From 7cdc608d97c4e51483e4e698abeef886300306ff Mon Sep 17 00:00:00 2001
From: chenzhikai <895543892@qq.com>
Date: Mon, 15 May 2023 17:23:57 +0800
Subject: [PATCH] =?UTF-8?q?dblink=E4=BB=A3=E7=A0=81=E9=80=BB=E8=BE=91?=
 =?UTF-8?q?=E8=B0=83=E6=95=B4?=
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---
 contrib/dblink/dblink.cpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/contrib/dblink/dblink.cpp b/contrib/dblink/dblink.cpp
index 56916f7f61..c4c59f4478 100644
--- a/contrib/dblink/dblink.cpp
+++ b/contrib/dblink/dblink.cpp
@@ -1486,12 +1486,13 @@ static void storeRow(storeInfo* sinfo, PGresult* res, bool first)
      */
     oldcontext = MemoryContextSwitchTo(sinfo->tmpcontext);
 
-     /* Should have a single-row result if we get here */
-    Assert(PQntuples(res) == 1);
-
     /* Done if empty resultset */
     if (PQntuples(res) == 0)
-            return;
+        return;
+
+     /* Should have a single-row result if we get here */
+    Assert(PQntuples(res) == 1);
+    
     /*
      * Fill cstrs with null-terminated strings of column values.
      */
-- 
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