mirror of
https://github.com/MariaDB/server.git
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326 lines
9.3 KiB
Plaintext
326 lines
9.3 KiB
Plaintext
#
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# MRR/MyISAM tests.
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#
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--disable_warnings
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drop table if exists t0, t1, t2, t3;
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--enable_warnings
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set @myisam_mrr_tmp=@@optimizer_switch;
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set optimizer_switch='mrr=on,mrr_sort_keys=on,index_condition_pushdown=on';
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set @mrr_buffer_size_save= @@mrr_buffer_size;
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set mrr_buffer_size=79;
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-- source include/mrr_tests.inc
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set @@mrr_buffer_size= @mrr_buffer_size_save;
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#
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# BUG#30622: Incorrect query results for MRR + filesort
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#
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CREATE TABLE t1 (
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ID int(10) unsigned NOT NULL AUTO_INCREMENT,
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col1 int(10) unsigned DEFAULT NULL,
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key1 int(10) unsigned NOT NULL DEFAULT '0',
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key2 int(10) unsigned DEFAULT NULL,
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text1 text,
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text2 text,
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col2 smallint(6) DEFAULT '100',
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col3 enum('headers','bodyandsubject') NOT NULL DEFAULT 'bodyandsubject',
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col4 tinyint(3) unsigned NOT NULL DEFAULT '0',
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PRIMARY KEY (ID),
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KEY (key1),
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KEY (key2)
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) ENGINE=MyISAM AUTO_INCREMENT=6 DEFAULT CHARSET=utf8;
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INSERT INTO t1 VALUES
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(1,NULL,1130,NULL,'Hello',NULL,100,'bodyandsubject',0),
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(2,NULL,1130,NULL,'bye',NULL,100,'bodyandsubject',0),
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(3,NULL,1130,NULL,'red',NULL,100,'bodyandsubject',0),
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(4,NULL,1130,NULL,'yellow',NULL,100,'bodyandsubject',0),
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(5,NULL,1130,NULL,'blue',NULL,100,'bodyandsubject',0);
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select * FROM t1 WHERE key1=1130 AND col1 IS NULL ORDER BY text1;
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drop table t1;
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--echo
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--echo BUG#37851: Crash in test_if_skip_sort_order tab->select is zero
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--echo
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CREATE TABLE t1 (
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pk int(11) NOT NULL AUTO_INCREMENT,
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PRIMARY KEY (pk)
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);
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INSERT INTO t1 VALUES (1);
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CREATE TABLE t2 (
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pk int(11) NOT NULL AUTO_INCREMENT,
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int_key int(11) DEFAULT NULL,
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PRIMARY KEY (pk),
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KEY int_key (int_key)
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);
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INSERT INTO t2 VALUES (1,1),(2,6),(3,0);
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EXPLAIN EXTENDED
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SELECT MIN(t1.pk)
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FROM t1 WHERE EXISTS (
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SELECT t2.pk
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FROM t2
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WHERE t2.int_key IS NULL
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GROUP BY t2.pk
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);
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DROP TABLE t1, t2;
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-- echo #
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-- echo # BUG#42048 Discrepancy between MyISAM and Maria's ICP implementation
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-- echo #
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1 (a int, b char(20), filler char(200), key(a,b(10)));
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insert into t1 select A.a + 10*(B.a + 10*C.a), 'bbb','filler' from t0 A, t0 B, t0 C;
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update t1 set b=repeat(char(65+a), 20) where a < 25;
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--echo This must show range + using index condition:
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explain select * from t1 where a < 10 and b = repeat(char(65+a), 20);
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select * from t1 where a < 10 and b = repeat(char(65+a), 20);
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drop table t0,t1;
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-- echo #
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-- echo # BUG#41136: ORDER BY + range access: EXPLAIN shows "Using MRR" while MRR is actually not used
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-- echo #
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1 (a int, b int, key(a));
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insert into t1 select A.a + 10 *(B.a + 10*C.a), A.a + 10 *(B.a + 10*C.a) from t0 A, t0 B, t0 C;
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-- echo This mustn't show "Using MRR":
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explain select * from t1 where a < 20 order by a;
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drop table t0, t1;
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-- echo #
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-- echo # Part of MWL#67: DS-MRR backport: add an @@optimizer_switch flag for
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-- echo # index_condition pushdown:
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-- echo # - engine_condition_pushdown does not affect ICP
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# Check that optimizer_switch is present
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select @@optimizer_switch like '%index_condition_pushdown=on%';
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# Check if it affects ICP
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1 (a int, b int, key(a));
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insert into t1 select A.a + 10 *(B.a + 10*C.a), A.a + 10 *(B.a + 10*C.a) from t0 A, t0 B, t0 C;
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-- echo A query that will use ICP:
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explain select * from t1 where a < 20;
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set @save_optimizer_switch=@@optimizer_switch;
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set optimizer_switch='index_condition_pushdown=off';
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explain select * from t1 where a < 20;
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set optimizer_switch='index_condition_pushdown=on';
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explain select * from t1 where a < 20;
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set optimizer_switch=@save_optimizer_switch;
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--echo #
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--echo # BUG#629684: Unreachable code in multi_range_read.cc in maria-5.3-dsmrr-cpk
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--echo #
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delete from t0 where a > 2;
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insert into t0 values (NULL),(NULL);
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insert into t1 values (NULL, 1234), (NULL, 5678);
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set @save_join_cache_level=@@join_cache_level;
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set @@join_cache_level=6;
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explain
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select * from t0, t1 where t0.a<=>t1.a;
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select * from t0, t1 where t0.a<=>t1.a;
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set @@join_cache_level=@save_join_cache_level;
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drop table t0, t1;
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--echo #
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--echo # BUG#625841: Assertion `!table || (!table->read_set || bitmap_is_set
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--echo # (table->read_set, field_index))' on REPLACE ... SELECT with MRR
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--echo #
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1 (
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key1 varchar(10),
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col1 char(255), col2 char(255),
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col3 char(244), col4 char(255),
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key(key1)
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);
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create table t2 like t1;
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insert into t1
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select
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1000+A.a+100*B.a + 10*C.a,
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'col1val', 'col2val',
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'col3val', 'col4val'
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from t0 A, t0 B, t0 C;
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REPLACE INTO t2(col2,col3,col4)
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SELECT col2,col3,col4
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FROM t1
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WHERE `key1` LIKE CONCAT( LEFT( '1' , 7 ) , '%' )
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ORDER BY col1 LIMIT 7;
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drop table t0, t1, t2;
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--echo #
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--echo # BUG#670417: Diverging results in maria-5.3-mwl128-dsmrr-cpk with join buffer (incremental, BKA join)
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--echo #
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set @save_join_cache_level = @@join_cache_level;
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set join_cache_level = 6;
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set @save_join_buffer_size=@@join_buffer_size;
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--disable_warnings
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set join_buffer_size = 136;
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--enable_warnings
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CREATE TABLE t1 (
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pk int(11) NOT NULL AUTO_INCREMENT,
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col_int_key int(11) NOT NULL,
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col_varchar_key varchar(1) NOT NULL,
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col_varchar_nokey varchar(1) NOT NULL,
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PRIMARY KEY (pk),
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KEY col_varchar_key (col_varchar_key,col_int_key)
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);
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INSERT INTO t1 VALUES
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(10,8,'v','v'),(11,8,'f','f'), (12,5,'v','v'),
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(13,8,'s','s'),(14,8,'a','a'),(15,6,'p','p'),
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(16,7,'z','z'),(17,2,'a','a'),(18,5,'h','h'),
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(19,7,'h','h'),(20,2,'v','v'),(21,9,'v','v'),
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(22,142,'b','b'),(23,3,'y','y'),(24,0,'v','v'),
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(25,3,'m','m'),(26,5,'z','z'),(27,9,'n','n'),
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(28,1,'d','d'),(29,107,'a','a');
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INSERT INTO t1 VALUES
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(110,8,'v','v'),(111,8,'f','f'), (112,5,'v','v'),
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(113,8,'s','s'),(114,8,'a','a'),(115,6,'p','p'),
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(116,7,'z','z'),(117,2,'a','a'),(118,5,'h','h'),
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(119,7,'h','h'),(120,2,'v','v'),(121,9,'v','v'),
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(122,142,'b','b'),(123,3,'y','y'),(124,0,'v','v'),
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(125,3,'m','m'),(126,5,'z','z'),(127,9,'n','n'),
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(128,1,'d','d'),(129,107,'a','a');
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SELECT COUNT(*)
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FROM
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t1 AS table2, t1 AS table3
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where
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table3.col_varchar_key = table2.col_varchar_key AND
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table3.col_varchar_key = table2.col_varchar_nokey AND
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table3.pk<>0;
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EXPLAIN SELECT COUNT(*)
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FROM
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t1 AS table2, t1 AS table3
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where
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table3.col_varchar_key = table2.col_varchar_key AND
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table3.col_varchar_key = table2.col_varchar_nokey AND
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table3.pk<>0;
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set join_cache_level= @save_join_cache_level;
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set join_buffer_size= @save_join_buffer_size;
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drop table t1;
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--echo #
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--echo # BUG#730133: Wrong result with jkl = 7, BKA, ICP in maria-5.3 + compound index
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--echo #
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set @tmp_730133_jcl= @@join_cache_level;
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set join_cache_level = 7;
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set @tmp_730133_os= @@optimizer_switch;
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set optimizer_switch= 'join_cache_hashed=off,join_cache_bka=on,index_condition_pushdown=on,optimize_join_buffer_size=on';
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CREATE TABLE t1 (f1 int, f2 int, f3 int, f4 int, f5 int, KEY (f4,f3));
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INSERT IGNORE INTO t1 VALUES ('2','9','5','0','0'),('4','7','0','0','0'),
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('6','97','190','0','0'),('7','3','6','0','0'),('11','101','186','0','0'),
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('14','194','226','0','0'),('15','148','133','0','0'),
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('16','9','6','0','0'),('17','9','3','0','0'),('18','1','8','0','0'),
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('19','1','5','0','0'),('20','5','7','0','0');
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explain
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SELECT COUNT(alias2.f2)
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FROM
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t1 STRAIGHT_JOIN
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t1 AS alias3 STRAIGHT_JOIN
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t1 AS alias2 FORCE KEY (f4)
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WHERE
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alias2.f4=alias3.f5 AND
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alias2.f3 > alias3.f1;
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SELECT COUNT(alias2.f2)
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FROM
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t1 STRAIGHT_JOIN
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t1 AS alias3 STRAIGHT_JOIN
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t1 AS alias2 FORCE KEY (f4)
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WHERE
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alias2.f4=alias3.f5 AND
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alias2.f3 > alias3.f1;
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set @@join_cache_level= @tmp_730133_jcl;
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set @@optimizer_switch= @tmp_730133_os;
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drop table t1;
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--echo #
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--echo # Test of MRR handler counters
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--echo #
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flush status;
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show status like 'Handler_mrr%';
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create table t0 (a int);
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insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t1 (a int, b int, filler char(200), key(a));
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insert into t1
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select A.a+10*B.a+100*C.a+1000*D.a, 123,'filler' from t0 A, t0 B, t0 C, t0 D;
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explain select sum(b) from t1 where a < 10;
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--echo # This should show one MRR scan and no re-fills:
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flush status;
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select sum(b) from t1 where a < 10;
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show status like 'handler_mrr%';
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set @mrr_buffer_size_save= @@mrr_buffer_size;
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--disable_warnings
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set mrr_buffer_size=128;
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--enable_warnings
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explain select sum(b) from t1 where a < 1600;
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--echo # This should show one MRR scan and one extra rowid sort:
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flush status;
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select sum(b) from t1 where a < 1600;
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show status like 'handler_mrr%';
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set @@mrr_buffer_size= @mrr_buffer_size_save;
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--echo #Now, let's check BKA:
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set @join_cache_level_save= @@join_cache_level;
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set @join_buffer_size_save= @@join_buffer_size;
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set join_cache_level=6;
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explain select sum(t1.b) from t0,t1 where t0.a=t1.a;
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flush status;
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select sum(t1.b) from t0,t1 where t0.a=t1.a;
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show status like 'handler_mrr%';
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--disable_warnings
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set join_buffer_size=10;
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--enable_warnings
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explain select sum(t1.b) from t0,t1 where t0.a=t1.a;
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flush status;
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select sum(t1.b) from t0,t1 where t0.a=t1.a;
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--replace_result 1 1or2 2 1or2
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show status like 'handler_mrr%';
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set join_cache_level= @join_cache_level_save;
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set join_buffer_size= @join_buffer_size_save;
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drop table t0, t1;
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## This must be last line in the file:
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set optimizer_switch= @myisam_mrr_tmp;
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