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From: Alvaro Herrera <alvherre@alvh.no-ip.org>
Subject: [PATCH v7 3/6] if the queue becomes empty, reset the tail too
Date: Tue, 21 Jun 2022 19:35:26 +0200

---
 src/interfaces/libpq/fe-exec.c | 4 ++++
 1 file changed, 4 insertions(+)


inline patch 1: src/interfaces/libpq/fe-exec.c (+4/-0 lines) download inline-1.patchdiff --git a/src/interfaces/libpq/fe-exec.c b/src/interfaces/libpq/fe-exec.c
index 4180683194..ed26bab033 100644
--- a/src/interfaces/libpq/fe-exec.c
+++ b/src/interfaces/libpq/fe-exec.c
@@ -2988,6 +2988,10 @@ pqCommandQueueAdvance(PGconn *conn)
 	prevquery = conn->cmd_queue_head;
 	conn->cmd_queue_head = conn->cmd_queue_head->next;
 
+	/* If the queue is now empty, reset the tail too */
+	if (conn->cmd_queue_head == NULL)
+		conn->cmd_queue_tail = NULL;
+
 	/* and make it recyclable */
 	prevquery->next = NULL;
 	pqRecycleCmdQueueEntry(conn, prevquery);
-- 
2.30.2



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Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
	filename="v7-0004-add-some-tests-maybe-wrong.patch"



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