From 702c0547159f95e1ca68afb0134e719deeca8fbb Mon Sep 17 00:00:00 2001
From: sqyyeah <948885883@qq.com>
Date: Mon, 24 Aug 2020 19:35:23 +0800
Subject: [PATCH] add concat_ws function compatibility test case

---
 src/test/regress/expected/pg_compatibility.out | 16 +++++++++++++++-
 src/test/regress/sql/pg_compatibility.sql      |  6 +++++-
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/test/regress/expected/pg_compatibility.out b/src/test/regress/expected/pg_compatibility.out
index 1dba798d55..02c9491683 100644
--- a/src/test/regress/expected/pg_compatibility.out
+++ b/src/test/regress/expected/pg_compatibility.out
@@ -28,4 +28,18 @@ select ''::int;
 ERROR:  invalid input syntax for integer: ""
 LINE 1: select ''::int;
                ^
-CONTEXT:  referenced column: int4
\ No newline at end of file
+CONTEXT:  referenced column: int4
+
+select concat_ws('','ABCDE', 2, null, 22);
+ concat_ws
+-----------
+ ABCDE222
+(1 row)
+
+
+select concat_ws(null,'ABCDE', 2, null, 22);
+ concat_ws
+-----------
+ 
+(1 row)
+
diff --git a/src/test/regress/sql/pg_compatibility.sql b/src/test/regress/sql/pg_compatibility.sql
index 3db2d3bb2d..93a003df65 100644
--- a/src/test/regress/sql/pg_compatibility.sql
+++ b/src/test/regress/sql/pg_compatibility.sql
@@ -13,4 +13,8 @@ select concat(null,'','','') is null;
 
 select concat('','') is null;
 
-select ''::int;
\ No newline at end of file
+select ''::int;
+
+select concat_ws('','ABCDE', 2, null, 22);
+
+select concat_ws(null,'ABCDE', 2, null, 22);
\ No newline at end of file
-- 
Gitee