From bb211b66f2934fbfe85c091dbff8db9ac520ceb5 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Mon, 10 Oct 2016 10:35:58 -0400 Subject: [PATCH] In PQsendQueryStart(), avoid leaking any left-over async result. Ordinarily there would not be an async result sitting around at this point, but it appears that in corner cases there can be. Considering all the work we're about to launch, it's hardly going to cost anything noticeable to check. It's been like this forever, so back-patch to all supported branches. Report: --- src/interfaces/libpq/fe-exec.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/src/interfaces/libpq/fe-exec.c b/src/interfaces/libpq/fe-exec.c index a9ba54628fd..87ff5659ff3 100644 --- a/src/interfaces/libpq/fe-exec.c +++ b/src/interfaces/libpq/fe-exec.c @@ -1386,8 +1386,7 @@ PQsendQueryStart(PGconn *conn) } /* initialize async result-accumulation state */ - conn->result = NULL; - conn->next_result = NULL; + pqClearAsyncResult(conn); /* reset single-row processing mode */ conn->singleRowMode = false; -- 2.30.2