From 4bff43a7244cedb45f99c812596a6527d3808c43 Mon Sep 17 00:00:00 2001
From: unknown <bar@bar.intranet.mysql.r18.ru>
Date: Wed, 24 Dec 2003 16:59:48 +0400
Subject: [PATCH] "like" did not work in some cases with character set big5

---
 mysql-test/include/have_big5.inc |  4 ++++
 mysql-test/r/ctype_big5.result   | 10 ++++++++++
 mysql-test/r/have_big5.require   |  2 ++
 mysql-test/t/ctype_big5.test     | 18 ++++++++++++++++++
 strings/ctype-big5.c             |  2 +-
 5 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 mysql-test/include/have_big5.inc
 create mode 100644 mysql-test/r/ctype_big5.result
 create mode 100644 mysql-test/r/have_big5.require
 create mode 100644 mysql-test/t/ctype_big5.test

diff --git a/mysql-test/include/have_big5.inc b/mysql-test/include/have_big5.inc
new file mode 100644
index 00000000000..790e8085e1a
--- /dev/null
+++ b/mysql-test/include/have_big5.inc
@@ -0,0 +1,4 @@
+-- require r/have_big5.require
+disable_query_log;
+show collation like "big5_chinese_ci";
+enable_query_log;
diff --git a/mysql-test/r/ctype_big5.result b/mysql-test/r/ctype_big5.result
new file mode 100644
index 00000000000..44fad0cd96a
--- /dev/null
+++ b/mysql-test/r/ctype_big5.result
@@ -0,0 +1,10 @@
+drop table if exists t1;
+SET NAMES big5;
+CREATE TABLE t1 (c CHAR(10) CHARACTER SET big5, KEY(c));
+INSERT INTO t1 VALUES ('aaa'),('aaaa'),('aaaaa');
+SELECT * FROM t1 WHERE c LIKE 'aaa%';
+c
+aaa
+aaaa
+aaaaa
+DROP TABLE t1;
diff --git a/mysql-test/r/have_big5.require b/mysql-test/r/have_big5.require
new file mode 100644
index 00000000000..74aacf74b62
--- /dev/null
+++ b/mysql-test/r/have_big5.require
@@ -0,0 +1,2 @@
+Collation	Charset	Id	Default	Compiled	Sortlen
+big5_chinese_ci	big5	1	Yes	Yes	1
diff --git a/mysql-test/t/ctype_big5.test b/mysql-test/t/ctype_big5.test
new file mode 100644
index 00000000000..9bf1808636e
--- /dev/null
+++ b/mysql-test/t/ctype_big5.test
@@ -0,0 +1,18 @@
+-- source include/have_big5.inc
+
+#
+# Tests with the big5 character set
+#
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+
+SET NAMES big5;
+
+#
+# Bug 1883: LIKE did not work in some cases with a key.
+#
+CREATE TABLE t1 (c CHAR(10) CHARACTER SET big5, KEY(c));
+INSERT INTO t1 VALUES ('aaa'),('aaaa'),('aaaaa');
+SELECT * FROM t1 WHERE c LIKE 'aaa%';
+DROP TABLE t1;
diff --git a/strings/ctype-big5.c b/strings/ctype-big5.c
index 85f066c4eba..c5ddc167d0d 100644
--- a/strings/ctype-big5.c
+++ b/strings/ctype-big5.c
@@ -377,7 +377,7 @@ static my_bool my_like_range_big5(CHARSET_INFO *cs __attribute__((unused)),
       *min_length= (uint) (min_str-min_org);
       *max_length= res_length;
       do {
-	*min_str++ = '\0';		/* Because if key compression */
+	*min_str++ = ' ';		/* Because if key compression */
 	*max_str++ = max_sort_char;
       } while (min_str != min_end);
       return 0;