mirror of
https://github.com/MariaDB/server.git
synced 2025-01-18 04:53:01 +01:00
e72124c4cc
New multi-key-cache handling. This was needed becasue the old one didn't work reliable with MERGE tables.
ALTER TABLE table_name ... CHARACTER SET ... now changes all char/varchar/text columns to the given character set
(One must use ALTER TABLE ... DEFAULT CHARACTER SET ... to change the default character set)
Fixed that have_compress is detected properly (fixes problems with func_compress.test on platforms without zlib)
New syntax for CACHE INDEX ('keys' is optional if no index name is given and one mentions the key cache name only ones)
Removed compiler warnings
Added mysql_set_server_option() to allow clients like PHP to easaily set/reset the multi-statement flag.
BUILD/compile-pentium-valgrind-max:
Add test of isam
client/mysql.cc:
CLIENT_MULTI_QUERIES -> CLIENT_MULTI_STATEMENTS
include/my_base.h:
Remove HA_EXTRA_SET_KEY_CACHE
include/my_no_pthread.h:
Add defines to ignore rw-locks when running without threads
include/my_sys.h:
Added function for multi-key-caches
include/myisam.h:
Added function to handle multi-key-caches
include/mysql.h:
Added mysql_set_server_option
include/mysql_com.h:
CLIENT_MULTI_QUERIES -> CLIENT_MULTI_STATEMENTS
Added enum_mysql_set_option
include/mysqld_error.h:
Added error message for unknown key cache
innobase/srv/srv0start.c:
Removed warning that is confused for MySQL users
libmysql/libmysql.c:
Added mysql_set_server_option()
libmysql/libmysql.def:
Added mysql_set_server_option()
myisam/ft_nlq_search.c:
Removed compiler warning
myisam/ft_static.c:
Removed compiler warning and fixed wrong return value
myisam/mi_check.c:
Clean up multi-key-cache usage
myisam/mi_checksum.c:
Removed not used variable
myisam/mi_close.c:
keycache -> key_cache
myisam/mi_delete_all.c:
keycache -> key_cache
myisam/mi_extra.c:
keycache -> key_cache
Removed HA_EXTRA_SET_KEY_CACHE
myisam/mi_keycache.c:
Changed logic so that it's MyISAM that is responsible for assign tables to different key caches instead of the upper level
myisam/mi_locking.c:
Don't change key cache on unlock (must be done before)
myisam/mi_open.c:
Fetch key cache to use from multi_key_cache_search()
myisam/mi_page.c:
keycache -> key_cache
myisam/mi_panic.c:
keycache -> key_cache
myisam/mi_preload.c:
keycache -> key_cache
myisam/mi_test1.c:
Use KEY_CACHE_BLOCK_SIZE
myisam/mi_test2.c:
Always test resize_key_cache()
myisam/mi_test3.c:
Use KEY_CACHE_BLOCK_SIZE instead of 512
myisam/myisamchk.c:
update for multiple key caches
myisam/myisamdef.h:
Remove reg_keycache
Add unique_name_length for storing length of unique_file_name
myisam/myisamlog.c:
Change how end_key_cache() is called
mysql-test/mysql-test-run.sh:
Fixed web link
Added name of failed test to abort row.
mysql-test/r/alter_table.result:
Testing of ALTER TABLE ... [DEFAULT] CHARACTER SET
mysql-test/r/case.result:
Update result for DEFAULT CHARSET...
mysql-test/r/cast.result:
Update result for DEFAULT CHARSET...
mysql-test/r/create.result:
Update result for DEFAULT CHARSET...
mysql-test/r/ctype_collate.result:
Update result for DEFAULT CHARSET...
mysql-test/r/ctype_latin1_de.result:
Update result for DEFAULT CHARSET...
mysql-test/r/ctype_many.result:
Update result for DEFAULT CHARSET...
mysql-test/r/ctype_mb.result:
Update result for DEFAULT CHARSET...
mysql-test/r/ctype_recoding.result:
Update result for DEFAULT CHARSET...
mysql-test/r/ctype_ucs.result:
Update result for DEFAULT CHARSET...
mysql-test/r/derived.result:
Use STRAIGHT_JOIN to make join order predictable
mysql-test/r/fulltext.result:
Update result for DEFAULT CHARSET...
mysql-test/r/func_str.result:
Update result for DEFAULT CHARSET...
mysql-test/r/func_system.result:
Update result for DEFAULT CHARSET...
mysql-test/r/gis-rtree.result:
Update result for DEFAULT CHARSET...
mysql-test/r/innodb.result:
Update result for DEFAULT CHARSET...
mysql-test/r/key_cache.result:
Update test for new key cache syntax.
Added more tests
mysql-test/r/merge.result:
Update result for DEFAULT CHARSET...
mysql-test/r/preload.result:
New syntax
mysql-test/r/show_check.result:
Update result for DEFAULT CHARSET...
mysql-test/r/sql_mode.result:
Update result for DEFAULT CHARSET...
mysql-test/r/subselect.result:
Update result for DEFAULT CHARSET...
mysql-test/r/type_blob.result:
Update result for DEFAULT CHARSET...
mysql-test/r/type_enum.result:
Update result for DEFAULT CHARSET...
mysql-test/r/type_nchar.result:
Update result for DEFAULT CHARSET...
mysql-test/r/type_set.result:
Update result for DEFAULT CHARSET...
mysql-test/r/union.result:
Use STRAIGHT_JOIN to make join order predictable
mysql-test/t/alter_table.test:
Testing of ALTER TABLE ... [DEFAULT] CHARACTER SET
mysql-test/t/ctype_many.test:
Update result for DEFAULT CHARSET...
mysql-test/t/derived.test:
Use STRAIGHT_JOIN to make join order predictable
mysql-test/t/isam.test:
Use disable warnings for test loop
mysql-test/t/join.test:
Update test now when we only support 61 tables in join
mysql-test/t/key_cache.test:
Update test for new key cache syntax.
Added more tests
mysql-test/t/preload.test:
Update for new syntax
mysql-test/t/union.test:
Use STRAIGHT_JOIN to make join order predictable
mysys/Makefile.am:
Added mf_keycaches.c
mysys/hash.c:
TRUE -> 1
mysys/mf_keycache.c:
Removed compiler warnings
Striped end space
Fixed indentation and improved function comments
TRUE -> 1
Changed parameters to end_key_cache() to make it easer to use
Fixed bug when using key blocks size > 1024 bytes (First part of index file could be overwritten with wrong data)
Split function flush_key_blocks into two functions to not get mutex used twice when called from flush_all_key_blocks()
mysys/my_bitmap.c:
More debugging
Safe bitmap_free()
Fixed indentation
mysys/my_getopt.c:
Ensure that we initialize option->value, option->max_value and value from GET_ASK_ADDR
mysys/my_thr_init.c:
Remove not used mutex THR_LOCK_keycache
mysys/typelib.c:
Fixed function comments
sql-common/client.c:
CLIENT_MULTI_QUERIES -> CLIENT_MULTI_STATEMENTS
Fixed the multi_result flag is set also on SELECT;s
sql/ha_myisam.cc:
Fixed multiple key_cache handling
(Now done on MyISAM level)
sql/ha_myisammrg.cc:
Fixed multiple key_cache handling
(Now done on MyISAM level)
sql/handler.cc:
New multi key cache handling
sql/handler.h:
New multi key cache handling
Added support for default character set
sql/item.h:
Added function cleanup() (Needed for prepared statements / cursors)
sql/item_cmpfunc.h:
Added cleanup function
sql/item_func.cc:
Indentation cleanup
sql/mysql_priv.h:
New multi-key-cache functions
Removed LOCK_assign
sql/mysqld.cc:
New multi-key-cache handling
Fixed that variable have_compress is set correctly
sql/protocol.cc:
SELECT didn't work reliable in multi-statements
sql/set_var.cc:
Support for new key cache variables
sql/set_var.h:
Support for new key cache variables
sql/share/czech/errmsg.txt:
New error messages
sql/share/danish/errmsg.txt:
New error messages
sql/share/dutch/errmsg.txt:
New error messages
sql/share/english/errmsg.txt:
New error messages
sql/share/estonian/errmsg.txt:
New error messages
sql/share/french/errmsg.txt:
New error messages
sql/share/german/errmsg.txt:
New error messages
sql/share/greek/errmsg.txt:
New error messages
sql/share/hungarian/errmsg.txt:
New error messages
sql/share/italian/errmsg.txt:
New error messages
sql/share/japanese/errmsg.txt:
New error messages
sql/share/korean/errmsg.txt:
New error messages
sql/share/norwegian-ny/errmsg.txt:
New error messages
sql/share/norwegian/errmsg.txt:
New error messages
sql/share/polish/errmsg.txt:
New error messages
sql/share/portuguese/errmsg.txt:
New error messages
sql/share/romanian/errmsg.txt:
New error messages
sql/share/russian/errmsg.txt:
New error messages
sql/share/serbian/errmsg.txt:
New error messages
sql/share/slovak/errmsg.txt:
New error messages
sql/share/spanish/errmsg.txt:
New error messages
sql/share/swedish/errmsg.txt:
New error messages
sql/share/ukrainian/errmsg.txt:
New error messages
sql/sql_base.cc:
Removed all key_cache handling (this is now done on MyISAM level)
Change table_charset -> default_table_charset
sql/sql_db.cc:
table_charset -> default_table_charset
sql/sql_delete.cc:
table_charset -> default_table_charset
sql/sql_lex.cc:
CLIENT_MULTI_QUERIES -> CLIENT_MULTI_STATEMENTS
sql/sql_lex.h:
New option to store a name and length
sql/sql_parse.cc:
Support for mysql_set_server_option()
Reset "default" keycache status variables in 'FLUSH STATUS' (Need to be improved later)
sql/sql_show.cc:
Add DEFAULT before CHARSET (for table character sets)
Fetch key cache variables from 'sql_key_cache'
sql/sql_table.cc:
table_charset -> default_table_charset
New multi-key-cache handling
sql/sql_test.cc:
Write information from all key caches
sql/sql_yacc.yy:
Changed syntax for CACHE INDEX ...
Force user to use DEFAULT before database/table level character sets
sql/structs.h:
Added SHOW_KEY_CACHE_LONG (to get values from sql_key_cache)
sql/table.cc:
table_charset -> default_table_charset
sql/table.h:
New key cache handling (this is now done in mysys/mf_keycaches.c)
sql/unireg.h:
A
230 lines
9.6 KiB
Text
230 lines
9.6 KiB
Text
drop table if exists t1,t2,t3;
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select * from (select 2 from DUAL) b;
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2
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2
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SELECT 1 as a FROM (SELECT 1 UNION SELECT a) b;
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ERROR 42S22: Unknown column 'a' in 'field list'
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SELECT 1 as a FROM (SELECT a UNION SELECT 1) b;
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ERROR 42S22: Unknown column 'a' in 'field list'
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CREATE TABLE t1 (a int not null, b char (10) not null);
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insert into t1 values(1,'a'),(2,'b'),(3,'c'),(3,'c');
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CREATE TABLE t2 (a int not null, b char (10) not null);
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insert into t2 values (3,'c'),(4,'d'),(5,'f'),(6,'e');
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select t1.a,t3.y from t1,(select a as y from t2 where b='c') as t3 where t1.a = t3.y;
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a y
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3 3
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3 3
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select t1.a,t3.a from t1,(select * from t2 where b='c') as t3 where t1.a = t3.a;
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a a
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3 3
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3 3
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CREATE TABLE t3 (a int not null, b char (10) not null);
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insert into t3 values (3,'f'),(4,'y'),(5,'z'),(6,'c');
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select t1.a,t4.y from t1,(select t2.a as y from t2,(select t3.b from t3 where t3.a>3) as t5 where t2.b=t5.b) as t4 where t1.a = t4.y;
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a y
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3 3
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3 3
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SELECT a FROM (SELECT 1 FROM (SELECT 1) a HAVING a=1) b;
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ERROR 42S22: Unknown column 'a' in 'having clause'
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SELECT a,b as a FROM (SELECT '1' as a,'2' as b) b HAVING a=1;
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ERROR 23000: Column: 'a' in having clause is ambiguous
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SELECT a,2 as a FROM (SELECT '1' as a) b HAVING a=2;
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a a
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1 2
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SELECT a,2 as a FROM (SELECT '1' as a) b HAVING a=1;
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a a
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SELECT 1 FROM (SELECT 1) a WHERE a=2;
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ERROR 42S22: Unknown column 'a' in 'where clause'
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SELECT (SELECT 1) as a FROM (SELECT 1 FROM t1 HAVING a=1) as a;
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ERROR 42S22: Unknown column 'a' in 'having clause'
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select * from t1 as x1, (select * from t1) as x2;
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a b a b
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1 a 1 a
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2 b 1 a
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3 c 1 a
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3 c 1 a
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1 a 2 b
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2 b 2 b
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3 c 2 b
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3 c 2 b
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1 a 3 c
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2 b 3 c
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3 c 3 c
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3 c 3 c
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1 a 3 c
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2 b 3 c
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3 c 3 c
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3 c 3 c
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explain select * from t1 as x1, (select * from t1) as x2;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY x1 ALL NULL NULL NULL NULL 4
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4
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2 DERIVED x1 ALL NULL NULL NULL NULL 4
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drop table if exists t2,t3;
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select * from (select 1) as a;
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1
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1
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select a from (select 1 as a) as b;
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a
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1
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select 1 from (select 1) as a;
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1
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1
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select * from (select * from t1 union select * from t1) a;
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a b
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1 a
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2 b
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3 c
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select * from (select * from t1 union all select * from t1) a;
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a b
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1 a
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2 b
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3 c
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3 c
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1 a
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2 b
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3 c
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3 c
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explain select * from (select * from t1 union select * from t1) a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3
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2 DERIVED t1 ALL NULL NULL NULL NULL 4
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3 UNION t1 ALL NULL NULL NULL NULL 4
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explain select * from (select * from t1 union all select * from t1) a;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 8
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2 DERIVED t1 ALL NULL NULL NULL NULL 4
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3 UNION t1 ALL NULL NULL NULL NULL 4
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CREATE TABLE t2 (a int not null);
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insert into t2 values(1);
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select * from (select * from t1 where t1.a=(select a from t2 where t2.a=t1.a)) a;
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a b
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1 a
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select * from (select * from t1 where t1.a=(select t2.a from t2 where t2.a=t1.a) union select t1.a, t1.b from t1) a;
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a b
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1 a
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2 b
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3 c
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explain select * from (select * from t1,t2 where t1.a=t2.a) t1;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> system NULL NULL NULL NULL 1
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2 DERIVED t2 system NULL NULL NULL NULL 1
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2 DERIVED t1 ALL NULL NULL NULL NULL 4 Using where
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drop table t1, t2;
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create table t1(a int not null, t char(8), index(a));
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SELECT * FROM (SELECT * FROM t1) as b ORDER BY a ASC LIMIT 0,20;
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a t
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1 1
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2 2
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3 3
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4 4
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5 5
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6 6
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7 7
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9 9
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10 10
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11 11
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19 19
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20 20
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explain select count(*) from t1 as tt1, (select * from t1) as tt2;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Select tables optimized away
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2 DERIVED tt1 ALL NULL NULL NULL NULL 10000
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drop table t1;
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SELECT * FROM (SELECT (SELECT * FROM (SELECT 1 as a) as a )) as b;
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(SELECT * FROM (SELECT 1 as a) as a )
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1
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select * from (select 1 as a) b left join (select 2 as a) c using(a);
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a a
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1 NULL
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SELECT * FROM (SELECT 1 UNION SELECT a) b;
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ERROR 42S22: Unknown column 'a' in 'field list'
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SELECT 1 as a FROM (SELECT a UNION SELECT 1) b;
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ERROR 42S22: Unknown column 'a' in 'field list'
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SELECT 1 as a FROM (SELECT 1 UNION SELECT a) b;
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ERROR 42S22: Unknown column 'a' in 'field list'
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select 1 from (select 2) a order by 0;
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ERROR 42S22: Unknown column '0' in 'order clause'
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create table t1 (id int);
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insert into t1 values (1),(2),(3);
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describe select * from (select * from t1 group by id) bar;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3
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2 DERIVED t1 ALL NULL NULL NULL NULL 3 Using temporary; Using filesort
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drop table t1;
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create table t1 (mat_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, matintnum CHAR(6) NOT NULL, test MEDIUMINT UNSIGNED NULL);
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create table t2 (mat_id MEDIUMINT UNSIGNED NOT NULL, pla_id MEDIUMINT UNSIGNED NOT NULL);
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insert into t1 values (NULL, 'a', 1), (NULL, 'b', 2), (NULL, 'c', 3), (NULL, 'd', 4), (NULL, 'e', 5), (NULL, 'f', 6), (NULL, 'g', 7), (NULL, 'h', 8), (NULL, 'i', 9);
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insert into t2 values (1, 100), (1, 101), (1, 102), (2, 100), (2, 103), (2, 104), (3, 101), (3, 102), (3, 105);
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SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
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pla_id mat_id
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100 1
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101 1
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102 1
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103 2
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104 2
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105 3
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SELECT STRAIGHT_JOIN d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
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pla_id test
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100 1
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101 1
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102 1
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103 2
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104 2
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105 3
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explain SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY m2 ALL NULL NULL NULL NULL 9
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 Using where
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2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort
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2 DERIVED m2 index NULL PRIMARY 3 NULL 9 Using index
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explain SELECT STRAIGHT_JOIN d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY m2 ALL NULL NULL NULL NULL 9
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 Using where
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2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort
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2 DERIVED m2 index NULL PRIMARY 3 NULL 9 Using index
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drop table t1,t2;
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SELECT a.x FROM (SELECT 1 AS x) AS a HAVING a.x = 1;
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x
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1
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create table t1 select 1 as a;
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select 2 as a from (select * from t1) b;
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ERROR 3D000: No Database Selected
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use test;
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select 2 as a from (select * from t1) b;
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a
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2
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drop table t1;
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select mail_id, if(folder.f_description!='', folder.f_description, folder.f_name) as folder_name, date, address_id, phrase, address, subject from folder, (select mail.mail_id as mail_id, date_format(mail.h_date, '%b %e, %Y %h:%i') as date, mail.folder_id, sender.address_id as address_id, sender.phrase as phrase, sender.address as address, mail.h_subject as subject from mail left join mxa as mxa_sender on mail.mail_id=mxa_sender.mail_id and mxa_sender.type='from' left join address as sender on mxa_sender.address_id=sender.address_id mxa as mxa_recipient, address as recipient, where 1 and mail.mail_id=mxa_recipient.mail_id and mxa_recipient.address_id=recipient.address_id and mxa_recipient.type='to' and match(sender.phrase, sender.address, sender.comment) against ('jeremy' in boolean mode) and match(recipient.phrase, recipient.address, recipient.comment) against ('monty' in boolean mode) order by mail.h_date desc limit 0, 25 ) as query where query.folder_id=folder.folder_id;
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ERROR 42000: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near 'mxa as mxa_recipient, address as recipient, where 1 and mail.mail_id=mxa_r' at line 1
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create table t1 (a int);
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insert into t1 values (1),(2),(3);
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update (select * from t1) as t1 set a = 5;
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ERROR 42000: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use
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delete from (select * from t1);
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ERROR 42000: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '(select * from t1)' at line 1
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insert into (select * from t1) values (5);
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ERROR 42000: You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '(select * from t1) values (5)' at line 1
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drop table t1;
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create table t1 (E1 INTEGER UNSIGNED NOT NULL, E2 INTEGER UNSIGNED NOT NULL, E3 INTEGER UNSIGNED NOT NULL, PRIMARY KEY(E1)
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);
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insert into t1 VALUES(1,1,1), (2,2,1);
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select count(*) from t1 INNER JOIN (SELECT A.E1, A.E2, A.E3 FROM t1 AS A WHERE A.E3 = (SELECT MAX(B.E3) FROM t1 AS B WHERE A.E2 = B.E2)) AS THEMAX ON t1.E1 = THEMAX.E2 AND t1.E1 = t1.E2;
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count(*)
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2
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explain select count(*) from t1 INNER JOIN (SELECT A.E1, A.E2, A.E3 FROM t1 AS A WHERE A.E3 = (SELECT MAX(B.E3) FROM t1 AS B WHERE A.E2 = B.E2)) AS THEMAX ON t1.E1 = THEMAX.E2 AND t1.E1 = t1.E2;
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2
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1 PRIMARY t1 eq_ref PRIMARY PRIMARY 4 THEMAX.E2 1 Using where
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2 DERIVED t1 ALL NULL NULL NULL NULL 2 Using where
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3 DEPENDENT SUBQUERY B ALL NULL NULL NULL NULL 2 Using where
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drop table t1;
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