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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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6
mysql-test/r/constraints.result
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@ -3,7 +3,7 @@ create table t1 (a int check (a>0));
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL CHECK ((`a` > 0))
`a` int(11) DEFAULT NULL CHECK (`a` > 0)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
insert into t1 values (1);
insert into t1 values (0);
@ -15,7 +15,7 @@ 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
insert into t1 values (1,0);
insert into t1 values (0,1);
@ -27,7 +27,7 @@ Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` int(11) DEFAULT NULL,
CONSTRAINT `abc` CHECK ((`a` > `b`))
CONSTRAINT `abc` CHECK (`a` > `b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
insert into t1 values (1,0);
insert into t1 values (0,1);