From 3865898f0fb87d2002d4ee142e1b47f0df10aeaf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BE=90=E9=B2=B2=E9=B9=8F?= <xukunpeng2@huawei.com>
Date: Thu, 10 Sep 2020 16:08:04 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=E6=B5=8B=E8=AF=95=E6=A0=B7?=
 =?UTF-8?q?=E4=BE=8B=E7=BB=93=E6=9E=9C=20=E5=A2=9E=E5=8A=A0=E9=AA=8C?=
 =?UTF-8?q?=E8=AF=81lpad=E5=87=BD=E6=95=B0=E5=AF=B9=E6=9C=80=E5=A4=A7?=
 =?UTF-8?q?=E5=AD=98=E5=82=A8=E7=A9=BA=E9=97=B4=E5=90=8C=E4=B8=BA10M?=
 =?UTF-8?q?=E7=9A=84=E5=AD=97=E7=AC=A6=E7=B1=BB=E5=9E=8B=E5=9C=A8=E8=B6=85?=
 =?UTF-8?q?=E8=BF=87=E5=AD=98=E5=82=A8=E4=B8=8A=E9=99=90=E6=97=B6=E7=9A=84?=
 =?UTF-8?q?=E5=A4=84=E7=90=86=E6=96=B9=E5=BC=8F=E4=B8=8D=E4=B8=80=E8=87=B4?=
 =?UTF-8?q?=E9=97=AE=E9=A2=98=E7=9A=84=E6=B5=8B=E8=AF=95=E6=A0=B7=E4=BE=8B?=
 =?UTF-8?q?=20=E7=94=B1=E4=BA=8E=E4=BF=AE=E6=94=B9=E4=BA=86varchar.cpp?=
 =?UTF-8?q?=E4=B8=AD=E7=9A=84varchar=E5=87=BD=E6=95=B0=E5=AF=BC=E8=87=B4?=
 =?UTF-8?q?=E6=B5=8B=E8=AF=95=E6=A0=B7=E4=BE=8Bselect=20char=5Flength(to?=
 =?UTF-8?q?=5Fchar(lpad('abc',=201024=20*=201024=20*10=20+=201,=20'x')));?=
 =?UTF-8?q?=E7=9A=84=E6=B5=8B=E8=AF=95=E7=BB=93=E6=9E=9C=E5=8F=91=E7=94=9F?=
 =?UTF-8?q?=E4=BA=86=E6=94=B9=E5=8F=98=EF=BC=8C=E5=9B=A0=E6=AD=A4=E4=B8=80?=
 =?UTF-8?q?=E5=B9=B6=E5=AF=B9=E5=85=B6=E8=BF=9B=E8=A1=8C=E4=BA=86=E4=B8=AA?=
 =?UTF-8?q?=E6=9B=B4=E6=96=B0=EF=BC=8C=20=E5=8D=B3=EF=BC=9A=20=E6=9B=B4?=
 =?UTF-8?q?=E6=96=B0select=20char=5Flength(to=5Fchar(lpad('abc',=201024=20?=
 =?UTF-8?q?*=201024=20*10=20+=201,=20'x')));=20=E6=B5=8B=E8=AF=95=E6=A0=B7?=
 =?UTF-8?q?=E4=BE=8B=E7=9A=84=E6=B5=8B=E8=AF=95=E7=BB=93=E6=9E=9C=EF=BC=8C?=
 =?UTF-8?q?=20=E5=A2=9E=E5=8A=A0SELECT=20char=5Flength(lpad('abcCC',1024*1?=
 =?UTF-8?q?024*11,'x')::varchar2(10485760));=20=E5=92=8C=20SELECT=20char?=
 =?UTF-8?q?=5Flength(lpad('abcCC',1024*1024*11,'x')::varchar(10485760));?=
 =?UTF-8?q?=20=E6=B5=8B=E8=AF=95=E6=A0=B7=E4=BE=8B=E7=9A=84=E6=B5=8B?=
 =?UTF-8?q?=E8=AF=95=E7=BB=93=E6=9E=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/test/regress/expected/varchar.out | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/src/test/regress/expected/varchar.out b/src/test/regress/expected/varchar.out
index 2759e06a2..d41c007b6 100644
--- a/src/test/regress/expected/varchar.out
+++ b/src/test/regress/expected/varchar.out
@@ -115,7 +115,19 @@ select char_length(to_char(lpad('abc', 1024 * 1024 *10, 'x')));
 (1 row)
 
 select char_length(to_char(lpad('abc', 1024 * 1024 *10 + 1, 'x')));
-ERROR:  value too long for type character varying maxlen(10485760) input_len(10485761)
-CONTEXT:  referenced column: varchar
-SQL function "to_char" statement 1
-referenced column: char_length
\ No newline at end of file
+ char_length 
+-------------
+    10485760
+(1 row)
+
+SELECT char_length(lpad('abcCC',1024*1024*11,'x')::varchar2(10485760));
+ char_length 
+-------------
+    10485760
+(1 row)
+
+SELECT char_length(lpad('abcCC',1024*1024*11,'x')::varchar(10485760));
+ char_length 
+-------------
+    10485760
+(1 row)
\ No newline at end of file