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Item::print(): remove redundant parentheses

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by introducing new Item::precedence() method and using it
to decide whether parentheses are required
This commit is contained in:
Sergei Golubchik
2016-11-27 19:50:10 +01:00
parent 1db438c833
commit 180065ebb0
188 changed files with 2684 additions and 2553 deletions
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54
mysql-test/r/check_constraint.result
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@ -3,10 +3,10 @@ create table t1 (a int check(a>10), b int check (b > 20), constraint `min` check
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL CHECK ((`a` > 10)),
`b` int(11) DEFAULT NULL CHECK ((`b` > 20)),
CONSTRAINT `min` CHECK (((`a` + `b`) > 100)),
CONSTRAINT `max` CHECK (((`a` + `b`) < 500))
`a` int(11) DEFAULT NULL CHECK (`a` > 10),
`b` int(11) DEFAULT NULL CHECK (`b` > 20),
CONSTRAINT `min` CHECK (`a` + `b` > 100),
CONSTRAINT `max` CHECK (`a` + `b` < 500)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
insert into t1 values (100,100);
insert into t1 values (1,1);
@ -52,12 +52,12 @@ set check_constraint_checks=@save_check_constraint;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL CHECK ((`a` > 10)),
`b` int(11) DEFAULT NULL CHECK ((`b` > 20)),
`c` int(11) DEFAULT 0 CHECK ((`c` < 10)),
CONSTRAINT `min` CHECK (((`a` + `b`) > 100)),
CONSTRAINT `max` CHECK (((`a` + `b`) < 500)),
CONSTRAINT `CONSTRAINT_1` CHECK ((((`a` + `b`) + `c`) < 500))
`a` int(11) DEFAULT NULL CHECK (`a` > 10),
`b` int(11) DEFAULT NULL CHECK (`b` > 20),
`c` int(11) DEFAULT 0 CHECK (`c` < 10),
CONSTRAINT `min` CHECK (`a` + `b` > 100),
CONSTRAINT `max` CHECK (`a` + `b` < 500),
CONSTRAINT `CONSTRAINT_1` CHECK (`a` + `b` + `c` < 500)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
insert into t1 values(105,105,105);
ERROR 23000: CONSTRAINT `c` failed for `test`.`t1`
@ -75,12 +75,12 @@ create table t2 like t1;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` int(11) DEFAULT NULL CHECK ((`a` > 10)),
`b` int(11) DEFAULT NULL CHECK ((`b` > 20)),
`c` int(11) DEFAULT 0 CHECK ((`c` < 10)),
CONSTRAINT `min` CHECK (((`a` + `b`) > 100)),
CONSTRAINT `max` CHECK (((`a` + `b`) < 500)),
CONSTRAINT `CONSTRAINT_1` CHECK ((((`a` + `b`) + `c`) < 500))
`a` int(11) DEFAULT NULL CHECK (`a` > 10),
`b` int(11) DEFAULT NULL CHECK (`b` > 20),
`c` int(11) DEFAULT 0 CHECK (`c` < 10),
CONSTRAINT `min` CHECK (`a` + `b` > 100),
CONSTRAINT `max` CHECK (`a` + `b` < 500),
CONSTRAINT `CONSTRAINT_1` CHECK (`a` + `b` + `c` < 500)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
alter table t2 drop constraint c;
ERROR 42000: Can't DROP CONSTRAINT `c`; check that it exists
@ -91,11 +91,11 @@ alter table t2 drop constraint min;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` int(11) DEFAULT NULL CHECK ((`a` > 10)),
`b` int(11) DEFAULT NULL CHECK ((`b` > 20)),
`c` int(11) DEFAULT 0 CHECK ((`c` < 10)),
CONSTRAINT `max` CHECK (((`a` + `b`) < 500)),
CONSTRAINT `CONSTRAINT_1` CHECK ((((`a` + `b`) + `c`) < 500))
`a` int(11) DEFAULT NULL CHECK (`a` > 10),
`b` int(11) DEFAULT NULL CHECK (`b` > 20),
`c` int(11) DEFAULT 0 CHECK (`c` < 10),
CONSTRAINT `max` CHECK (`a` + `b` < 500),
CONSTRAINT `CONSTRAINT_1` CHECK (`a` + `b` + `c` < 500)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1,t2;
create or replace table t1 (a int, b int, constraint check (a>b));
@ -104,7 +104,7 @@ Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` int(11) DEFAULT NULL,
CONSTRAINT `CONSTRAINT_1` CHECK ((`a` > `b`))
CONSTRAINT `CONSTRAINT_1` CHECK (`a` > `b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
create or replace table t1 (a int, b int,
constraint CONSTRAINT_1 check (a>1),
@ -114,8 +114,8 @@ Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` int(11) DEFAULT NULL,
CONSTRAINT `CONSTRAINT_1` CHECK ((`a` > 1)),
CONSTRAINT `CONSTRAINT_2` CHECK ((`b` > 1))
CONSTRAINT `CONSTRAINT_1` CHECK (`a` > 1),
CONSTRAINT `CONSTRAINT_2` CHECK (`b` > 1)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
create or replace table t1 (a int, b int,
constraint CONSTRAINT_1 check (a>1),
@ -126,8 +126,8 @@ Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` int(11) DEFAULT NULL,
CONSTRAINT `CONSTRAINT_1` CHECK ((`a` > 1)),
CONSTRAINT `CONSTRAINT_3` CHECK ((`b` > 1)),
CONSTRAINT `CONSTRAINT_2` CHECK ((`a` > `b`))
CONSTRAINT `CONSTRAINT_1` CHECK (`a` > 1),
CONSTRAINT `CONSTRAINT_3` CHECK (`b` > 1),
CONSTRAINT `CONSTRAINT_2` CHECK (`a` > `b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;