41c..a7882fd874 100644
--- a/src/backend/access/nbtree/nbtsplitloc.c
+++ b/src/backend/access/nbtree/nbtsplitloc.c
@@ -815,7 +815,7 @@ _bt_bestsplitloc(FindSplitData *state, int perfectpenalty,
 	{
 		/*
 		 * Avoid the problem by peforming a 50:50 split when the new item is
-		 * just to the left of the would-be "many duplicates" split point.
+		 * just to the right of the would-be "many duplicates" split point.
 		 */
 		final = &state->splits[0];
 	}