MySQL 5.6.14 Source Code Document
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ctype_like_range_f1f2.inc
1 #
2 # Bug#32510 LIKE search fails with indexed 'eucjpms' and 'ujis' char column
3 #
4 # Testing my_ctype_like_range_xxx
5 # (used in LIKE optimization for an indexed column)
6 #
7 
8 # Create table using @@character_set_connection and @@collation_connection
9 # for the string columns.
10 
11 CREATE TABLE t1 AS
12 SELECT 10 AS a, REPEAT('a',20) AS b, REPEAT('a',8) AS c, REPEAT('a',8) AS d;
13 ALTER TABLE t1 ADD PRIMARY KEY(a), ADD KEY(b);
14 
15 INSERT INTO t1 (a, b) VALUES (1, repeat(0xF1F2,5));
16 INSERT INTO t1 (a, b) VALUES (2, repeat(0xF1F2,10));
17 INSERT INTO t1 (a, b) VALUES (3, repeat(0xF1F2,11));
18 INSERT INTO t1 (a, b) VALUES (4, repeat(0xF1F2,12));
19 
20 # Check pattern (important for ucs2, utf16, utf32)
21 SELECT hex(concat(repeat(0xF1F2, 10), '%'));
22 
23 --echo 3 rows expected
24 SELECT a, hex(b), c FROM t1 WHERE b LIKE concat(repeat(0xF1F2,10), '%');
25 DROP TABLE t1;