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MDEV-17359 Concatenation operator || in like expression

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This commit is contained in:
halfspawn
2018-10-09 10:20:49 +02:00
committed by Alexander Barkov
parent 981a81090f
commit 67f06cadc3
6 changed files with 276 additions and 4 deletions
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69
mysql-test/suite/compat/oracle/r/func_concat.result
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@ -322,3 +322,72 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select concat_operator_oracle(-1,0 ^ 1) AS "a"
#
# MDEV-17359 Concatenation operator || in like expression failed in sql_mode=ORACLE
#
SELECT 'abc' LIKE 'a'||'%';
'abc' LIKE 'a'||'%'
1
EXPLAIN EXTENDED SELECT 'abc' LIKE 'a'||'%';
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select 'abc' like concat_operator_oracle('a','%') AS "'abc' LIKE 'a'||'%'"
SELECT 'x' FROM DUAL WHERE 11 LIKE 1||1;
x
x
SELECT 'x' FROM DUAL WHERE 1||1 LIKE 11;
x
x
SELECT 'x' FROM DUAL WHERE 1||1 LIKE 1||1;
x
x
CREATE TABLE t1 (c1 VARCHAR(10),c2 VARCHAR(10), ord INTEGER);
INSERT INTO t1 VALUES ('a', 'ab' ,1);
INSERT INTO t1 VALUES ('ab', 'ab', 2);
INSERT INTO t1 VALUES ('abc', 'ab', 3);
SELECT c1 FROM t1 WHERE c1 LIKE '%'||'b' ORDER BY ord;
c1
ab
EXPLAIN EXTENDED SELECT c1 FROM t1 WHERE c1 LIKE '%'||'b' ORDER BY ord;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort
Warnings:
Note 1003 select "test"."t1"."c1" AS "c1" from "test"."t1" where "test"."t1"."c1" like <cache>(concat_operator_oracle('%','b')) order by "test"."t1"."ord"
SELECT c1 FROM t1 WHERE c1 LIKE c2||'%'||'c' ORDER BY ord;
c1
abc
EXPLAIN EXTENDED SELECT c1 FROM t1 WHERE c1 LIKE c2||'%'||'c' ORDER BY ord;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using filesort
Warnings:
Note 1003 select "test"."t1"."c1" AS "c1" from "test"."t1" where "test"."t1"."c1" like concat_operator_oracle(concat_operator_oracle("test"."t1"."c2",'%'),'c') order by "test"."t1"."ord"
SELECT 'x' FROM t1 WHERE c1||c2 LIKE 'aa%';
x
x
EXPLAIN EXTENDED SELECT 'x' FROM t1 WHERE c1||c2 LIKE 'aa%';
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where
Warnings:
Note 1003 select 'x' AS "x" from "test"."t1" where concat_operator_oracle("test"."t1"."c1","test"."t1"."c2") like 'aa%'
SELECT 'x' FROM t1 WHERE c1||c2 LIKE c2||c1;
x
x
EXPLAIN EXTENDED SELECT 'x' FROM t1 WHERE c1||c2 LIKE c2||c1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where
Warnings:
Note 1003 select 'x' AS "x" from "test"."t1" where concat_operator_oracle("test"."t1"."c1","test"."t1"."c2") like concat_operator_oracle("test"."t1"."c2","test"."t1"."c1")
CREATE VIEW v1 AS SELECT c1, c2, c1 LIKE c2||'_' FROM t1 ORDER BY ord;
SELECT * FROM v1;
c1 c2 c1 LIKE c2||'_'
a ab 0
ab ab 0
abc ab 1
EXPLAIN EXTENDED SELECT * FROM v1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select "test"."t1"."c1" AS "c1","test"."t1"."c2" AS "c2","test"."t1"."c1" like concat_operator_oracle("test"."t1"."c2",'_') AS "c1 LIKE c2||'_'" from "test"."t1" order by "test"."t1"."ord"
DROP VIEW v1;
DROP TABLE t1;