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215 lines
6.9 KiB
Text
215 lines
6.9 KiB
Text
drop table if exists t1,t2;
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create table t1(str varchar(10) default 'def',strnull varchar(10),intg int default '10',rel double default '3.14');
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insert into t1 values ('','',0,0.0);
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select default(str), default(strnull), default(intg), default(rel) from t1;
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default(str) default(strnull) default(intg) default(rel)
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def NULL 10 3.14
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explain extended select default(str), default(strnull), default(intg), default(rel) from t1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 system NULL NULL NULL NULL 1 100.00
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Warnings:
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Note 1003 select default(`test`.`t1`.`str`) AS `default(str)`,default(`test`.`t1`.`strnull`) AS `default(strnull)`,default(`test`.`t1`.`intg`) AS `default(intg)`,default(`test`.`t1`.`rel`) AS `default(rel)` from dual
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select * from t1 where str <> default(str);
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str strnull intg rel
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0 0
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explain select * from t1 where str <> default(str);
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 system NULL NULL NULL NULL 1
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create view v1 as select default(str), default(strnull), default(intg), default(rel) from t1;
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select * from v1;
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default(str) default(strnull) default(intg) default(rel)
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def NULL 10 3.14
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show create view v1;
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View Create View character_set_client collation_connection
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v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select default(`t1`.`str`) AS `default(str)`,default(`t1`.`strnull`) AS `default(strnull)`,default(`t1`.`intg`) AS `default(intg)`,default(`t1`.`rel`) AS `default(rel)` from `t1` latin1 latin1_swedish_ci
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drop view v1;
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drop table t1;
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CREATE TABLE t1 (id int(11), s varchar(20));
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INSERT INTO t1 VALUES (1, 'one'), (2, 'two'), (3, 'three');
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SELECT s, 32 AS mi FROM t1 GROUP BY s HAVING DEFAULT(mi) IS NULL;
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ERROR HY000: Field 'mi' doesn't have a default value
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DROP TABLE t1;
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#
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# Start of 10.2 tests
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#
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set timestamp=unix_timestamp('2001-01-01 10:20:30.123456');
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create table t1 (a int default 1, b int default (a+1),
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c varchar(100) default 'foo', d text default 'bar',
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e timestamp default now(), f timestamp(6) default now(2));
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insert t1 () values ();
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insert t1 (a) values (10);
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select default(a),default(b),default(c),default(d),default(e),default(f) from t1;
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default(a) default(b) default(c) default(d) default(e) default(f)
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1 2 foo bar 2001-01-01 10:20:30 2001-01-01 10:20:30.120000
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1 11 foo bar 2001-01-01 10:20:30 2001-01-01 10:20:30.120000
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drop table t1;
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#
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# MDEV-21639 DEFAULT(col) evaluates to a bad value in WHERE clause
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#
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CREATE TABLE t1 (a BIGINT NOT NULL DEFAULT (IF(false,UNIX_TIMESTAMP(),10)));
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INSERT INTO t1 VALUES (10000);
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SELECT
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a,
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DEFAULT(a),
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CASE WHEN a THEN DEFAULT(a) END AS c,
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CASE WHEN a THEN DEFAULT(a) END = 10 AS ce
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FROM t1;
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a DEFAULT(a) c ce
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10000 10 10 1
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SELECT a FROM t1 WHERE CASE WHEN a THEN DEFAULT(a) END=10;
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a
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10000
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DROP TABLE t1;
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CREATE TABLE t1 (a DOUBLE NOT NULL DEFAULT (IF(false,UNIX_TIMESTAMP(),10)));
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INSERT INTO t1 VALUES (10000);
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SELECT
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a,
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DEFAULT(a),
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CASE WHEN a THEN DEFAULT(a) END AS c,
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CASE WHEN a THEN DEFAULT(a) END = 10 AS ce
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FROM t1;
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a DEFAULT(a) c ce
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10000 10 10 1
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SELECT a FROM t1 WHERE CASE WHEN a THEN DEFAULT(a) END=10;
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a
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10000
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DROP TABLE t1;
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CREATE TABLE t1 (a DECIMAL(10,0) NOT NULL DEFAULT (IF(false,UNIX_TIMESTAMP(),10)));
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INSERT INTO t1 VALUES (10000);
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SELECT
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a,
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DEFAULT(a),
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CASE WHEN a THEN DEFAULT(a) END AS c,
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CASE WHEN a THEN DEFAULT(a) END = 10 AS ce
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FROM t1;
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a DEFAULT(a) c ce
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10000 10 10 1
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SELECT a FROM t1 WHERE CASE WHEN a THEN DEFAULT(a) END=10;
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a
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10000
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DROP TABLE t1;
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CREATE TABLE t1 (a VARCHAR(32) NOT NULL DEFAULT (IF(false,UNIX_TIMESTAMP(),10)));
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INSERT INTO t1 VALUES (10000);
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SELECT
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a,
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DEFAULT(a),
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CASE WHEN a THEN DEFAULT(a) END AS c,
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CASE WHEN a THEN DEFAULT(a) END = '10' AS ce
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FROM t1;
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a DEFAULT(a) c ce
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10000 10 10 1
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SELECT a FROM t1 WHERE CASE WHEN a THEN DEFAULT(a) END='10';
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a
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10000
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DROP TABLE t1;
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CREATE TABLE t1 (a DATE NOT NULL DEFAULT (IF(false,UNIX_TIMESTAMP()%10,DATE'2001-01-01')));
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INSERT INTO t1 VALUES ('2000-01-01');
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SELECT
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a,
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DEFAULT(a),
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CASE WHEN a THEN DEFAULT(a) END AS c,
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CASE WHEN a THEN DEFAULT(a) END = '2001-01-01' AS ce
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FROM t1;
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a DEFAULT(a) c ce
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2000-01-01 2001-01-01 2001-01-01 1
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SELECT a FROM t1 WHERE CASE WHEN a THEN DEFAULT(a) END='2001-01-01';
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a
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2000-01-01
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DROP TABLE t1;
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CREATE TABLE t1 (a TIME NOT NULL DEFAULT (IF(false,UNIX_TIMESTAMP()%10,TIME'10:20:30')));
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INSERT INTO t1 VALUES ('10:00:00');
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SELECT
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a,
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DEFAULT(a),
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CASE WHEN a THEN DEFAULT(a) END AS c,
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CASE WHEN a THEN DEFAULT(a) END = '10:20:30' AS ce
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FROM t1;
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a DEFAULT(a) c ce
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10:00:00 10:20:30 10:20:30 1
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SELECT a FROM t1 WHERE CASE WHEN a THEN DEFAULT(a) END='10:20:30';
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a
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10:00:00
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DROP TABLE t1;
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CREATE TABLE t1 (a DATETIME NOT NULL DEFAULT (IF(false,UNIX_TIMESTAMP(),TIMESTAMP'2001-01-01 10:20:30')));
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INSERT INTO t1 VALUES ('2000-01-01 10:00:00');
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SELECT
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a,
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DEFAULT(a),
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CASE WHEN a THEN DEFAULT(a) END AS c,
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CASE WHEN a THEN DEFAULT(a) END = '2001-01-01 10:20:30' AS ce
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FROM t1;
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a DEFAULT(a) c ce
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2000-01-01 10:00:00 2001-01-01 10:20:30 2001-01-01 10:20:30 1
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SELECT a FROM t1 WHERE CASE WHEN a THEN DEFAULT(a) END='2001-01-01 10:20:30';
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a
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2000-01-01 10:00:00
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DROP TABLE t1;
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CREATE TABLE t1 (a INT NOT NULL DEFAULT (IF(false,UNIX_TIMESTAMP(),FALSE)));
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INSERT INTO t1 VALUES (10);
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SELECT
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a,
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DEFAULT(a),
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CASE WHEN a THEN DEFAULT(a) END AS c,
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CASE WHEN a THEN DEFAULT(a) END IS FALSE AS ce
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FROM t1;
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a DEFAULT(a) c ce
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10 0 0 1
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SELECT a FROM t1 WHERE CASE WHEN a THEN DEFAULT(a) END IS FALSE;
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a
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10
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DROP TABLE t1;
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#
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# MDEV-21028 Server crashes in Query_arena::set_query_arena upon SELECT from view
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#
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create table t1 (a datetime default current_timestamp);
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insert into t1 () values (),();
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create algorithm=temptable view v1 as select * from t1;
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create algorithm=merge view v2 as select * from t1;
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select default(a) = now() from v1;
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default(a) = now()
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1
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1
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select default(a) = now() from v2;
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default(a) = now()
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1
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1
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drop view v1, v2;
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drop table t1;
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create table t1 (v1 timestamp not null default now() on update now()) select 'x';
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`v1` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
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`x` varchar(1) CHARACTER SET latin1 COLLATE latin1_swedish_ci NOT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
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select default(v1) from (select v1 from t1) dt;
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default(v1)
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2001-01-01 10:20:30
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select default(v1) from (select v1 from t1 group by v1) dt;
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default(v1)
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2001-01-01 10:20:30
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drop table t1;
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create table t1 (a text default '');
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create algorithm=temptable view v1 as select * from t1;
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insert into t1 values ('a');
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select default(a) from v1;
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default(a)
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drop view v1;
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drop table t1;
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#
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# MDEV-28403 ASAN heap-use-after-free in String::copy / get_field_default_value
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#
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create table t (a blob default 'x');
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create view v as select * from t;
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insert into t () values ();
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update t set a = default;
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select table_name,column_name,column_default from information_schema.columns where table_name = 'v';
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table_name v
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column_name a
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column_default 'x'
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drop view v;
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drop table t;
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#
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# End of 10.2 tests
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#
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