2004-06-26 14:21:32 +02:00
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|
|
drop table if exists t1,t2;
|
2004-06-24 15:06:56 +02:00
|
|
|
create table t1 (a int not null auto_increment primary key);
|
|
|
|
|
insert into t1 values(0);
|
|
|
|
|
lock table t1 read;
|
|
|
|
|
flush table t1;
|
|
|
|
|
check table t1;
|
|
|
|
|
Table Op Msg_type Msg_text
|
|
|
|
|
test.t1 check status OK
|
Table definition cache, part 2
The table opening process now works the following way:
- Create common TABLE_SHARE object
- Read the .frm file and unpack it into the TABLE_SHARE object
- Create a TABLE object based on the information in the TABLE_SHARE
object and open a handler to the table object
Other noteworthy changes:
- In TABLE_SHARE the most common strings are now LEX_STRING's
- Better error message when table is not found
- Variable table_cache is now renamed 'table_open_cache'
- New variable 'table_definition_cache' that is the number of table defintions that will be cached
- strxnmov() calls are now fixed to avoid overflows
- strxnmov() will now always add one end \0 to result
- engine objects are now created with a TABLE_SHARE object instead of a TABLE object.
- After creating a field object one must call field->init(table) before using it
- For a busy system this change will give you:
- Less memory usage for table object
- Faster opening of tables (if it's has been in use or is in table definition cache)
- Allow you to cache many table definitions objects
- Faster drop of table
mysql-test/mysql-test-run.sh:
Fixed some problems with --gdb option
Test both with socket and tcp/ip port that all old servers are killed
mysql-test/r/flush_table.result:
More tests with lock table with 2 threads + flush table
mysql-test/r/information_schema.result:
Removed old (now wrong) result
mysql-test/r/innodb.result:
Better error messages (thanks to TDC patch)
mysql-test/r/merge.result:
Extra flush table test
mysql-test/r/ndb_bitfield.result:
Better error messages (thanks to TDC patch)
mysql-test/r/ndb_partition_error.result:
Better error messages (thanks to TDC patch)
mysql-test/r/query_cache.result:
Remove tables left from old tests
mysql-test/r/temp_table.result:
Test truncate with temporary tables
mysql-test/r/variables.result:
Table_cache -> Table_open_cache
mysql-test/t/flush_table.test:
More tests with lock table with 2 threads + flush table
mysql-test/t/merge.test:
Extra flush table test
mysql-test/t/multi_update.test:
Added 'sleep' to make test predictable
mysql-test/t/query_cache.test:
Remove tables left from old tests
mysql-test/t/temp_table.test:
Test truncate with temporary tables
mysql-test/t/variables.test:
Table_cache -> Table_open_cache
mysql-test/valgrind.supp:
Remove warning that may happens becasue threads dies in different order
mysys/hash.c:
Fixed wrong DBUG_PRINT
mysys/mf_dirname.c:
More DBUG
mysys/mf_pack.c:
Better comment
mysys/mf_tempdir.c:
More DBUG
Ensure that we call cleanup_dirname() on all temporary directory paths.
If we don't do this, we will get a failure when comparing temporary table
names as in some cases the temporary table name is run through convert_dirname())
mysys/my_alloc.c:
Indentation fix
sql/examples/ha_example.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_example.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_tina.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_tina.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/field.cc:
Update for table definition cache:
- Field creation now takes TABLE_SHARE instead of TABLE as argument
(This is becasue field definitions are now cached in TABLE_SHARE)
When a field is created, one now must call field->init(TABLE) before using it
- Use s->db instead of s->table_cache_key
- Added Field::clone() to create a field in TABLE from a field in TABLE_SHARE
- make_field() takes TABLE_SHARE as argument instead of TABLE
- move_field() -> move_field_offset()
sql/field.h:
Update for table definition cache:
- Field creation now takes TABLE_SHARE instead of TABLE as argument
(This is becasue field definitions are now cached in TABLE_SHARE)
When a field is created, one now must call field->init(TABLE) before using it
- Added Field::clone() to create a field in TABLE from a field in TABLE_SHARE
- make_field() takes TABLE_SHARE as argument instead of TABLE
- move_field() -> move_field_offset()
sql/ha_archive.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_archive.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_berkeley.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Changed name of argument create() to not hide internal 'table' variable.
table->s -> table_share
sql/ha_berkeley.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_blackhole.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_blackhole.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_federated.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Fixed comments
Remove index variable and replace with pointers (simple optimization)
move_field() -> move_field_offset()
Removed some strlen() calls
sql/ha_federated.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_heap.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Simplify delete_table() and create() as the given file names are now without extension
sql/ha_heap.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_innodb.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_innodb.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_myisam.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Remove not needed fn_format()
Fixed for new table->s structure
sql/ha_myisam.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_myisammrg.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Don't set 'is_view' for MERGE tables
Use new interface to find_temporary_table()
sql/ha_myisammrg.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Added flag HA_NO_COPY_ON_ALTER
sql/ha_ndbcluster.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Fixed wrong calls to strxnmov()
Give error HA_ERR_TABLE_DEF_CHANGED if table definition has changed
drop_table -> intern_drop_table()
table->s -> table_share
Move part_info to TABLE
Fixed comments & DBUG print's
New arguments to print_error()
sql/ha_ndbcluster.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_partition.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
We can't set up or use part_info when creating handler as there is not yet any table object
New ha_intialise() to work with TDC (Done by Mikael)
sql/ha_partition.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Got set_part_info() from Mikael
sql/handler.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
ha_delete_table() now also takes database as an argument
handler::ha_open() now takes TABLE as argument
ha_open() now calls ha_allocate_read_write_set()
Simplify ha_allocate_read_write_set()
Remove ha_deallocate_read_write_set()
Use table_share (Cached by table definition cache)
sql/handler.h:
New table flag: HA_NO_COPY_ON_ALTER (used by merge tables)
Remove ha_deallocate_read_write_set()
get_new_handler() now takes TABLE_SHARE as argument
ha_delete_table() now gets database as argument
sql/item.cc:
table_name and db are now LEX_STRING objects
When creating fields, we have now have to call field->init(table)
move_field -> move_field_offset()
sql/item.h:
tmp_table_field_from_field_type() now takes an extra paramenter 'fixed_length' to allow one to force usage of CHAR
instead of BLOB
sql/item_cmpfunc.cc:
Fixed call to tmp_table_field_from_field_type()
sql/item_create.cc:
Assert if new not handled cast type
sql/item_func.cc:
When creating fields, we have now have to call field->init(table)
dummy_table used by 'sp' now needs a TABLE_SHARE object
sql/item_subselect.cc:
Trivial code cleanups
sql/item_sum.cc:
When creating fields, we have now have to call field->init(table)
sql/item_timefunc.cc:
Item_func_str_to_date::tmp_table_field() now replaced by call to
tmp_table_field_from_field_type() (see item_timefunc.h)
sql/item_timefunc.h:
Simply tmp_table_field()
sql/item_uniq.cc:
When creating fields, we have now have to call field->init(table)
sql/key.cc:
Added 'KEY' argument to 'find_ref_key' to simplify code
sql/lock.cc:
More debugging
Use create_table_def_key() to create key for table cache
Allocate TABLE_SHARE properly when creating name lock
Fix that locked_table_name doesn't test same table twice
sql/mysql_priv.h:
New functions for table definition cache
New interfaces to a lot of functions.
New faster interface to find_temporary_table() and close_temporary_table()
sql/mysqld.cc:
Added support for table definition cache of size 'table_def_size'
Fixed som calls to strnmov()
Changed name of 'table_cache' to 'table_open_cache'
sql/opt_range.cc:
Use new interfaces
Fixed warnings from valgrind
sql/parse_file.cc:
Safer calls to strxnmov()
Fixed typo
sql/set_var.cc:
Added variable 'table_definition_cache'
Variable table_cache renamed to 'table_open_cache'
sql/slave.cc:
Use new interface
sql/sp.cc:
Proper use of TABLE_SHARE
sql/sp_head.cc:
Remove compiler warnings
We have now to call field->init(table)
sql/sp_head.h:
Pointers to parsed strings are now const
sql/sql_acl.cc:
table_name is now a LEX_STRING
sql/sql_base.cc:
Main implementation of table definition cache
(The #ifdef's are there for the future when table definition cache will replace open table cache)
Now table definitions are cached indepndent of open tables, which will speed up things when a table is in use at once from several places
Views are not yet cached; For the moment we only cache if a table is a view or not.
Faster implementation of find_temorary_table()
Replace 'wait_for_refresh()' with the more general function 'wait_for_condition()'
Drop table is slightly faster as we can use the table definition cache to know the type of the table
sql/sql_cache.cc:
table_cache_key and table_name are now LEX_STRING
'sDBUG print fixes
sql/sql_class.cc:
table_cache_key is now a LEX_STRING
safer strxnmov()
sql/sql_class.h:
Added number of open table shares (table definitions)
sql/sql_db.cc:
safer strxnmov()
sql/sql_delete.cc:
Use new interface to find_temporary_table()
sql/sql_derived.cc:
table_name is now a LEX_STRING
sql/sql_handler.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
sql/sql_insert.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
sql/sql_lex.cc:
Make parsed string a const (to quickly find out if anything is trying to change the query string)
sql/sql_lex.h:
Make parsed string a const (to quickly find out if anything is trying to change the query string)
sql/sql_load.cc:
Safer strxnmov()
sql/sql_parse.cc:
Better error if wrong DB name
sql/sql_partition.cc:
part_info moved to TABLE from TABLE_SHARE
Indentation changes
sql/sql_select.cc:
Indentation fixes
Call field->init(TABLE) for new created fields
Update create_tmp_table() to use TABLE_SHARE properly
sql/sql_select.h:
Call field->init(TABLE) for new created fields
sql/sql_show.cc:
table_name is now a LEX_STRING
part_info moved to TABLE
sql/sql_table.cc:
Use table definition cache to speed up delete of tables
Fixed calls to functions with new interfaces
Don't use 'share_not_to_be_used'
Instead of doing openfrm() when doing repair, we now have to call
get_table_share() followed by open_table_from_share().
Replace some fn_format() with faster unpack_filename().
Safer strxnmov()
part_info is now in TABLE
Added Mikaels patch for partition and ALTER TABLE
Instead of using 'TABLE_SHARE->is_view' use 'table_flags() & HA_NO_COPY_ON_ALTER
sql/sql_test.cc:
table_name and table_cache_key are now LEX_STRING's
sql/sql_trigger.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
safer strxnmov()
Removed compiler warnings
sql/sql_update.cc:
Call field->init(TABLE) after field is created
sql/sql_view.cc:
safer strxnmov()
Create common TABLE_SHARE object for views to allow us to cache if table is a view
sql/structs.h:
Added SHOW_TABLE_DEFINITIONS
sql/table.cc:
Creation and destruct of TABLE_SHARE objects that are common for many TABLE objects
The table opening process now works the following way:
- Create common TABLE_SHARE object
- Read the .frm file and unpack it into the TABLE_SHARE object
- Create a TABLE object based on the information in the TABLE_SHARE
object and open a handler to the table object
open_table_def() is written in such a way that it should be trival to add parsing of the .frm files in new formats
sql/table.h:
TABLE objects for the same database table now share a common TABLE_SHARE object
In TABLE_SHARE the most common strings are now LEX_STRING's
sql/unireg.cc:
Changed arguments to rea_create_table() to have same order as other functions
Call field->init(table) for new created fields
sql/unireg.h:
Added OPEN_VIEW
strings/strxnmov.c:
Change strxnmov() to always add end \0
This makes usage of strxnmov() safer as most of MySQL code assumes that strxnmov() will create a null terminated string
2005-11-23 21:45:02 +01:00
|
|
|
unlock tables;
|
|
|
|
|
lock table t1 read;
|
|
|
|
|
lock table t1 read;
|
2006-10-04 23:48:24 +02:00
|
|
|
flush table t1;
|
Table definition cache, part 2
The table opening process now works the following way:
- Create common TABLE_SHARE object
- Read the .frm file and unpack it into the TABLE_SHARE object
- Create a TABLE object based on the information in the TABLE_SHARE
object and open a handler to the table object
Other noteworthy changes:
- In TABLE_SHARE the most common strings are now LEX_STRING's
- Better error message when table is not found
- Variable table_cache is now renamed 'table_open_cache'
- New variable 'table_definition_cache' that is the number of table defintions that will be cached
- strxnmov() calls are now fixed to avoid overflows
- strxnmov() will now always add one end \0 to result
- engine objects are now created with a TABLE_SHARE object instead of a TABLE object.
- After creating a field object one must call field->init(table) before using it
- For a busy system this change will give you:
- Less memory usage for table object
- Faster opening of tables (if it's has been in use or is in table definition cache)
- Allow you to cache many table definitions objects
- Faster drop of table
mysql-test/mysql-test-run.sh:
Fixed some problems with --gdb option
Test both with socket and tcp/ip port that all old servers are killed
mysql-test/r/flush_table.result:
More tests with lock table with 2 threads + flush table
mysql-test/r/information_schema.result:
Removed old (now wrong) result
mysql-test/r/innodb.result:
Better error messages (thanks to TDC patch)
mysql-test/r/merge.result:
Extra flush table test
mysql-test/r/ndb_bitfield.result:
Better error messages (thanks to TDC patch)
mysql-test/r/ndb_partition_error.result:
Better error messages (thanks to TDC patch)
mysql-test/r/query_cache.result:
Remove tables left from old tests
mysql-test/r/temp_table.result:
Test truncate with temporary tables
mysql-test/r/variables.result:
Table_cache -> Table_open_cache
mysql-test/t/flush_table.test:
More tests with lock table with 2 threads + flush table
mysql-test/t/merge.test:
Extra flush table test
mysql-test/t/multi_update.test:
Added 'sleep' to make test predictable
mysql-test/t/query_cache.test:
Remove tables left from old tests
mysql-test/t/temp_table.test:
Test truncate with temporary tables
mysql-test/t/variables.test:
Table_cache -> Table_open_cache
mysql-test/valgrind.supp:
Remove warning that may happens becasue threads dies in different order
mysys/hash.c:
Fixed wrong DBUG_PRINT
mysys/mf_dirname.c:
More DBUG
mysys/mf_pack.c:
Better comment
mysys/mf_tempdir.c:
More DBUG
Ensure that we call cleanup_dirname() on all temporary directory paths.
If we don't do this, we will get a failure when comparing temporary table
names as in some cases the temporary table name is run through convert_dirname())
mysys/my_alloc.c:
Indentation fix
sql/examples/ha_example.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_example.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_tina.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_tina.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/field.cc:
Update for table definition cache:
- Field creation now takes TABLE_SHARE instead of TABLE as argument
(This is becasue field definitions are now cached in TABLE_SHARE)
When a field is created, one now must call field->init(TABLE) before using it
- Use s->db instead of s->table_cache_key
- Added Field::clone() to create a field in TABLE from a field in TABLE_SHARE
- make_field() takes TABLE_SHARE as argument instead of TABLE
- move_field() -> move_field_offset()
sql/field.h:
Update for table definition cache:
- Field creation now takes TABLE_SHARE instead of TABLE as argument
(This is becasue field definitions are now cached in TABLE_SHARE)
When a field is created, one now must call field->init(TABLE) before using it
- Added Field::clone() to create a field in TABLE from a field in TABLE_SHARE
- make_field() takes TABLE_SHARE as argument instead of TABLE
- move_field() -> move_field_offset()
sql/ha_archive.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_archive.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_berkeley.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Changed name of argument create() to not hide internal 'table' variable.
table->s -> table_share
sql/ha_berkeley.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_blackhole.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_blackhole.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_federated.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Fixed comments
Remove index variable and replace with pointers (simple optimization)
move_field() -> move_field_offset()
Removed some strlen() calls
sql/ha_federated.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_heap.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Simplify delete_table() and create() as the given file names are now without extension
sql/ha_heap.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_innodb.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_innodb.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_myisam.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Remove not needed fn_format()
Fixed for new table->s structure
sql/ha_myisam.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_myisammrg.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Don't set 'is_view' for MERGE tables
Use new interface to find_temporary_table()
sql/ha_myisammrg.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Added flag HA_NO_COPY_ON_ALTER
sql/ha_ndbcluster.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Fixed wrong calls to strxnmov()
Give error HA_ERR_TABLE_DEF_CHANGED if table definition has changed
drop_table -> intern_drop_table()
table->s -> table_share
Move part_info to TABLE
Fixed comments & DBUG print's
New arguments to print_error()
sql/ha_ndbcluster.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_partition.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
We can't set up or use part_info when creating handler as there is not yet any table object
New ha_intialise() to work with TDC (Done by Mikael)
sql/ha_partition.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Got set_part_info() from Mikael
sql/handler.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
ha_delete_table() now also takes database as an argument
handler::ha_open() now takes TABLE as argument
ha_open() now calls ha_allocate_read_write_set()
Simplify ha_allocate_read_write_set()
Remove ha_deallocate_read_write_set()
Use table_share (Cached by table definition cache)
sql/handler.h:
New table flag: HA_NO_COPY_ON_ALTER (used by merge tables)
Remove ha_deallocate_read_write_set()
get_new_handler() now takes TABLE_SHARE as argument
ha_delete_table() now gets database as argument
sql/item.cc:
table_name and db are now LEX_STRING objects
When creating fields, we have now have to call field->init(table)
move_field -> move_field_offset()
sql/item.h:
tmp_table_field_from_field_type() now takes an extra paramenter 'fixed_length' to allow one to force usage of CHAR
instead of BLOB
sql/item_cmpfunc.cc:
Fixed call to tmp_table_field_from_field_type()
sql/item_create.cc:
Assert if new not handled cast type
sql/item_func.cc:
When creating fields, we have now have to call field->init(table)
dummy_table used by 'sp' now needs a TABLE_SHARE object
sql/item_subselect.cc:
Trivial code cleanups
sql/item_sum.cc:
When creating fields, we have now have to call field->init(table)
sql/item_timefunc.cc:
Item_func_str_to_date::tmp_table_field() now replaced by call to
tmp_table_field_from_field_type() (see item_timefunc.h)
sql/item_timefunc.h:
Simply tmp_table_field()
sql/item_uniq.cc:
When creating fields, we have now have to call field->init(table)
sql/key.cc:
Added 'KEY' argument to 'find_ref_key' to simplify code
sql/lock.cc:
More debugging
Use create_table_def_key() to create key for table cache
Allocate TABLE_SHARE properly when creating name lock
Fix that locked_table_name doesn't test same table twice
sql/mysql_priv.h:
New functions for table definition cache
New interfaces to a lot of functions.
New faster interface to find_temporary_table() and close_temporary_table()
sql/mysqld.cc:
Added support for table definition cache of size 'table_def_size'
Fixed som calls to strnmov()
Changed name of 'table_cache' to 'table_open_cache'
sql/opt_range.cc:
Use new interfaces
Fixed warnings from valgrind
sql/parse_file.cc:
Safer calls to strxnmov()
Fixed typo
sql/set_var.cc:
Added variable 'table_definition_cache'
Variable table_cache renamed to 'table_open_cache'
sql/slave.cc:
Use new interface
sql/sp.cc:
Proper use of TABLE_SHARE
sql/sp_head.cc:
Remove compiler warnings
We have now to call field->init(table)
sql/sp_head.h:
Pointers to parsed strings are now const
sql/sql_acl.cc:
table_name is now a LEX_STRING
sql/sql_base.cc:
Main implementation of table definition cache
(The #ifdef's are there for the future when table definition cache will replace open table cache)
Now table definitions are cached indepndent of open tables, which will speed up things when a table is in use at once from several places
Views are not yet cached; For the moment we only cache if a table is a view or not.
Faster implementation of find_temorary_table()
Replace 'wait_for_refresh()' with the more general function 'wait_for_condition()'
Drop table is slightly faster as we can use the table definition cache to know the type of the table
sql/sql_cache.cc:
table_cache_key and table_name are now LEX_STRING
'sDBUG print fixes
sql/sql_class.cc:
table_cache_key is now a LEX_STRING
safer strxnmov()
sql/sql_class.h:
Added number of open table shares (table definitions)
sql/sql_db.cc:
safer strxnmov()
sql/sql_delete.cc:
Use new interface to find_temporary_table()
sql/sql_derived.cc:
table_name is now a LEX_STRING
sql/sql_handler.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
sql/sql_insert.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
sql/sql_lex.cc:
Make parsed string a const (to quickly find out if anything is trying to change the query string)
sql/sql_lex.h:
Make parsed string a const (to quickly find out if anything is trying to change the query string)
sql/sql_load.cc:
Safer strxnmov()
sql/sql_parse.cc:
Better error if wrong DB name
sql/sql_partition.cc:
part_info moved to TABLE from TABLE_SHARE
Indentation changes
sql/sql_select.cc:
Indentation fixes
Call field->init(TABLE) for new created fields
Update create_tmp_table() to use TABLE_SHARE properly
sql/sql_select.h:
Call field->init(TABLE) for new created fields
sql/sql_show.cc:
table_name is now a LEX_STRING
part_info moved to TABLE
sql/sql_table.cc:
Use table definition cache to speed up delete of tables
Fixed calls to functions with new interfaces
Don't use 'share_not_to_be_used'
Instead of doing openfrm() when doing repair, we now have to call
get_table_share() followed by open_table_from_share().
Replace some fn_format() with faster unpack_filename().
Safer strxnmov()
part_info is now in TABLE
Added Mikaels patch for partition and ALTER TABLE
Instead of using 'TABLE_SHARE->is_view' use 'table_flags() & HA_NO_COPY_ON_ALTER
sql/sql_test.cc:
table_name and table_cache_key are now LEX_STRING's
sql/sql_trigger.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
safer strxnmov()
Removed compiler warnings
sql/sql_update.cc:
Call field->init(TABLE) after field is created
sql/sql_view.cc:
safer strxnmov()
Create common TABLE_SHARE object for views to allow us to cache if table is a view
sql/structs.h:
Added SHOW_TABLE_DEFINITIONS
sql/table.cc:
Creation and destruct of TABLE_SHARE objects that are common for many TABLE objects
The table opening process now works the following way:
- Create common TABLE_SHARE object
- Read the .frm file and unpack it into the TABLE_SHARE object
- Create a TABLE object based on the information in the TABLE_SHARE
object and open a handler to the table object
open_table_def() is written in such a way that it should be trival to add parsing of the .frm files in new formats
sql/table.h:
TABLE objects for the same database table now share a common TABLE_SHARE object
In TABLE_SHARE the most common strings are now LEX_STRING's
sql/unireg.cc:
Changed arguments to rea_create_table() to have same order as other functions
Call field->init(table) for new created fields
sql/unireg.h:
Added OPEN_VIEW
strings/strxnmov.c:
Change strxnmov() to always add end \0
This makes usage of strxnmov() safer as most of MySQL code assumes that strxnmov() will create a null terminated string
2005-11-23 21:45:02 +01:00
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
unlock tables;
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
unlock tables;
|
|
|
|
|
lock table t1 write;
|
2006-10-04 23:48:24 +02:00
|
|
|
lock table t1 read;
|
Table definition cache, part 2
The table opening process now works the following way:
- Create common TABLE_SHARE object
- Read the .frm file and unpack it into the TABLE_SHARE object
- Create a TABLE object based on the information in the TABLE_SHARE
object and open a handler to the table object
Other noteworthy changes:
- In TABLE_SHARE the most common strings are now LEX_STRING's
- Better error message when table is not found
- Variable table_cache is now renamed 'table_open_cache'
- New variable 'table_definition_cache' that is the number of table defintions that will be cached
- strxnmov() calls are now fixed to avoid overflows
- strxnmov() will now always add one end \0 to result
- engine objects are now created with a TABLE_SHARE object instead of a TABLE object.
- After creating a field object one must call field->init(table) before using it
- For a busy system this change will give you:
- Less memory usage for table object
- Faster opening of tables (if it's has been in use or is in table definition cache)
- Allow you to cache many table definitions objects
- Faster drop of table
mysql-test/mysql-test-run.sh:
Fixed some problems with --gdb option
Test both with socket and tcp/ip port that all old servers are killed
mysql-test/r/flush_table.result:
More tests with lock table with 2 threads + flush table
mysql-test/r/information_schema.result:
Removed old (now wrong) result
mysql-test/r/innodb.result:
Better error messages (thanks to TDC patch)
mysql-test/r/merge.result:
Extra flush table test
mysql-test/r/ndb_bitfield.result:
Better error messages (thanks to TDC patch)
mysql-test/r/ndb_partition_error.result:
Better error messages (thanks to TDC patch)
mysql-test/r/query_cache.result:
Remove tables left from old tests
mysql-test/r/temp_table.result:
Test truncate with temporary tables
mysql-test/r/variables.result:
Table_cache -> Table_open_cache
mysql-test/t/flush_table.test:
More tests with lock table with 2 threads + flush table
mysql-test/t/merge.test:
Extra flush table test
mysql-test/t/multi_update.test:
Added 'sleep' to make test predictable
mysql-test/t/query_cache.test:
Remove tables left from old tests
mysql-test/t/temp_table.test:
Test truncate with temporary tables
mysql-test/t/variables.test:
Table_cache -> Table_open_cache
mysql-test/valgrind.supp:
Remove warning that may happens becasue threads dies in different order
mysys/hash.c:
Fixed wrong DBUG_PRINT
mysys/mf_dirname.c:
More DBUG
mysys/mf_pack.c:
Better comment
mysys/mf_tempdir.c:
More DBUG
Ensure that we call cleanup_dirname() on all temporary directory paths.
If we don't do this, we will get a failure when comparing temporary table
names as in some cases the temporary table name is run through convert_dirname())
mysys/my_alloc.c:
Indentation fix
sql/examples/ha_example.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_example.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_tina.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_tina.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/field.cc:
Update for table definition cache:
- Field creation now takes TABLE_SHARE instead of TABLE as argument
(This is becasue field definitions are now cached in TABLE_SHARE)
When a field is created, one now must call field->init(TABLE) before using it
- Use s->db instead of s->table_cache_key
- Added Field::clone() to create a field in TABLE from a field in TABLE_SHARE
- make_field() takes TABLE_SHARE as argument instead of TABLE
- move_field() -> move_field_offset()
sql/field.h:
Update for table definition cache:
- Field creation now takes TABLE_SHARE instead of TABLE as argument
(This is becasue field definitions are now cached in TABLE_SHARE)
When a field is created, one now must call field->init(TABLE) before using it
- Added Field::clone() to create a field in TABLE from a field in TABLE_SHARE
- make_field() takes TABLE_SHARE as argument instead of TABLE
- move_field() -> move_field_offset()
sql/ha_archive.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_archive.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_berkeley.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Changed name of argument create() to not hide internal 'table' variable.
table->s -> table_share
sql/ha_berkeley.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_blackhole.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_blackhole.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_federated.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Fixed comments
Remove index variable and replace with pointers (simple optimization)
move_field() -> move_field_offset()
Removed some strlen() calls
sql/ha_federated.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_heap.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Simplify delete_table() and create() as the given file names are now without extension
sql/ha_heap.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_innodb.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_innodb.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_myisam.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Remove not needed fn_format()
Fixed for new table->s structure
sql/ha_myisam.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_myisammrg.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Don't set 'is_view' for MERGE tables
Use new interface to find_temporary_table()
sql/ha_myisammrg.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Added flag HA_NO_COPY_ON_ALTER
sql/ha_ndbcluster.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Fixed wrong calls to strxnmov()
Give error HA_ERR_TABLE_DEF_CHANGED if table definition has changed
drop_table -> intern_drop_table()
table->s -> table_share
Move part_info to TABLE
Fixed comments & DBUG print's
New arguments to print_error()
sql/ha_ndbcluster.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_partition.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
We can't set up or use part_info when creating handler as there is not yet any table object
New ha_intialise() to work with TDC (Done by Mikael)
sql/ha_partition.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Got set_part_info() from Mikael
sql/handler.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
ha_delete_table() now also takes database as an argument
handler::ha_open() now takes TABLE as argument
ha_open() now calls ha_allocate_read_write_set()
Simplify ha_allocate_read_write_set()
Remove ha_deallocate_read_write_set()
Use table_share (Cached by table definition cache)
sql/handler.h:
New table flag: HA_NO_COPY_ON_ALTER (used by merge tables)
Remove ha_deallocate_read_write_set()
get_new_handler() now takes TABLE_SHARE as argument
ha_delete_table() now gets database as argument
sql/item.cc:
table_name and db are now LEX_STRING objects
When creating fields, we have now have to call field->init(table)
move_field -> move_field_offset()
sql/item.h:
tmp_table_field_from_field_type() now takes an extra paramenter 'fixed_length' to allow one to force usage of CHAR
instead of BLOB
sql/item_cmpfunc.cc:
Fixed call to tmp_table_field_from_field_type()
sql/item_create.cc:
Assert if new not handled cast type
sql/item_func.cc:
When creating fields, we have now have to call field->init(table)
dummy_table used by 'sp' now needs a TABLE_SHARE object
sql/item_subselect.cc:
Trivial code cleanups
sql/item_sum.cc:
When creating fields, we have now have to call field->init(table)
sql/item_timefunc.cc:
Item_func_str_to_date::tmp_table_field() now replaced by call to
tmp_table_field_from_field_type() (see item_timefunc.h)
sql/item_timefunc.h:
Simply tmp_table_field()
sql/item_uniq.cc:
When creating fields, we have now have to call field->init(table)
sql/key.cc:
Added 'KEY' argument to 'find_ref_key' to simplify code
sql/lock.cc:
More debugging
Use create_table_def_key() to create key for table cache
Allocate TABLE_SHARE properly when creating name lock
Fix that locked_table_name doesn't test same table twice
sql/mysql_priv.h:
New functions for table definition cache
New interfaces to a lot of functions.
New faster interface to find_temporary_table() and close_temporary_table()
sql/mysqld.cc:
Added support for table definition cache of size 'table_def_size'
Fixed som calls to strnmov()
Changed name of 'table_cache' to 'table_open_cache'
sql/opt_range.cc:
Use new interfaces
Fixed warnings from valgrind
sql/parse_file.cc:
Safer calls to strxnmov()
Fixed typo
sql/set_var.cc:
Added variable 'table_definition_cache'
Variable table_cache renamed to 'table_open_cache'
sql/slave.cc:
Use new interface
sql/sp.cc:
Proper use of TABLE_SHARE
sql/sp_head.cc:
Remove compiler warnings
We have now to call field->init(table)
sql/sp_head.h:
Pointers to parsed strings are now const
sql/sql_acl.cc:
table_name is now a LEX_STRING
sql/sql_base.cc:
Main implementation of table definition cache
(The #ifdef's are there for the future when table definition cache will replace open table cache)
Now table definitions are cached indepndent of open tables, which will speed up things when a table is in use at once from several places
Views are not yet cached; For the moment we only cache if a table is a view or not.
Faster implementation of find_temorary_table()
Replace 'wait_for_refresh()' with the more general function 'wait_for_condition()'
Drop table is slightly faster as we can use the table definition cache to know the type of the table
sql/sql_cache.cc:
table_cache_key and table_name are now LEX_STRING
'sDBUG print fixes
sql/sql_class.cc:
table_cache_key is now a LEX_STRING
safer strxnmov()
sql/sql_class.h:
Added number of open table shares (table definitions)
sql/sql_db.cc:
safer strxnmov()
sql/sql_delete.cc:
Use new interface to find_temporary_table()
sql/sql_derived.cc:
table_name is now a LEX_STRING
sql/sql_handler.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
sql/sql_insert.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
sql/sql_lex.cc:
Make parsed string a const (to quickly find out if anything is trying to change the query string)
sql/sql_lex.h:
Make parsed string a const (to quickly find out if anything is trying to change the query string)
sql/sql_load.cc:
Safer strxnmov()
sql/sql_parse.cc:
Better error if wrong DB name
sql/sql_partition.cc:
part_info moved to TABLE from TABLE_SHARE
Indentation changes
sql/sql_select.cc:
Indentation fixes
Call field->init(TABLE) for new created fields
Update create_tmp_table() to use TABLE_SHARE properly
sql/sql_select.h:
Call field->init(TABLE) for new created fields
sql/sql_show.cc:
table_name is now a LEX_STRING
part_info moved to TABLE
sql/sql_table.cc:
Use table definition cache to speed up delete of tables
Fixed calls to functions with new interfaces
Don't use 'share_not_to_be_used'
Instead of doing openfrm() when doing repair, we now have to call
get_table_share() followed by open_table_from_share().
Replace some fn_format() with faster unpack_filename().
Safer strxnmov()
part_info is now in TABLE
Added Mikaels patch for partition and ALTER TABLE
Instead of using 'TABLE_SHARE->is_view' use 'table_flags() & HA_NO_COPY_ON_ALTER
sql/sql_test.cc:
table_name and table_cache_key are now LEX_STRING's
sql/sql_trigger.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
safer strxnmov()
Removed compiler warnings
sql/sql_update.cc:
Call field->init(TABLE) after field is created
sql/sql_view.cc:
safer strxnmov()
Create common TABLE_SHARE object for views to allow us to cache if table is a view
sql/structs.h:
Added SHOW_TABLE_DEFINITIONS
sql/table.cc:
Creation and destruct of TABLE_SHARE objects that are common for many TABLE objects
The table opening process now works the following way:
- Create common TABLE_SHARE object
- Read the .frm file and unpack it into the TABLE_SHARE object
- Create a TABLE object based on the information in the TABLE_SHARE
object and open a handler to the table object
open_table_def() is written in such a way that it should be trival to add parsing of the .frm files in new formats
sql/table.h:
TABLE objects for the same database table now share a common TABLE_SHARE object
In TABLE_SHARE the most common strings are now LEX_STRING's
sql/unireg.cc:
Changed arguments to rea_create_table() to have same order as other functions
Call field->init(table) for new created fields
sql/unireg.h:
Added OPEN_VIEW
strings/strxnmov.c:
Change strxnmov() to always add end \0
This makes usage of strxnmov() safer as most of MySQL code assumes that strxnmov() will create a null terminated string
2005-11-23 21:45:02 +01:00
|
|
|
flush table t1;
|
|
|
|
|
select * from t1;
|
|
|
|
|
a
|
|
|
|
|
1
|
|
|
|
|
unlock tables;
|
|
|
|
|
unlock tables;
|
|
|
|
|
lock table t1 read;
|
2006-10-04 23:48:24 +02:00
|
|
|
lock table t1 write;
|
Table definition cache, part 2
The table opening process now works the following way:
- Create common TABLE_SHARE object
- Read the .frm file and unpack it into the TABLE_SHARE object
- Create a TABLE object based on the information in the TABLE_SHARE
object and open a handler to the table object
Other noteworthy changes:
- In TABLE_SHARE the most common strings are now LEX_STRING's
- Better error message when table is not found
- Variable table_cache is now renamed 'table_open_cache'
- New variable 'table_definition_cache' that is the number of table defintions that will be cached
- strxnmov() calls are now fixed to avoid overflows
- strxnmov() will now always add one end \0 to result
- engine objects are now created with a TABLE_SHARE object instead of a TABLE object.
- After creating a field object one must call field->init(table) before using it
- For a busy system this change will give you:
- Less memory usage for table object
- Faster opening of tables (if it's has been in use or is in table definition cache)
- Allow you to cache many table definitions objects
- Faster drop of table
mysql-test/mysql-test-run.sh:
Fixed some problems with --gdb option
Test both with socket and tcp/ip port that all old servers are killed
mysql-test/r/flush_table.result:
More tests with lock table with 2 threads + flush table
mysql-test/r/information_schema.result:
Removed old (now wrong) result
mysql-test/r/innodb.result:
Better error messages (thanks to TDC patch)
mysql-test/r/merge.result:
Extra flush table test
mysql-test/r/ndb_bitfield.result:
Better error messages (thanks to TDC patch)
mysql-test/r/ndb_partition_error.result:
Better error messages (thanks to TDC patch)
mysql-test/r/query_cache.result:
Remove tables left from old tests
mysql-test/r/temp_table.result:
Test truncate with temporary tables
mysql-test/r/variables.result:
Table_cache -> Table_open_cache
mysql-test/t/flush_table.test:
More tests with lock table with 2 threads + flush table
mysql-test/t/merge.test:
Extra flush table test
mysql-test/t/multi_update.test:
Added 'sleep' to make test predictable
mysql-test/t/query_cache.test:
Remove tables left from old tests
mysql-test/t/temp_table.test:
Test truncate with temporary tables
mysql-test/t/variables.test:
Table_cache -> Table_open_cache
mysql-test/valgrind.supp:
Remove warning that may happens becasue threads dies in different order
mysys/hash.c:
Fixed wrong DBUG_PRINT
mysys/mf_dirname.c:
More DBUG
mysys/mf_pack.c:
Better comment
mysys/mf_tempdir.c:
More DBUG
Ensure that we call cleanup_dirname() on all temporary directory paths.
If we don't do this, we will get a failure when comparing temporary table
names as in some cases the temporary table name is run through convert_dirname())
mysys/my_alloc.c:
Indentation fix
sql/examples/ha_example.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_example.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_tina.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/examples/ha_tina.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/field.cc:
Update for table definition cache:
- Field creation now takes TABLE_SHARE instead of TABLE as argument
(This is becasue field definitions are now cached in TABLE_SHARE)
When a field is created, one now must call field->init(TABLE) before using it
- Use s->db instead of s->table_cache_key
- Added Field::clone() to create a field in TABLE from a field in TABLE_SHARE
- make_field() takes TABLE_SHARE as argument instead of TABLE
- move_field() -> move_field_offset()
sql/field.h:
Update for table definition cache:
- Field creation now takes TABLE_SHARE instead of TABLE as argument
(This is becasue field definitions are now cached in TABLE_SHARE)
When a field is created, one now must call field->init(TABLE) before using it
- Added Field::clone() to create a field in TABLE from a field in TABLE_SHARE
- make_field() takes TABLE_SHARE as argument instead of TABLE
- move_field() -> move_field_offset()
sql/ha_archive.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_archive.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_berkeley.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Changed name of argument create() to not hide internal 'table' variable.
table->s -> table_share
sql/ha_berkeley.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_blackhole.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_blackhole.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_federated.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Fixed comments
Remove index variable and replace with pointers (simple optimization)
move_field() -> move_field_offset()
Removed some strlen() calls
sql/ha_federated.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_heap.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Simplify delete_table() and create() as the given file names are now without extension
sql/ha_heap.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_innodb.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_innodb.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_myisam.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Remove not needed fn_format()
Fixed for new table->s structure
sql/ha_myisam.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_myisammrg.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Don't set 'is_view' for MERGE tables
Use new interface to find_temporary_table()
sql/ha_myisammrg.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Added flag HA_NO_COPY_ON_ALTER
sql/ha_ndbcluster.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Fixed wrong calls to strxnmov()
Give error HA_ERR_TABLE_DEF_CHANGED if table definition has changed
drop_table -> intern_drop_table()
table->s -> table_share
Move part_info to TABLE
Fixed comments & DBUG print's
New arguments to print_error()
sql/ha_ndbcluster.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
sql/ha_partition.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
We can't set up or use part_info when creating handler as there is not yet any table object
New ha_intialise() to work with TDC (Done by Mikael)
sql/ha_partition.h:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
Got set_part_info() from Mikael
sql/handler.cc:
We new use TABLE_SHARE instead of TABLE when creating engine handlers
ha_delete_table() now also takes database as an argument
handler::ha_open() now takes TABLE as argument
ha_open() now calls ha_allocate_read_write_set()
Simplify ha_allocate_read_write_set()
Remove ha_deallocate_read_write_set()
Use table_share (Cached by table definition cache)
sql/handler.h:
New table flag: HA_NO_COPY_ON_ALTER (used by merge tables)
Remove ha_deallocate_read_write_set()
get_new_handler() now takes TABLE_SHARE as argument
ha_delete_table() now gets database as argument
sql/item.cc:
table_name and db are now LEX_STRING objects
When creating fields, we have now have to call field->init(table)
move_field -> move_field_offset()
sql/item.h:
tmp_table_field_from_field_type() now takes an extra paramenter 'fixed_length' to allow one to force usage of CHAR
instead of BLOB
sql/item_cmpfunc.cc:
Fixed call to tmp_table_field_from_field_type()
sql/item_create.cc:
Assert if new not handled cast type
sql/item_func.cc:
When creating fields, we have now have to call field->init(table)
dummy_table used by 'sp' now needs a TABLE_SHARE object
sql/item_subselect.cc:
Trivial code cleanups
sql/item_sum.cc:
When creating fields, we have now have to call field->init(table)
sql/item_timefunc.cc:
Item_func_str_to_date::tmp_table_field() now replaced by call to
tmp_table_field_from_field_type() (see item_timefunc.h)
sql/item_timefunc.h:
Simply tmp_table_field()
sql/item_uniq.cc:
When creating fields, we have now have to call field->init(table)
sql/key.cc:
Added 'KEY' argument to 'find_ref_key' to simplify code
sql/lock.cc:
More debugging
Use create_table_def_key() to create key for table cache
Allocate TABLE_SHARE properly when creating name lock
Fix that locked_table_name doesn't test same table twice
sql/mysql_priv.h:
New functions for table definition cache
New interfaces to a lot of functions.
New faster interface to find_temporary_table() and close_temporary_table()
sql/mysqld.cc:
Added support for table definition cache of size 'table_def_size'
Fixed som calls to strnmov()
Changed name of 'table_cache' to 'table_open_cache'
sql/opt_range.cc:
Use new interfaces
Fixed warnings from valgrind
sql/parse_file.cc:
Safer calls to strxnmov()
Fixed typo
sql/set_var.cc:
Added variable 'table_definition_cache'
Variable table_cache renamed to 'table_open_cache'
sql/slave.cc:
Use new interface
sql/sp.cc:
Proper use of TABLE_SHARE
sql/sp_head.cc:
Remove compiler warnings
We have now to call field->init(table)
sql/sp_head.h:
Pointers to parsed strings are now const
sql/sql_acl.cc:
table_name is now a LEX_STRING
sql/sql_base.cc:
Main implementation of table definition cache
(The #ifdef's are there for the future when table definition cache will replace open table cache)
Now table definitions are cached indepndent of open tables, which will speed up things when a table is in use at once from several places
Views are not yet cached; For the moment we only cache if a table is a view or not.
Faster implementation of find_temorary_table()
Replace 'wait_for_refresh()' with the more general function 'wait_for_condition()'
Drop table is slightly faster as we can use the table definition cache to know the type of the table
sql/sql_cache.cc:
table_cache_key and table_name are now LEX_STRING
'sDBUG print fixes
sql/sql_class.cc:
table_cache_key is now a LEX_STRING
safer strxnmov()
sql/sql_class.h:
Added number of open table shares (table definitions)
sql/sql_db.cc:
safer strxnmov()
sql/sql_delete.cc:
Use new interface to find_temporary_table()
sql/sql_derived.cc:
table_name is now a LEX_STRING
sql/sql_handler.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
sql/sql_insert.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
sql/sql_lex.cc:
Make parsed string a const (to quickly find out if anything is trying to change the query string)
sql/sql_lex.h:
Make parsed string a const (to quickly find out if anything is trying to change the query string)
sql/sql_load.cc:
Safer strxnmov()
sql/sql_parse.cc:
Better error if wrong DB name
sql/sql_partition.cc:
part_info moved to TABLE from TABLE_SHARE
Indentation changes
sql/sql_select.cc:
Indentation fixes
Call field->init(TABLE) for new created fields
Update create_tmp_table() to use TABLE_SHARE properly
sql/sql_select.h:
Call field->init(TABLE) for new created fields
sql/sql_show.cc:
table_name is now a LEX_STRING
part_info moved to TABLE
sql/sql_table.cc:
Use table definition cache to speed up delete of tables
Fixed calls to functions with new interfaces
Don't use 'share_not_to_be_used'
Instead of doing openfrm() when doing repair, we now have to call
get_table_share() followed by open_table_from_share().
Replace some fn_format() with faster unpack_filename().
Safer strxnmov()
part_info is now in TABLE
Added Mikaels patch for partition and ALTER TABLE
Instead of using 'TABLE_SHARE->is_view' use 'table_flags() & HA_NO_COPY_ON_ALTER
sql/sql_test.cc:
table_name and table_cache_key are now LEX_STRING's
sql/sql_trigger.cc:
TABLE_SHARE->db and TABLE_SHARE->table_name are now LEX_STRING's
safer strxnmov()
Removed compiler warnings
sql/sql_update.cc:
Call field->init(TABLE) after field is created
sql/sql_view.cc:
safer strxnmov()
Create common TABLE_SHARE object for views to allow us to cache if table is a view
sql/structs.h:
Added SHOW_TABLE_DEFINITIONS
sql/table.cc:
Creation and destruct of TABLE_SHARE objects that are common for many TABLE objects
The table opening process now works the following way:
- Create common TABLE_SHARE object
- Read the .frm file and unpack it into the TABLE_SHARE object
- Create a TABLE object based on the information in the TABLE_SHARE
object and open a handler to the table object
open_table_def() is written in such a way that it should be trival to add parsing of the .frm files in new formats
sql/table.h:
TABLE objects for the same database table now share a common TABLE_SHARE object
In TABLE_SHARE the most common strings are now LEX_STRING's
sql/unireg.cc:
Changed arguments to rea_create_table() to have same order as other functions
Call field->init(table) for new created fields
sql/unireg.h:
Added OPEN_VIEW
strings/strxnmov.c:
Change strxnmov() to always add end \0
This makes usage of strxnmov() safer as most of MySQL code assumes that strxnmov() will create a null terminated string
2005-11-23 21:45:02 +01:00
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flush table t1;
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select * from t1;
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a
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1
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unlock tables;
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unlock tables;
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select * from t1;
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a
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1
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2004-06-24 15:06:56 +02:00
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drop table t1;
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create table t1(table_id char(20) primary key);
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create table t2(table_id char(20) primary key);
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insert into t1 values ('test.t1');
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insert into t1 values ('');
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insert into t2 values ('test.t2');
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insert into t2 values ('');
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handler t1 open as a1;
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handler t1 open as a2;
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handler t2 open;
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handler a1 read first limit 9;
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table_id
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test.t1
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handler a2 read first limit 9;
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table_id
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test.t1
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handler t2 read first limit 9;
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table_id
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test.t2
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flush tables;
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handler a1 read first limit 9;
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2004-09-24 18:39:25 +02:00
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table_id
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|
|
test.t1
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|
2004-06-24 15:06:56 +02:00
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handler a2 read first limit 9;
|
2004-09-24 18:39:25 +02:00
|
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|
table_id
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|
|
|
|
test.t1
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|
2004-06-24 15:06:56 +02:00
|
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handler t2 read first limit 9;
|
2004-09-24 18:39:25 +02:00
|
|
|
table_id
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|
|
|
|
test.t2
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|
2004-06-24 15:06:56 +02:00
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handler t1 open as a1;
|
2004-10-07 09:50:13 +02:00
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|
|
ERROR 42000: Not unique table/alias: 'a1'
|
2004-06-24 15:06:56 +02:00
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handler t1 open as a2;
|
2004-10-07 09:50:13 +02:00
|
|
|
ERROR 42000: Not unique table/alias: 'a2'
|
2004-06-24 15:06:56 +02:00
|
|
|
handler t2 open;
|
2004-10-07 09:50:13 +02:00
|
|
|
ERROR 42000: Not unique table/alias: 't2'
|
2004-06-24 15:06:56 +02:00
|
|
|
handler a1 read first limit 9;
|
|
|
|
|
table_id
|
|
|
|
|
test.t1
|
|
|
|
|
|
|
|
|
|
handler a2 read first limit 9;
|
|
|
|
|
table_id
|
|
|
|
|
test.t1
|
|
|
|
|
|
|
|
|
|
handler t2 read first limit 9;
|
|
|
|
|
table_id
|
|
|
|
|
test.t2
|
|
|
|
|
|
|
|
|
|
flush table t1;
|
|
|
|
|
handler a1 read first limit 9;
|
2004-09-24 18:39:25 +02:00
|
|
|
table_id
|
|
|
|
|
test.t1
|
|
|
|
|
|
2004-06-24 15:06:56 +02:00
|
|
|
handler a2 read first limit 9;
|
2004-09-24 18:39:25 +02:00
|
|
|
table_id
|
|
|
|
|
test.t1
|
|
|
|
|
|
2004-06-24 15:06:56 +02:00
|
|
|
handler t2 read first limit 9;
|
|
|
|
|
table_id
|
|
|
|
|
test.t2
|
|
|
|
|
|
|
|
|
|
flush table t2;
|
|
|
|
|
handler t2 close;
|
|
|
|
|
drop table t1;
|
|
|
|
|
drop table t2;
|
2004-09-24 18:39:25 +02:00
|
|
|
create table t1(table_id char(20) primary key);
|
|
|
|
|
insert into t1 values ('Record-01');
|
|
|
|
|
insert into t1 values ('Record-02');
|
|
|
|
|
insert into t1 values ('Record-03');
|
|
|
|
|
insert into t1 values ('Record-04');
|
|
|
|
|
insert into t1 values ('Record-05');
|
|
|
|
|
handler t1 open;
|
|
|
|
|
handler t1 read first limit 1;
|
|
|
|
|
table_id
|
|
|
|
|
Record-01
|
|
|
|
|
handler t1 read next limit 1;
|
|
|
|
|
table_id
|
|
|
|
|
Record-02
|
|
|
|
|
handler t1 read next limit 1;
|
|
|
|
|
table_id
|
|
|
|
|
Record-03
|
|
|
|
|
flush table t1;
|
|
|
|
|
handler t1 read next limit 1;
|
|
|
|
|
table_id
|
|
|
|
|
Record-01
|
|
|
|
|
handler t1 read next limit 1;
|
|
|
|
|
table_id
|
|
|
|
|
Record-02
|
|
|
|
|
handler t1 close;
|
|
|
|
|
drop table t1;
|
2005-08-03 00:01:27 +02:00
|
|
|
FLUSH TABLES WITH READ LOCK ;
|
|
|
|
|
FLUSH TABLES WITH READ LOCK ;
|
|
|
|
|
UNLOCK TABLES;
|