mirror of
https://github.com/MariaDB/server.git
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d1f42fc80f
Item_func_concat_ws::val_str(): - collects the result into the string "str" passed as a parameter. - calls val_str(&tmp_buffer) to get arguments. At some point due to heuristic it decides to swap the buffers: - collect the result into &tmp_buffer - call val_str(str) to get arguments Item_func_password::val_str_ascii() returns a String pointing to its member tmp_value[SCRAMBLED_PASSWORD_CHAR_LENGTH+1]. As a result, it's possible that both str and tmp_buffer in Item_func_concat_ws::val_str() point to Item_func_password::tmp_value. Then, memcmp() called on overlapping memory fragrments. Fixing Item_func_password::val_str_ascii() to use Item::copy() instead of Item::set().
306 lines
8.9 KiB
Text
306 lines
8.9 KiB
Text
DROP TABLE IF EXISTS t1;
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DROP PROCEDURE IF EXISTS p1;
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CREATE TABLE t1 ( number INT NOT NULL, alpha CHAR(6) NOT NULL );
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INSERT INTO t1 VALUES (1413006,'idlfmv'),
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(1413065,'smpsfz'),(1413127,'sljrhx'),(1413304,'qerfnd');
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SELECT number, alpha, CONCAT_WS('<---->',number,alpha) AS new
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FROM t1 GROUP BY number;
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number alpha new
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1413006 idlfmv 1413006<---->idlfmv
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1413065 smpsfz 1413065<---->smpsfz
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1413127 sljrhx 1413127<---->sljrhx
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1413304 qerfnd 1413304<---->qerfnd
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SELECT CONCAT_WS('<---->',number,alpha) AS new
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FROM t1 GROUP BY new LIMIT 1;
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new
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1413006<---->idlfmv
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SELECT number, alpha, CONCAT_WS('<->',number,alpha) AS new
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FROM t1 GROUP BY new LIMIT 1;
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number alpha new
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1413006 idlfmv 1413006<->idlfmv
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SELECT number, alpha, CONCAT_WS('-',number,alpha,alpha,alpha,alpha,alpha,alpha,alpha) AS new
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FROM t1 GROUP BY new LIMIT 1;
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number alpha new
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1413006 idlfmv 1413006-idlfmv-idlfmv-idlfmv-idlfmv-idlfmv-idlfmv-idlfmv
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SELECT number, alpha, CONCAT_WS('<------------------>',number,alpha) AS new
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FROM t1 GROUP BY new LIMIT 1;
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number alpha new
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1413006 idlfmv 1413006<------------------>idlfmv
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drop table t1;
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create table t1 (a char(4), b double, c date, d tinyint(4));
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insert into t1 values ('AAAA', 105, '2003-03-01', 1);
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select * from t1 where concat(A,C,B,D) = 'AAAA2003-03-011051';
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a b c d
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AAAA 105 2003-03-01 1
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drop table t1;
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select 'a' union select concat('a', -4);
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a
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a
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a-4
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select 'a' union select concat('a', -4.5);
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a
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a
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a-4.5
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select 'a' union select concat('a', -(4 + 1));
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a
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a
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a-5
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select 'a' union select concat('a', 4 - 5);
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a
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a
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a-1
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select 'a' union select concat('a', -'3');
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a
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a
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a-3
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select 'a' union select concat('a', -concat('3',4));
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a
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a
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a-34
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select 'a' union select concat('a', -0);
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a
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a
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a0
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select 'a' union select concat('a', -0.0);
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a
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a
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a0.0
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select 'a' union select concat('a', -0.0000);
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a
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a
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a0.0000
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select concat((select x from (select 'a' as x) as t1 ),
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(select y from (select 'b' as y) as t2 )) as exp from (select 1 union select 2 )
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as t3;
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exp
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ab
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ab
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create table t1(f1 varchar(6)) charset=utf8;
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insert into t1 values ("123456");
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select concat(f1, 2) a from t1 union select 'x' a from t1;
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a
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1234562
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x
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drop table t1;
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CREATE TABLE t1 (c1 varchar(100), c2 varchar(100));
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INSERT INTO t1 VALUES ('',''), ('','First'), ('Random','Random');
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SELECT * FROM t1 WHERE CONCAT(c1,' ',c2) REGEXP 'First.*';
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c1 c2
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First
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DROP TABLE t1;
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# End of 5.0 tests
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#
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# Bug #44743: Join in combination with concat does not always work
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#
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CREATE TABLE t1 (
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a VARCHAR(100) NOT NULL DEFAULT '0',
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b VARCHAR(2) NOT NULL DEFAULT '',
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c VARCHAR(2) NOT NULL DEFAULT '',
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d TEXT NOT NULL,
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PRIMARY KEY (a, b, c),
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KEY (a)
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) DEFAULT CHARSET=utf8;
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INSERT INTO t1 VALUES ('gui_A', 'a', 'b', 'str1'),
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('gui_AB', 'a', 'b', 'str2'), ('gui_ABC', 'a', 'b', 'str3');
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CREATE TABLE t2 (
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a VARCHAR(100) NOT NULL DEFAULT '',
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PRIMARY KEY (a)
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) DEFAULT CHARSET=latin1;
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INSERT INTO t2 VALUES ('A'), ('AB'), ('ABC');
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SELECT CONCAT('gui_', t2.a), t1.d FROM t2
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LEFT JOIN t1 ON t1.a = CONCAT('gui_', t2.a) AND t1.b = 'a' AND t1.c = 'b';
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CONCAT('gui_', t2.a) d
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gui_A str1
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gui_AB str2
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gui_ABC str3
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EXPLAIN SELECT CONCAT('gui_', t2.a), t1.d FROM t2
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LEFT JOIN t1 ON t1.a = CONCAT('gui_', t2.a) AND t1.b = 'a' AND t1.c = 'b';
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t2 index NULL PRIMARY 102 NULL 3 Using index
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1 SIMPLE t1 eq_ref PRIMARY,a PRIMARY 318 func,const,const 1 Using where
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DROP TABLE t1, t2;
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#
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# Bug #50096: CONCAT_WS inside procedure returning wrong data
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#
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CREATE PROCEDURE p1(a varchar(255), b int, c int)
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SET @query = CONCAT_WS(",", a, b, c);
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CALL p1("abcde", "0", "1234");
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SELECT @query;
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@query
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abcde,0,1234
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DROP PROCEDURE p1;
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#
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# Bug #40625: Concat fails on DOUBLE values in a Stored Procedure,
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# while DECIMAL works
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#
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CREATE PROCEDURE p1()
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BEGIN
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DECLARE v1 DOUBLE(10,3);
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SET v1= 100;
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SET @s = CONCAT('########################################', 40 , v1);
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SELECT @s;
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END;//
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CALL p1();
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@s
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########################################40100.000
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CALL p1();
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@s
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########################################40100.000
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DROP PROCEDURE p1;
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# End of 5.1 tests
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#
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# Start of 10.0 tests
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#
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#
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# MDEV-10306 Wrong results with combination of CONCAT, SUBSTR and CONVERT in subquery
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#
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SET @save_optimizer_switch=@@optimizer_switch;
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SET optimizer_switch='derived_merge=on';
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CREATE TABLE t1 (t VARCHAR(10) CHARSET latin1);
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INSERT INTO t1 VALUES('1234567');
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SELECT CONCAT(SUBSTR(t2, 1, 3), SUBSTR(t2, 5)) c1,
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CONCAT(SUBSTR(t2,1,3),'---',SUBSTR(t2,5)) c2
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FROM (SELECT CONVERT(t USING latin1) t2 FROM t1) sub;
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c1 c2
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123567 123---567
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT CONVERT(t USING latin1) t2 FROM t1) sub;
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c2
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1234567-1234567
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DROP TABLE t1;
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CREATE TABLE t1 (t VARCHAR(10) CHARSET latin1);
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INSERT INTO t1 VALUES('1234567');
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT CONVERT(t USING latin1) t2 FROM t1) sub;
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c2
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1234567-1234567
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT REVERSE(t) t2 FROM t1) sub;
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c2
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7654321-7654321
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT SOUNDEX(t) t2 FROM t1) sub;
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c2
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-
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT TO_BASE64(t) t2 FROM t1) sub;
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c2
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MTIzNDU2Nw==-MTIzNDU2Nw==
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT WEIGHT_STRING(t) t2 FROM t1) sub;
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c2
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1234567-1234567
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT HEX(t) t2 FROM t1) sub;
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c2
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31323334353637-31323334353637
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT QUOTE(t) t2 FROM t1) sub;
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c2
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'1234567'-'1234567'
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DROP TABLE t1;
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CREATE TABLE t1 (t VARCHAR(32) CHARSET latin1);
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INSERT INTO t1 VALUES(TO_BASE64('abcdefghi'));
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT FROM_BASE64(t) t2 FROM t1) sub;
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c2
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abcdefghi-abcdefghi
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DROP TABLE t1;
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CREATE TABLE t1 (t VARCHAR(32) CHARSET latin1);
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INSERT INTO t1 VALUES(HEX('abcdefghi'));
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UNHEX(t) t2 FROM t1) sub;
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c2
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abcdefghi-abcdefghi
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DROP TABLE t1;
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CREATE TABLE t1 (t VARCHAR(30) CHARSET latin1);
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INSERT INTO t1 VALUES('test');
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SELECT LENGTH(CONCAT(t2)) c2 FROM (SELECT AES_ENCRYPT(t,'x') t2 FROM t1) sub;
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c2
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16
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SELECT LENGTH(CONCAT(t2,'-',t2)) c2 FROM (SELECT AES_ENCRYPT(t,'x') t2 FROM t1) sub;
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c2
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33
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SELECT LENGTH(CONCAT(t2,'--',t2)) c2 FROM (SELECT AES_ENCRYPT(t,'x') t2 FROM t1) sub;
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c2
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34
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SELECT LENGTH(CONCAT(t2)) c2 FROM (SELECT AES_DECRYPT(AES_ENCRYPT(t,'x'),'x') t2 FROM t1) sub;
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c2
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4
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SELECT LENGTH(CONCAT(t2,'-',t2)) c2 FROM (SELECT AES_DECRYPT(AES_ENCRYPT(t,'x'),'x') t2 FROM t1) sub;
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c2
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9
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SELECT LENGTH(CONCAT(t2,'--',t2)) c2 FROM (SELECT AES_DECRYPT(AES_ENCRYPT(t,'x'),'x') t2 FROM t1) sub;
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c2
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10
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DROP TABLE t1;
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CREATE TABLE t1 (t VARCHAR(64) CHARSET latin1);
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INSERT INTO t1 VALUES('123456789');
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT MD5(t) t2 FROM t1) sub;
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c2
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25f9e794323b453885f5181f1b624d0b-25f9e794323b453885f5181f1b624d0b
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT FORMAT(t,2) t2 FROM t1) sub;
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c2
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123,456,789.00-123,456,789.00
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DROP TABLE t1;
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CREATE TABLE t1 (t VARCHAR(32) CHARSET latin1);
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INSERT INTO t1 VALUES('abcdefghi');
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT INSERT(t,3,4,'xxx') t2 FROM t1) sub;
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c2
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abxxxghi-abxxxghi
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DROP TABLE t1;
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CREATE TABLE t1 (t VARCHAR(10) CHARSET latin1);
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INSERT INTO t1 VALUES('abcdefghi');
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LEFT(t,10) t2 FROM t1) sub;
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c2
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abcdefghi-abcdefghi
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT RIGHT(t,10) t2 FROM t1) sub;
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c2
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abcdefghi-abcdefghi
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT SUBSTR(t,1,10) t2 FROM t1) sub;
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c2
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abcdefghi-abcdefghi
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LTRIM(t) t2 FROM t1) sub;
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c2
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abcdefghi-abcdefghi
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT RTRIM(t) t2 FROM t1) sub;
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c2
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abcdefghi-abcdefghi
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT TRIM(t) t2 FROM t1) sub;
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c2
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abcdefghi-abcdefghi
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DROP TABLE t1;
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SET optimizer_switch=@save_optimizer_switch;
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#
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# MDEV-13790 UNHEX() of a somewhat complicated CONCAT() returns NULL
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#
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SELECT UNHEX(CONCAT('414C2', HEX(8 + ROUND(RAND()*7)), SUBSTR(SHA(UUID()),6,33),HEX(2+ROUND(RAND()*8)))) IS NULL AS c1;
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c1
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0
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#
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# MDEV-13119 Wrong results with CAST(AS CHAR) and subquery
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#
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SET optimizer_switch=_utf8'derived_merge=on';
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CREATE TABLE t1 (t VARCHAR(10) CHARSET latin1);
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INSERT INTO t1 VALUES('abcdefghi');
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT CAST(t AS CHAR CHARACTER SET utf8) t2 FROM t1) sub;
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c2
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abcdefghi-abcdefghi
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DROP TABLE t1;
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SET optimizer_switch=@save_optimizer_switch;
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#
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# MDEV-13120 Wrong results with MAKE_SET() and subquery
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#
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CREATE TABLE t1 (t VARCHAR(10) CHARSET latin1);
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INSERT INTO t1 VALUES('abcdefghi');
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SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT MAKE_SET(3,t,t) t2 FROM t1) sub;
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c2
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abcdefghi,abcdefghi-abcdefghi,abcdefghi
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DROP TABLE t1;
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# Start of 10.5 tests
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#
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# MDEV-13120 Wrong results with MAKE_SET() and subquery
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#
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CREATE TABLE t1 (a DATE, b DATETIME, c VARCHAR(8));
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INSERT INTO t1 VALUES
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('1996-03-06','1985-11-16 08:00:46','foo'),
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('2028-08-26','1900-01-01 00:00:00','bar'),
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('1973-05-04','1900-01-01 00:00:00','qux');
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SELECT CONCAT_WS(' ', a, b, PASSWORD(c)) AS f FROM t1 GROUP BY f WITH ROLLUP;
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f
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1973-05-04 1900-01-01 00:00:00 *6D720C5AAB5096E70AA751206B45B484E5E0121F
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1996-03-06 1985-11-16 08:00:46 *F3A2A51A9B0F2BE2468926B4132313728C250DBF
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2028-08-26 1900-01-01 00:00:00 *E8D46CE25265E545D225A8A6F1BAF642FEBEE5CB
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NULL
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DROP TABLE t1;
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# End of 10.5 tests
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