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150 lines
5.1 KiB
150 lines
5.1 KiB
drop table if exists t1;
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CREATE TABLE t1 (id CHAR(12) not null, PRIMARY KEY (id));
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insert into t1 values ('000000000001'),('000000000002');
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analyze table t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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explain select * from t1 where id=000000000001;
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 NULL index PRIMARY PRIMARY 48 NULL 2 50.00 Using where; Using index
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Warnings:
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Warning 1739 Cannot use ref access on index 'PRIMARY' due to type or collation conversion on field 'id'
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Warning 1739 Cannot use range access on index 'PRIMARY' due to type or collation conversion on field 'id'
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Note 1003 /* select#1 */ select `test`.`t1`.`id` AS `id` from `test`.`t1` where (`test`.`t1`.`id` = 1)
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select * from t1 where id=000000000001;
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id
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000000000001
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delete from t1 where id=000000000002;
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select * from t1;
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id
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000000000001
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drop table t1;
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set names latin1;
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SELECT 'a' = 'a ';
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'a' = 'a '
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1
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SELECT 'a\0' < 'a';
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'a\0' < 'a'
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1
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SELECT 'a\0' < 'a ';
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'a\0' < 'a '
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1
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SELECT 'a\t' < 'a';
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'a\t' < 'a'
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1
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SELECT 'a\t' < 'a ';
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'a\t' < 'a '
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1
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CREATE TABLE t1 (a char(10) not null) charset latin1;
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INSERT INTO t1 VALUES ('a'),('a\0'),('a\t'),('a ');
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SELECT hex(a),STRCMP(a,'a'), STRCMP(a,'a ') FROM t1;
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hex(a) STRCMP(a,'a') STRCMP(a,'a ')
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61 0 0
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6100 -1 -1
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6109 -1 -1
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61 0 0
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DROP TABLE t1;
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set names default;
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SELECT CHAR(31) = '', '' = CHAR(31);
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CHAR(31) = '' '' = CHAR(31)
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0 0
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SELECT CHAR(30) = '', '' = CHAR(30);
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CHAR(30) = '' '' = CHAR(30)
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0 0
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create table t1 (a tinyint(1),b binary(1));
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Warnings:
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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insert into t1 values (0x01,0x01);
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select * from t1 where a=b;
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a b
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Warnings:
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Warning 1292 Truncated incorrect DOUBLE value: '\x01'
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select * from t1 where a=b and b=0x01;
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a b
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Warnings:
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Warning 1292 Truncated incorrect DOUBLE value: '\x01'
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drop table if exists t1;
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CREATE TABLE t1 (b int(2) zerofill, c int(2) zerofill);
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Warnings:
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Warning 1681 The ZEROFILL attribute is deprecated and will be removed in a future release. Use the LPAD function to zero-pad numbers, or store the formatted numbers in a CHAR column.
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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Warning 1681 The ZEROFILL attribute is deprecated and will be removed in a future release. Use the LPAD function to zero-pad numbers, or store the formatted numbers in a CHAR column.
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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INSERT INTO t1 (b,c) VALUES (1,2), (1,1), (2,2);
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SELECT CONCAT(b,c), CONCAT(b,c) = '0101' FROM t1;
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CONCAT(b,c) CONCAT(b,c) = '0101'
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0102 0
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0101 1
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0202 0
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analyze table t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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EXPLAIN SELECT b,c FROM t1 WHERE b = 1 AND CONCAT(b,c) = '0101';
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 NULL ALL NULL NULL NULL NULL x 33.33 Using where
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Warnings:
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Note 1003 /* select#1 */ select `test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c` from `test`.`t1` where ((`test`.`t1`.`b` = 1) and (concat('01',`test`.`t1`.`c`) = '0101'))
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SELECT b,c FROM t1 WHERE b = 1 AND CONCAT(b,c) = '0101';
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b c
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01 01
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CREATE TABLE t2 (a int);
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INSERT INTO t2 VALUES (1),(2);
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SELECT a,
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(SELECT COUNT(*) FROM t1
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WHERE b = t2.a AND CONCAT(b,c) = CONCAT('0',t2.a,'01')) x
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FROM t2 ORDER BY a;
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a x
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1 1
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2 0
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analyze table t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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analyze table t2;
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Table Op Msg_type Msg_text
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test.t2 analyze status OK
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EXPLAIN
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SELECT a,
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(SELECT COUNT(*) FROM t1
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WHERE b = t2.a AND CONCAT(b,c) = CONCAT('0',t2.a,'01')) x
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FROM t2 ORDER BY a;
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t2 NULL ALL NULL NULL NULL NULL x 100.00 Using filesort
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2 DEPENDENT SUBQUERY t1 NULL ALL NULL NULL NULL NULL x 33.33 Using where
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Warnings:
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Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1
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Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1
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Note 1003 /* select#1 */ select `test`.`t2`.`a` AS `a`,(/* select#2 */ select count(0) from `test`.`t1` where ((`test`.`t1`.`b` = `test`.`t2`.`a`) and (concat(`test`.`t1`.`b`,`test`.`t1`.`c`) = concat('0',`test`.`t2`.`a`,'01')))) AS `x` from `test`.`t2` order by `test`.`t2`.`a`
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DROP TABLE t1,t2;
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SET sql_mode = 'NO_ENGINE_SUBSTITUTION';
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CREATE TABLE t1 (a TIMESTAMP);
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INSERT INTO t1 VALUES (NOW()),(NOW()),(NOW());
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SELECT * FROM t1 WHERE a > '2008-01-01' AND a = '0000-00-00';
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a
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DROP TABLE t1;
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SET sql_mode = default;
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End of 5.0 tests
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CREATE TABLE t1(a INT ZEROFILL);
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Warnings:
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Warning 1681 The ZEROFILL attribute is deprecated and will be removed in a future release. Use the LPAD function to zero-pad numbers, or store the formatted numbers in a CHAR column.
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SELECT 1 FROM t1 WHERE t1.a IN (1, t1.a) AND t1.a=2;
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1
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DROP TABLE t1;
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Bug #27452148: ASSERTION FAILED: (SLEN % 4) == 0 IN
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MY_STRNNCOLLSP_UTF32_BIN
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SET NAMES latin1;
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CREATE TABLE t1(a CHAR(10) CHARACTER SET utf32 COLLATE utf32_bin);
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INSERT INTO t1 VALUES('a'),('b'),('c');
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SELECT ROW('1', '1') > ROW(a, '1') FROM t1;
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ROW('1', '1') > ROW(a, '1')
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0
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0
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0
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SELECT ROW(a, '1') > ROW('1', '1') FROM t1;
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ROW(a, '1') > ROW('1', '1')
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1
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1
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1
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DROP TABLE t1;
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SET NAMES default;
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