From a99448ab4515aaadc17647e53633f418893f5adf Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter_e@gmx.net>
Date: Mon, 1 May 2017 22:50:32 -0400
Subject: [PATCH] Don't wake up logical replication launcher unnecessarily

In CREATE SUBSCRIPTION, only wake up the launcher when the subscription
is enabled.

Author: Fujii Masao <masao.fujii@gmail.com>
---
 src/backend/commands/subscriptioncmds.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/backend/commands/subscriptioncmds.c b/src/backend/commands/subscriptioncmds.c
index c597a244f8..ee0983fd87 100644
--- a/src/backend/commands/subscriptioncmds.c
+++ b/src/backend/commands/subscriptioncmds.c
@@ -452,7 +452,8 @@ CreateSubscription(CreateSubscriptionStmt *stmt, bool isTopLevel)
 
 	heap_close(rel, RowExclusiveLock);
 
-	ApplyLauncherWakeupAtCommit();
+	if (enabled)
+		ApplyLauncherWakeupAtCommit();
 
 	ObjectAddressSet(myself, SubscriptionRelationId, subid);