From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Tue, 16 Jul 2019 03:27:13 +0000 (-0400)
Subject: Remove dead code.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4c3d05d875dd173a81a995c6e14d69496b467eec;p=postgresql

Remove dead code.

These memory context switches are useless in the wake of commit
1cff1b95a.  Noted by Jesper Pedersen.

Discussion: https://postgr.es/m/f078ce63-9e04-0f3e-d200-d7ee66279abe@redhat.com
---

diff --git a/src/backend/commands/async.c b/src/backend/commands/async.c
index 34e5ca9edb..6e9c580ec6 100644
--- a/src/backend/commands/async.c
+++ b/src/backend/commands/async.c
@@ -693,15 +693,8 @@ pg_listening_channels(PG_FUNCTION_ARGS)
 	/* stuff done only on the first call of the function */
 	if (SRF_IS_FIRSTCALL())
 	{
-		MemoryContext oldcontext;
-
 		/* create a function context for cross-call persistence */
 		funcctx = SRF_FIRSTCALL_INIT();
-
-		/* switch to memory context appropriate for multiple function calls */
-		oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
-
-		MemoryContextSwitchTo(oldcontext);
 	}
 
 	/* stuff done on every call of the function */