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drop table if exists t1;
set sql_mode="MySQL40";
select @@sql_mode;
@@sql_mode
MYSQL40,HIGH_NOT_PRECEDENCE
set @@sql_mode="ANSI";
select @@sql_mode;
@@sql_mode
REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_SPACE,ANSI
SELECT 'A' || 'B';
'A' || 'B'
AB
CREATE TABLE t1 (id INT, id2 int);
SELECT id,NULL,1,1.1,'a' FROM t1 GROUP BY id;
id NULL 1 1.1 a
SELECT id FROM t1 GROUP BY id2;
id
drop table t1;
SET @@SQL_MODE="";
CREATE TABLE t1 (i int auto_increment NOT NULL, PRIMARY KEY (i));
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(11) NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`i`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
SET @@SQL_MODE="MYSQL323";
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(11) NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`i`)
) TYPE=MyISAM
SET @@SQL_MODE="MYSQL40";
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(11) NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`i`)
) TYPE=MyISAM
SET @@SQL_MODE="NO_FIELD_OPTIONS";
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`i` int(11) NOT NULL,
PRIMARY KEY (`i`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
DROP TABLE t1;
#
# MDEV-16186 Concatenation operator || returns wrong results in sql_mode=ORACLE
#
SET sql_mode=ANSI;
SELECT -1<<1||1 AS a FROM DUAL;
a
18446744073709549568
SELECT -1||0<<1 AS a FROM DUAL;
a
18446744073709551596
EXPLAIN EXTENDED SELECT -1<<1||1 AS a FROM DUAL;
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 -1 << concat(1,1) AS "a"
EXPLAIN EXTENDED SELECT -1||0<<1 AS a FROM DUAL;
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(-1,0) << 1 AS "a"
SELECT -1+1||1 AS a FROM DUAL;
a
10
SELECT -1||0+1 AS a FROM DUAL;
a
-9
EXPLAIN EXTENDED SELECT -1+1||1 AS a FROM DUAL;
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 -1 + concat(1,1) AS "a"
EXPLAIN EXTENDED SELECT -1||0+1 AS a FROM DUAL;
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(-1,0) + 1 AS "a"
SELECT 1*1||-1 AS a FROM DUAL;
a
1
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: '1-1'
SELECT 1||1*-1 AS a FROM DUAL;
a
-11
EXPLAIN EXTENDED SELECT 1*1||-1 AS a FROM DUAL;
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 1 * concat(1,-1) AS "a"
EXPLAIN EXTENDED SELECT 1||1*-1 AS a FROM DUAL;
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(1,1) * -1 AS "a"
SELECT -1^1||1 AS a FROM DUAL;
a
18446744073709551604
SELECT -1||0^1 AS a FROM DUAL;
a
18446744073709551607
EXPLAIN EXTENDED SELECT -1^1||1 AS a FROM DUAL;
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 -1 ^ concat(1,1) AS "a"
EXPLAIN EXTENDED SELECT -1||0^1 AS a FROM DUAL;
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(-1,0) ^ 1 AS "a"
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