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f0f2072d1f
Reason for the problem was that the hash of changed files in the key cache was too small (was 128). Fixed by making the hash size larger and changeable. - Introduced key-cache-file-hash-size (default 512) for MyISAM and aria_pagecache_file_hash_size (default 512) for Aria. - Added new status variable "Feature_delay_key_write" which counts number of tables opened that are using delay_key_write mysql-test/r/features.result: Added test of Feature_delay_key_write mysql-test/r/key_cache.result: Updated tests as the number of blocks has changed mysql-test/r/mysqld--help.result: Updated result mysql-test/suite/maria/maria3.result: Updated result mysql-test/suite/sys_vars/r/key_cache_file_hash_size_basic.result: Test new variable mysql-test/suite/sys_vars/t/aria_pagecache_file_hash_size_basic.test: Test new variable mysql-test/suite/sys_vars/t/key_cache_file_hash_size_basic.test: Test new variable mysql-test/t/features.test: Added test of Feature_delay_key_write mysql-test/t/key_cache.test: Updated tests as the number of blocks has changed mysys/mf_keycache.c: Made CHANGED_BLOCKS_HASH dynamic sql/handler.cc: Updated call to init_key_cache() sql/mysqld.cc: Added "Feature_delay_key_write" Added support for key-cache-file-hash-size sql/mysqld.h: Added support for key-cache-file-hash-size sql/sql_class.h: Added feature_files_opened_with_delayed_keys sql/sys_vars.cc: Added key_cache_file_hash_size storage/maria/ha_maria.cc: Added pagecache_file_hash_size Added counting of files with delay_key_write storage/maria/ma_checkpoint.c: Fixed compiler warning storage/maria/ma_pagecache.c: Made PAGECACHE_CHANGED_BLOCKS_HASH into a variable storage/maria/ma_pagecache.h: Made PAGECACHE_CHANGED_BLOCKS_HASH into a variable storage/maria/ma_rt_test.c: Updated parameters for init_pagecache() storage/maria/ma_test1.c: Updated parameters for init_pagecache() storage/maria/ma_test2.c: Updated parameters for init_pagecache() storage/maria/ma_test3.c: Updated parameters for init_pagecache() storage/maria/maria_chk.c: Updated parameters for init_pagecache() storage/maria/maria_ftdump.c: Updated parameters for init_pagecache() storage/maria/maria_pack.c: Updated parameters for init_pagecache() storage/maria/maria_read_log.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_pagecache_consist.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_pagecache_rwconsist.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_pagecache_rwconsist2.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_pagecache_single.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_test_loghandler-t.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_test_loghandler_first_lsn-t.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_test_loghandler_max_lsn-t.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_test_loghandler_multigroup-t.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_test_loghandler_multithread-t.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_test_loghandler_noflush-t.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_test_loghandler_nologs-t.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_test_loghandler_pagecache-t.c: Updated parameters for init_pagecache() storage/maria/unittest/ma_test_loghandler_purge-t.c: Updated parameters for init_pagecache() storage/myisam/ha_myisam.cc: Added counting of files with delay_key_write storage/myisam/mi_check.c: Updated call to init_key_cache() storage/myisam/mi_test1.c: Updated call to init_key_cache() storage/myisam/mi_test2.c: Updated call to init_key_cache() storage/myisam/mi_test3.c: Updated call to init_key_cache() storage/myisam/mi_test_all.sh: Fixed broken test storage/myisam/myisam_ftdump.c: Updated call to init_key_cache() storage/myisam/myisamchk.c: Updated call to init_key_cache() storage/myisam/myisamlog.c: Updated call to init_key_cache()
156 lines
3.8 KiB
Text
156 lines
3.8 KiB
Text
drop table if exists t1;
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flush status;
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show status like "feature%";
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Variable_name Value
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Feature_delay_key_write 0
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Feature_dynamic_columns 0
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Feature_fulltext 0
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Feature_gis 0
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Feature_locale 0
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Feature_subquery 0
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Feature_timezone 0
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Feature_trigger 0
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Feature_xml 0
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#
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# Feature GIS
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#
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CREATE TABLE t1 (g POINT);
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SHOW FIELDS FROM t1;
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Field Type Null Key Default Extra
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g point YES NULL
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INSERT INTO t1 VALUES
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(PointFromText('POINT(10 10)')),
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(PointFromText('POINT(20 10)')),
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(PointFromText('POINT(20 20)')),
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(PointFromWKB(AsWKB(PointFromText('POINT(10 20)'))));
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drop table t1;
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show status like "feature_gis";
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Variable_name Value
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Feature_gis 3
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#
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# Feature dynamic columns
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#
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set @a= COLUMN_CREATE(1, 1212 AS int);
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set @b= column_add(@a, 2, 1212 as integer);
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select column_get(@b, 2 as integer);
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column_get(@b, 2 as integer)
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1212
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show status like "feature_dynamic_columns";
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Variable_name Value
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Feature_dynamic_columns 2
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#
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# Feature fulltext
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#
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CREATE TABLE t1 (a VARCHAR(200), b TEXT, FULLTEXT (a,b)) engine=myisam;
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INSERT INTO t1 VALUES('MySQL has now support', 'for full-text search'),
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('Full-text indexes', 'are called collections'),
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('Only MyISAM tables','support collections'),
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('Function MATCH ... AGAINST()','is used to do a search'),
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('Full-text search in MySQL', 'implements vector space model');
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select * from t1 where MATCH(a,b) AGAINST ("collections");
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a b
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Only MyISAM tables support collections
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Full-text indexes are called collections
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select * from t1 where MATCH(a,b) AGAINST ("indexes");
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a b
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Full-text indexes are called collections
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drop table t1;
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show status like "feature_fulltext";
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Variable_name Value
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Feature_fulltext 2
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#
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# Feature locale
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#
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SET lc_messages=sr_RS;
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SET lc_messages=en_US;
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show status like "feature_locale";
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Variable_name Value
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Feature_locale 2
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#
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# Feature subquery
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#
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select (select 2);
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(select 2)
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2
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SELECT (SELECT 1) UNION SELECT (SELECT 2);
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(SELECT 1)
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1
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2
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create table t1 (a int);
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insert into t1 values (2);
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select (select a from t1 where t1.a=t2.a), a from t1 as t2;
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(select a from t1 where t1.a=t2.a) a
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2 2
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drop table t1;
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show status like "feature_subquery";
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Variable_name Value
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Feature_subquery 4
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#
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# Feature timezone
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#
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SELECT FROM_UNIXTIME(unix_timestamp()) > "1970-01-01";
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FROM_UNIXTIME(unix_timestamp()) > "1970-01-01"
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1
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set time_zone="+03:00";
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SELECT FROM_UNIXTIME(unix_timestamp()) > "1970-01-01";
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FROM_UNIXTIME(unix_timestamp()) > "1970-01-01"
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1
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set time_zone= @@global.time_zone;
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show status like "feature_timezone";
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Variable_name Value
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Feature_timezone 1
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#
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# Feature triggers
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#
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create table t1 (i int);
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# let us test some very simple trigger
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create trigger trg before insert on t1 for each row set @a:=1;
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set @a:=0;
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select @a;
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@a
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0
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insert into t1 values (1),(2);
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select @a;
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@a
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1
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SHOW TRIGGERS IN test like 't1';
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Trigger Event Table Statement Timing Created sql_mode Definer character_set_client collation_connection Database Collation
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trg INSERT t1 set @a:=1 BEFORE NULL root@localhost latin1 latin1_swedish_ci latin1_swedish_ci
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drop trigger trg;
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drop table t1;
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show status like "%trigger%";
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Variable_name Value
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Com_create_trigger 1
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Com_drop_trigger 1
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Com_show_create_trigger 0
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Com_show_triggers 1
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Executed_triggers 2
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Feature_trigger 2
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#
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# Feature xml
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#
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SET @xml='<a aa1="aa1" aa2="aa2">a1<b ba1="ba1">b1<c>c1</c>b2</b>a2</a>';
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SELECT extractValue(@xml,'/a');
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extractValue(@xml,'/a')
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a1 a2
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select updatexml('<div><div><span>1</span><span>2</span></div></div>',
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'/','<tr><td>1</td><td>2</td></tr>') as upd1;
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upd1
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<tr><td>1</td><td>2</td></tr>
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show status like "feature_xml";
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Variable_name Value
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Feature_xml 2
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#
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# Feature delayed_keys
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#
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create table t1 (a int, key(a)) engine=myisam delay_key_write=1;
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insert into t1 values(1);
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insert into t1 values(2);
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drop table t1;
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create table t1 (a int, key(a)) engine=aria delay_key_write=1;
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insert into t1 values(1);
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insert into t1 values(2);
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drop table t1;
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show status like "feature_delay_key_write";
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Variable_name Value
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Feature_delay_key_write 2
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