From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Wed, 19 Jan 2022 17:31:15 +0000 (-0500)
Subject: Remove redundant memory context switches in BeginCopyFrom().
X-Git-Tag: REL_15_BETA1~872
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=89f059bdf52cc9a86b890d42ceed92237123479e;p=thirdparty%2Fpostgresql.git

Remove redundant memory context switches in BeginCopyFrom().

This is probably a leftover from code refactoring.

Japin Li

Discussion: https://postgr.es/m/MEYP282MB16693DDABDFEC7949AC31857B6599@MEYP282MB1669.AUSP282.PROD.OUTLOOK.COM
---

diff --git a/src/backend/commands/copyfrom.c b/src/backend/commands/copyfrom.c
index 0d6b34206aa..7b3f5a84b82 100644
--- a/src/backend/commands/copyfrom.c
+++ b/src/backend/commands/copyfrom.c
@@ -1340,10 +1340,6 @@ BeginCopyFrom(ParseState *pstate,
 
 	cstate->whereClause = whereClause;
 
-	MemoryContextSwitchTo(oldcontext);
-
-	oldcontext = MemoryContextSwitchTo(cstate->copycontext);
-
 	/* Initialize state variables */
 	cstate->eol_type = EOL_UNKNOWN;
 	cstate->cur_relname = RelationGetRelationName(cstate->rel);