From: Kyotaro Horiguchi <horikyoga.ntt@gmail.com>
Date: Thu, 18 Jun 2020 11:25:25 +0900
Subject: [PATCH 2/3] 002

---
 src/backend/replication/slot.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/backend/replication/slot.c b/src/backend/replication/slot.c
index dcc76c4783..8893516f00 100644
--- a/src/backend/replication/slot.c
+++ b/src/backend/replication/slot.c
@@ -380,7 +380,7 @@ static int
 ReplicationSlotAcquireInternal(ReplicationSlot *slot, const char *name,
 							   SlotAcquireBehavior behavior)
 {
-	ReplicationSlot *s;
+	ReplicationSlot *s = NULL;
 	int			active_pid;
 
 retry:
@@ -393,8 +393,12 @@ retry:
 	 * acquire is not given. If the slot is not found, we either
 	 * return -1 or error out.
 	 */
-	s = (slot == NULL) ? SearchNamedReplicationSlot(name) : slot;
-	if (s == NULL || !s->in_use || strcmp(name, NameStr(s->data.name)) != 0)
+	if (!slot)
+		s = SearchNamedReplicationSlot(name);
+	else if(s->in_use && strcmp(name, NameStr(s->data.name)))
+		s = slot;
+
+	if (s == NULL)
 	{
 		if (behavior == SAB_Inquire)
 		{
-- 
2.18.4


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