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
Makefile.am:
Changes to autoconf subst
config/ac-macros/ha_berkeley.m4:
simplify
config/ac-macros/ha_ndbcluster.m4:
simplify
config/ac-macros/ha_partition.m4:
simplify
configure.in:
strip configure of storage engine specific cruft and simplify
extra/Makefile.am:
changes to autoconf/automake subst
libmysqld/Makefile.am:
only compile storage engines if required.
make find object file a little smarter
libmysqld/examples/Makefile.am:
changes to autoconf subst
mysql-test/Makefile.am:
remove storage engine specific cruft
mysql-test/r/ps_1general.result:
cannot gaurantee order of results from 'show storage engines'
mysql-test/r/show_check.result:
fix test - frm file fails to be deleted if it is invalid
mysql-test/r/sql_mode.result:
isam does not exist, test may need to be redone/fixed in 5.0
mysql-test/r/warnings.result:
isam no longer exists
mysql-test/t/ps_1general.test:
cannot gaurantee order of results from 'show storage engines'
mysql-test/t/show_check.test:
fix test - frm file fails to be deleted if it is invalid
mysql-test/t/sql_mode.test:
isam does not exist, test may need to be redone/fixed in 5.0
mysql-test/t/system_mysql_db_fix.test:
change isam to myisam
mysql-test/t/view.test:
change isam to myisam
mysql-test/t/warnings.test:
isam no longer exists
sql/Makefile.am:
Make storage engines "pluggable" stage 1
only compile storage engines if included
sql/examples/ha_example.cc:
handlerton work
sql/examples/ha_example.h:
handlerton work
sql/examples/ha_tina.cc:
handlerton work
sql/examples/ha_tina.h:
handlerton work
sql/ha_archive.cc:
handlerton work
sql/ha_archive.h:
handlerton work
sql/ha_berkeley.cc:
handlerton work
sql/ha_berkeley.h:
handlerton work
sql/ha_blackhole.cc:
handlerton work
sql/ha_federated.cc:
handlerton work
sql/ha_federated.h:
handlerton work
sql/ha_heap.cc:
handlerton work
sql/ha_innodb.cc:
handlerton work
sql/ha_innodb.h:
handlerton work
sql/ha_myisam.cc:
handlerton work
sql/ha_myisammrg.cc:
handlerton work
sql/ha_ndbcluster.cc:
handlerton work
sql/ha_ndbcluster.h:
handlerton work
sql/ha_partition.cc:
handlerton work
sql/handler.cc:
start removing storage engine specific cruft
sql/handler.h:
start removing storage engine specific cruft
db_type for binlog handlerton
handlerton flag for not-user-selectable storage engines
sql/lex.h:
start removing storage engine specific cruft
sql/log.cc:
handlerton work
give binlog handlerton a 'real' db_type
sql/mysql_priv.h:
start removing storage engine specific cruft
sql/mysqld.cc:
start removing storage engine specific cruft
sql/set_var.cc:
start removing storage engine specific cruft
sql/sp_head.cc:
start removing storage engine specific cruft
sql/sql_class.cc:
start removing storage engine specific cruft
sql/sql_class.h:
start removing storage engine specific cruft
sql/sql_lex.h:
start removing storage engine specific cruft
sql/sql_manager.cc:
start removing storage engine specific cruft
sql/sql_manager.h:
start removing storage engine specific cruft
sql/sql_parse.cc:
start removing storage engine specific cruft
sql/sql_partition.cc:
start removing storage engine specific cruft
sql/sql_prepare.cc:
start removing storage engine specific cruft
sql/sql_show.cc:
start removing storage engine specific cruft
sql/sql_table.cc:
changed define from HAVE_PARTITION_DB to WITH_PARTITION_STORAGE_ENGINE
start removing storage engine specific cruft
sql/sql_update.cc:
changed define from HAVE_PARTITION_DB to WITH_PARTITION_STORAGE_ENGINE
sql/sql_yacc.yy:
start removing storage engine specific cruft
test if we should throw error
sql/table.cc:
changed define from HAVE_PARTITION_DB to WITH_PARTITION_STORAGE_ENGINE
sql/table.h:
changed define from HAVE_PARTITION_DB to WITH_PARTITION_STORAGE_ENGINE
sql/unireg.cc:
changed define from HAVE_PARTITION_DB to WITH_PARTITION_STORAGE_ENGINE
storage/ndb/include/kernel/kernel_types.h:
added my_config.h
storage/ndb/include/ndb_global.h.in:
added my_config.h
storage/ndb/include/ndb_types.h.in:
added my_config.h
config/ac-macros/storage.m4:
New BitKeeper file ``config/ac-macros/storage.m4''
sql/handlerton.cc.in:
New BitKeeper file ``sql/handlerton.cc.in''
into zim.(none):/home/brian/mysql/fix-5.0
sql/ha_blackhole.cc:
Auto merged
sql/ha_heap.cc:
Auto merged
sql/ha_innodb.cc:
Auto merged
sql/examples/ha_example.cc:
Auto merged
sql/examples/ha_tina.cc:
Auto merged
sql/ha_archive.cc:
Auto merged
sql/ha_archive.h:
Auto merged
sql/ha_myisam.cc:
Auto merged
sql/ha_myisammrg.cc:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/handler.h:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/sql_show.cc:
Auto merged
sql/ha_federated.cc:
Merge fix.
Handlerton array is now created instead of using sys_table_types_st. All storage engines can now have inits and giant ifdef's are now gone for startup. No compeltely clean yet, handlertons will next be merged with sys_table_types. Federated and archive now have real cleanup if their inits fail.
sql/examples/ha_archive.cc:
Modifications for new ha_init code. The init method now checks for errors and will not start up if the errors occur.
sql/examples/ha_archive.h:
Change for new init method.
sql/examples/ha_example.cc:
New handlerton pieces.
sql/examples/ha_tina.cc:
New handlerton pieces.
sql/ha_berkeley.cc:
New handlerton pieces, plus changes for ha_init changes. I'm not happy with our current "skip" setup.
sql/ha_berkeley.h:
Change in init return.
sql/ha_blackhole.cc:
Changes for new handlerton pieces.
sql/ha_federated.cc:
Changes for new handlerton and true cleanup code.
sql/ha_heap.cc:
Changes for new handlerton returns.
sql/ha_innodb.cc:
Changes for handlerton code.
sql/ha_innodb.h:
Change in init.
sql/ha_myisam.cc:
Changes for additional handlerton bits.
sql/ha_myisammrg.cc:
Changes for new handlerton bits.
sql/ha_ndbcluster.cc:
Changes for new handlerton bits.
sql/ha_ndbcluster.h:
Changes for handlerton bits.
sql/handler.cc:
Changes for ditching show_table_type_st types, and collapsing it into a handlerton array. The ha_init now just loops through all handlers to init (much cleaner...). handlertons and sys_table_types should be merged next.
sql/handler.h:
Additions for sys_table_types
sql/log.cc:
Clean up of binlog for changes in handlerton
sql/mysql_priv.h:
Removed unneeded define for binlog_init
sql/sql_show.cc:
Changes for change in handlerton to sys_table_types
BUG#13108
mysql-test/r/federated.result:
added test results for federated alter table
mysql-test/t/federated.test:
added test for federated alter table
sql/examples/ha_example.cc:
supports table re-creation
sql/examples/ha_tina.cc:
supports table re-creation
sql/ha_blackhole.cc:
supports table re-creation
sql/ha_federated.cc:
added flag for not supporting alter
sql/ha_heap.cc:
supports table recreation
sql/ha_myisam.cc:
supports table recreation
sql/ha_myisammrg.cc:
supports table re-creation
sql/handler.cc:
implemented flag check function
sql/handler.h:
added additional handlerton flags
created a function to test flags
replace ha_supports_generate macro with call to flag check
sql/sql_delete.cc:
replaced ha_supports_generate with handlerton flag check
sql/sql_table.cc:
added check for handlerton check for alter support
sql/examples/ha_archive.cc:
Now declared externally.
sql/examples/ha_example.cc:
Now declared externally
sql/examples/ha_tina.cc:
Now declared externally
sql/ha_berkeley.cc:
Now declared externally
sql/ha_blackhole.cc:
Now declared externally
sql/ha_federated.cc:
Now declared externally.
sql/ha_heap.cc:
Now declared externally.
sql/ha_innodb.cc:
Now declared externally.
sql/ha_myisam.cc:
Now declared externally
sql/ha_myisammrg.cc:
Now declared externally.
sql/ha_ndbcluster.cc:
Now declared externally.
sql/handler.cc:
Changes for eventual loadable engines. This will allow us to gain faster access to the handlerton (eventually this will just be a handlteron array).
sql/handler.h:
New alias structure and change to show_table_st to place handlerton in the structure.
into mishka.local:/home/my/mysql-5.0
BitKeeper/etc/ignore:
auto-union
BitKeeper/deleted/.del-Grep.cpp~ad798e9ae519d667:
Auto merged
BitKeeper/deleted/.del-Grep.hpp~b05e3af6cfabe387:
Auto merged
BitKeeper/deleted/.del-ctype_cp932.result:
Auto merged
BitKeeper/deleted/.del-ctype_cp932.test:
Auto merged
BitKeeper/deleted/.del-have_lowercase0.inc:
Delete: mysql-test/include/have_lowercase0.inc
VC++Files/mysql-test/mysql_test_run_new.dsp:
Auto merged
configure.in:
Auto merged
mysql-test/include/ps_conv.inc:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
sql/ha_innodb.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/set_var.cc:
Auto merged
sql/examples/ha_archive.cc:
Auto merged
sql/examples/ha_example.cc:
Auto merged
sql/sql_table.cc:
Auto merged
support-files/mysql.spec.sh:
Auto merged
VC++Files/client/mysqltest.dsp:
manual merge
VC++Files/sql/mysqld.dsp:
manual merge
mysql-test/r/grant2.result:
patch merge
mysql-test/r/subselect2.result:
manual merge
mysql-test/t/grant2.test:
patch merge
mysys/charset.c:
Remove already deleted function
sql/examples/ha_archive.h:
Manual merge
sql/sql_acl.cc:
manual merge
sql/sql_db.cc:
merge (no differences)
sql/sql_select.cc:
manual merge
sql/table.h:
merge (no differences)
tests/mysql_client_test.c:
patch merge
Added archive and example storage engine to Windows build
ha_example.cc, ha_archive.cc:
Windows fix, use relative include path to "mysql_priv.h"
ha_archive.h:
Windows VC6 compile needed (char*) cast of byte var
mysqltest.dsp, mysql_test_run_new.dsp:
Added /FD flag, to avoid include file warnings
VC++Files/mysql-test/mysql_test_run_new.dsp:
Added /FD flag, to avoid include file warnings
VC++Files/client/mysqltest.dsp:
Added /FD flag, to avoid include file warnings
sql/examples/ha_archive.h:
Windows VC6 compile needed (char*) cast of byte var
sql/examples/ha_archive.cc:
Windows fix, use relative include path to "mysql_priv.h"
sql/examples/ha_example.cc:
Windows fix, use relative include path to "mysql_priv.h"
VC++Files/sql/mysqld.dsp:
Added archive and example storage engine to Windows build
cursors. This should fix Bug#11813 when InnoDB part is in
(tested with a draft patch).
The idea of the patch is that if a storage engine supports
consistent read views, we open one when open a cursor,
set is as the active view when fetch from the cursor, and close
together with cursor close.
sql/examples/ha_archive.cc:
- extend handlerton with cursors methods; fix coding style
sql/examples/ha_example.cc:
- extend handlerton with cursors methods; fix coding style
sql/examples/ha_tina.cc:
- extend handlerton with cursors methods; fix coding style
sql/ha_berkeley.cc:
- extend handlerton with cursors methods
sql/ha_blackhole.cc:
- extend handlerton with cursors methods; fix coding style
sql/ha_federated.cc:
- extend handlerton with cursors methods; fix coding style
sql/ha_heap.cc:
- extend handlerton with cursors methods; fix coding style
sql/ha_innodb.cc:
- extend handlerton with cursors methods
sql/ha_myisam.cc:
- extend handlerton with cursors methods; fix coding style
sql/ha_myisammrg.cc:
- extend handlerton with cursors methods; fix coding style
sql/ha_ndbcluster.cc:
- extend handlerton with cursors methods
sql/handler.h:
- extend handlerton with cursors methods
sql/sql_select.cc:
- create a consistent read view when we open a cursor,
set it for a fetch, and free when we closing the cursor.
sql/sql_select.h:
- add Cursor::ht_info to remember read views used in a cursor.
tests/mysql_client_test.c:
Disable an assert that will be no longer valid when consistent
read views in InnoDB are used.
The idea of the patch
is that every cursor gets its own lock id for table level locking.
Thus cursors are protected from updates performed within the same
connection. Additionally a list of transient (must be closed at
commit) cursors is maintained and all transient cursors are closed
when necessary. Lastly, this patch adds support for deadlock
timeouts to TLL locking when using cursors.
+ post-review fixes.
include/thr_lock.h:
- add a notion of lock owner to table level locking. When using
cursors, lock owner can not be identified by a thread id any more,
as we must protect cursors from updates issued within the same
connection (thread). So, each cursor has its own lock identifier to
use with table level locking.
- extend return values of thr_lock and thr_multi_lock with
THR_LOCK_TIMEOUT and THR_LOCK_DEADLOCK, since these conditions
are now possible (see comments to thr_lock.c)
mysys/thr_lock.c:
Better support for cursors:
- use THR_LOCK_OWNER * as lock identifier, not pthread_t.
- check and return an error for a trivial deadlock case, when an
update statement is issued to a table locked by a cursor which has
been previously opened in the same connection.
- add support for locking timeouts: with use of cursors, trivial
deadlocks can occur. For now the only remedy is the lock wait timeout,
which is initialized from a new global variable 'table_lock_wait_timeout'
Example of a deadlock (assuming the storage engine does not downgrade
locks):
con1: open cursor for select * from t1;
con2: open cursor for select * from t2;
con1: update t2 set id=id*2; -- blocked
con2: update t1 set id=id*2; -- deadlock
Lock timeouts are active only if a connection is using cursors.
- the check in the wait_for_lock loop has been changed from
data->cond != cond to data->cond != 0. data->cond is zeroed
in every place it's changed.
- added comments
sql/examples/ha_archive.cc:
- extend the handlerton with the info about cursor behaviour at commit.
sql/examples/ha_archive.h:
- ctor moved to .cc to make use of archive handlerton
sql/examples/ha_example.cc:
- add handlerton instance, init handler::ht with it
sql/examples/ha_example.h:
- ctor moved to .cc to make use of ha_example handlerton
sql/examples/ha_tina.cc:
- add handlerton instance, init handler::ht with it
sql/examples/ha_tina.h:
- ctor moved to .cc to make use of CSV handlerton
sql/ha_berkeley.cc:
- init handlerton::flags and handler::ht
sql/ha_berkeley.h:
- ctor moved to .cc to make use of BerkeleyDB handlerton
sql/ha_blackhole.cc:
- add handlerton instance, init handler::ht with it
sql/ha_blackhole.h:
- ctor moved to .cc to make use of blackhole handlerton
sql/ha_federated.cc:
- add handlerton instance, init handler::ht with it
sql/ha_federated.h:
- ctor moved to .cc to make use of federated handlerton
sql/ha_heap.cc:
- add handlerton instance, init handler::ht with it
sql/ha_heap.h:
- ctor moved to .cc to make use of ha_heap handlerton
sql/ha_innodb.cc:
- init handlerton::flags and handler::ht of innobase storage engine
sql/ha_innodb.h:
- ctor moved to .cc to make use of archive handlerton
sql/ha_myisam.cc:
- add handlerton instance, init handler::ht with it
sql/ha_myisam.h:
- ctor moved to .cc to make use of MyISAM handlerton
sql/ha_myisammrg.cc:
- init handler::ht in the ctor
sql/ha_myisammrg.h:
- ctor moved to .cc to make use of MyISAM MERGE handlerton
sql/ha_ndbcluster.cc:
- init handlerton::flags and handler::ht
sql/handler.cc:
- drop support for ISAM storage engine, which was removed from 5.0
- close all "transient" cursors at COMMIT/ROLLBACK. A "transient"
SQL level cursor is a cursor that uses tables that have a transaction-
specific state.
sql/handler.h:
- extend struct handlerton with flags, add handlerton *ht to every
handler instance.
sql/lock.cc:
- extend mysql_lock_tables to send error to the client if
thr_multi_lock returns a timeout or a deadlock error.
sql/mysqld.cc:
- add server option --table_lock_wait_timeout (in seconds)
sql/set_var.cc:
- add new global variable 'table_lock_wait_timeout' to specify
a wait timeout for table-level locks of MySQL (in seconds). The default
timeout is 50 seconds. The timeout is active only if the connection
has open cursors.
sql/sql_class.cc:
- implement Statement_map::close_transient_cursors
- safety suggests that we need an assert ensuring
llock_info->n_cursors is functioning properly, adjust destruction of
the Statement_map to allow such assert in THD::~THD
sql/sql_class.h:
- add support for Cursors registry to Statement map.
sql/sql_prepare.cc:
- maintain a list of cursors that must be closed at commit/rollback.
sql/sql_select.cc:
- extend class Cursor to support specific at-COMMIT/ROLLBACK behavior.
If a cursor uses tables of a storage engine that
invalidates all open tables at COMMIT/ROLLBACK, it must be closed
before COMMIT/ROLLBACK is executed.
sql/sql_select.h:
- add an own lock_id and commit/rollback status flag to class Cursor
tests/mysql_client_test.c:
A test case for Bug#10760 and complementary issues: test a simple
deadlock case too.
mysql-test/var:
New BitKeeper file ``mysql-test/var''
BitKeeper/etc/logging_ok:
auto-union
client/sql_string.cc:
Auto merged
configure.in:
Auto merged
include/my_global.h:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/r/create.result:
Auto merged
mysql-test/r/olap.result:
Auto merged
mysql-test/r/warnings.result:
Auto merged
mysql-test/t/create.test:
Auto merged
mysql-test/t/warnings.test:
Auto merged
mysys/raid.cc:
Auto merged
scripts/make_binary_distribution.sh:
Auto merged
sql/field.cc:
Auto merged
BitKeeper/deleted/.del-ha_isam.cc~4dce65904db2675e:
Auto merged
BitKeeper/deleted/.del-ha_isammrg.cc~dc682e4755d77a2e:
Auto merged
sql/ha_berkeley.cc:
Auto merged
sql/ha_blackhole.cc:
Auto merged
sql/ha_heap.cc:
Auto merged
sql/ha_innodb.cc:
Auto merged
sql/ha_myisam.cc:
Auto merged
sql/ha_myisammrg.cc:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_geofunc.cc:
Auto merged
sql/item_strfunc.cc:
Auto merged
sql/item_subselect.cc:
Auto merged
sql/item_sum.cc:
Auto merged
sql/item_timefunc.cc:
Auto merged
sql/item_uniq.cc:
Auto merged
sql/lock.cc:
Auto merged
sql/log_event.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/opt_range.h:
Auto merged
sql/procedure.cc:
Auto merged
sql/protocol.cc:
Auto merged
sql/protocol_cursor.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_analyse.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_error.cc:
Auto merged
sql/sql_handler.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_map.cc:
Auto merged
sql/sql_olap.cc:
Auto merged
sql/sql_repl.cc:
Auto merged
sql/sql_string.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_udf.cc:
Auto merged
sql/examples/ha_archive.cc:
Auto merged
sql/examples/ha_example.cc:
Auto merged
sql/examples/ha_tina.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
sql/tztime.cc:
Auto merged
strings/ctype-win1250ch.c:
Auto merged
mysql-test/r/func_gconcat.result:
merge & ensure that 4.1 and 5.0 source have tests in same order
mysql-test/r/innodb.result:
merge & ensure that 4.1 and 5.0 source have tests in same order
mysql-test/t/func_gconcat.test:
merge & ensure that 4.1 and 5.0 source have tests in same order
mysql-test/t/innodb.test:
merge & ensure that 4.1 and 5.0 source have tests in same order
sql/item_func.cc:
merge
sql/mysqld.cc:
merge
sql/opt_range.cc:
merge
sql/sql_parse.cc:
merge
Give better name to goto labels
sql/sql_select.cc:
merge
BitKeeper/deleted/.del-ha_isam.cc~4dce65904db2675e:
Auto merged
BitKeeper/deleted/.del-ha_isammrg.cc~dc682e4755d77a2e:
Auto merged
client/mysqladmin.cc:
Auto merged
client/sql_string.cc:
Auto merged
mysys/raid.cc:
Auto merged
sql/field.cc:
Auto merged
sql/ha_berkeley.cc:
Auto merged
sql/ha_blackhole.cc:
Auto merged
sql/ha_heap.cc:
Auto merged
sql/ha_innodb.cc:
Auto merged
sql/ha_myisam.cc:
Auto merged
sql/ha_myisammrg.cc:
Auto merged
sql/ha_ndbcluster.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item_cmpfunc.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_geofunc.cc:
Auto merged
sql/item_strfunc.cc:
Auto merged
sql/item_subselect.cc:
Auto merged
sql/item_sum.cc:
Auto merged
sql/item_timefunc.cc:
Auto merged
sql/item_uniq.cc:
Auto merged
sql/log_event.cc:
Auto merged
sql/opt_range.h:
Auto merged
sql/procedure.cc:
Auto merged
sql/protocol.cc:
Auto merged
sql/protocol_cursor.cc:
Auto merged
sql/repl_failsafe.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/slave.cc:
Auto merged
sql/sql_analyse.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/examples/ha_example.cc:
Auto merged
sql/examples/ha_tina.cc:
Auto merged
sql/sql_map.cc:
Auto merged
sql/sql_olap.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_repl.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_string.cc:
Auto merged
sql/sql_udf.cc:
Auto merged
sql/tztime.cc:
Auto merged
sql/examples/ha_archive.cc:
Merge fix
sql/mysqld.cc:
Hand merge
sql/opt_range.cc:
Hand Merge
sql/sql_acl.cc:
Hand Merge
sql/ha_heap.cc:
Auto merged
sql/item_subselect.cc:
Auto merged
sql/sql_acl.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/examples/ha_archive.cc:
Auto merged
sql/examples/ha_example.cc:
Auto merged
sql/examples/ha_tina.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_repl.cc:
SCCS merged
Set #pragma implementation" earlier
Many files:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
client/sql_string.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
mysys/raid.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/field.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/ha_berkeley.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/ha_blackhole.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/ha_heap.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/ha_innodb.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/ha_isam.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/ha_isammrg.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/ha_myisam.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/ha_myisammrg.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/ha_ndbcluster.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/handler.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/hash_filo.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/item.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/item_cmpfunc.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/item_func.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/item_geofunc.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/item_strfunc.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/item_subselect.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/item_sum.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/item_timefunc.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/item_uniq.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/log_event.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/opt_range.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/procedure.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/protocol.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/protocol_cursor.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/set_var.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/sql_analyse.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/sql_class.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/sql_crypt.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/sql_list.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/sql_map.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/sql_olap.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/examples/ha_archive.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/sql_select.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/sql_string.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/sql_udf.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/examples/ha_example.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/examples/ha_tina.cc:
Need to include <my_global.h> before #ifdef USE_PRAGMA_IMPLEMENTATION
sql/tztime.cc:
Set #pragma implementation" earlier
client/mysqladmin.cc:
gcc 4.0 fix
sql/examples/ha_archive.cc:
Bunch of little cleanups from -Wall and gcc 4.0 fixes
sql/examples/ha_example.cc:
Noticed that the error call was not quite right.
sql/examples/ha_tina.cc:
Bunch of cleanups (many of which were quite dumb of me... and I have no earthly idea how they missed everyone's notice).
sql/ha_heap.cc:
Removed unused variable (-Wall find)
sql/item_subselect.cc:
Removed unused label.
sql/mysqld.cc:
Cleanup of unused function and gcc 4.0 bit.
sql/opt_range.h:
Cleanup for gcc 4.0
sql/repl_failsafe.cc:
Cleanup for gcc 4.0
sql/slave.cc:
Cleanup for gcc 4.0
sql/sql_acl.cc:
Cleanup for gcc 4.0
sql/sql_insert.cc:
Cleanedup for gcc 4.0
sql/sql_parse.cc:
Cleanedup for gcc 4.0
sql/sql_repl.cc:
Removed unused variable
sql/sql_select.cc:
Cleanedup for gcc 4.0
- Remove linking of libsupc++
- Move all local static variables to filescope
configure.in:
Remove linking with libsupc++
sql/examples/ha_archive.cc:
Move local static variables to file scope
sql/examples/ha_example.cc:
Move local static variables to file scope
sql/examples/ha_tina.cc:
Move local static variables to file scope
sql/ha_berkeley.cc:
Move local static variables to file scope
sql/ha_blackhole.cc:
Move local static variables to file scope
sql/ha_federated.cc:
Move local static variables to file scope
sql/ha_heap.cc:
Move local static variables to file scope
sql/ha_innodb.cc:
Move local static variables to file scope
sql/ha_myisam.cc:
Move local static variables to file scope
sql/ha_myisammrg.cc:
Move local static variables to file scope
sql/ha_ndbcluster.cc:
Move local static variables to file scope
sql/item.cc:
Move local static instance variables to file scope
sql/item_sum.cc:
Move local static variables to file scope
Now we use TABLE::timestamp_field_type instead of
TABLE::timestamp_default_now/on_update_now for determining
if we should auto-set value of TIMESTAMP field during this operation.
We are also use Field_timestamp::set_time() instead of
handler::update_timestamp().
sql/examples/ha_example.cc:
Now we use TABLE::timestamp_field_type instead of
TABLE::timestamp_default_now/on_update_now for determining
if we should auto-set value of TIMESTAMP field during this operation.
We are also use Field_timestamp::set_time() instead of
handler::update_timestamp().
sql/examples/ha_tina.cc:
Now we use TABLE::timestamp_field_type instead of
TABLE::timestamp_default_now/on_update_now for determining
if we should auto-set value of TIMESTAMP field during this operation.
We are also use Field_timestamp::set_time() instead of
handler::update_timestamp().
A couple of small changes to ha_example (mainly comments).
sql/examples/ha_archive.cc:
Changes from Serg.
A few styles changes, fix for potential hash insert gone wrong, removed bad tables if create fails, gzflush used for flushing by default (had problems with OSX 10.2), and some spelling corrections.
sql/examples/ha_archive.h:
Removed fast_key_read() and changed the name of a conflicting variable.
sql/examples/ha_example.cc:
Added a few new comments.
sql/examples/ha_example.h:
Added pragma interface. Removed fast_key_read() and Serg's request
New records_in_range() interface (similar to read_range())
Macros for faster bitmap handling
Simplify read_range() code (#WL1786)
New general key_cmp() function to compare keys
heap/hp_hash.c:
New records_in_range() interface
include/heap.h:
New records_in_range() interface
include/my_base.h:
Moved 'key_range' here so that all table handlers can use it
include/my_bitmap.h:
Make some bitmap functions inline for faster usage in one thread
include/myisam.h:
New records_in_range() interface
include/myisammrg.h:
New records_in_range() interface
myisam/mi_range.c:
New records_in_range() interface
myisam/mi_test2.c:
New records_in_range() interface
myisam/rt_test.c:
New records_in_range() interface
Indentation fixes
myisam/sp_test.c:
New records_in_range() interface
Indentation fixes
myisammrg/myrg_range.c:
New records_in_range() interface
mysys/my_bitmap.c:
Make some bitmap functions inline for faster usage in one thread
sql/examples/ha_example.cc:
New records_in_range() interface
sql/field.cc:
Fixed indentation
sql/ha_berkeley.cc:
New records_in_range() interface
sql/ha_berkeley.h:
New records_in_range() interface
sql/ha_heap.cc:
New records_in_range() interface
sql/ha_heap.h:
New records_in_range() interface
sql/ha_innodb.cc:
New records_in_range() interface
sql/ha_innodb.h:
New records_in_range() interface
sql/ha_isam.cc:
New records_in_range() interface
sql/ha_isam.h:
New records_in_range() interface
sql/ha_myisam.cc:
New records_in_range() interface
sql/ha_myisam.h:
New records_in_range() interface
sql/ha_myisammrg.cc:
New records_in_range() interface
sql/ha_myisammrg.h:
New records_in_range() interface
sql/ha_ndbcluster.cc:
New records_in_range() interface
sql/ha_ndbcluster.h:
New records_in_range() interface
sql/handler.cc:
Simplify read_range() interface:
- Add 'eq_range' to read_range_first
- Remove 'eq_range' parameer from read_range_next()
- Trust values from index_next_same()
- Simplfy compare_key() by moving key_comparision to key.cc (as this code can be reused from other places)
sql/handler.h:
Move key_range to my_base.h to be used by external table handlers
Simplify read_range() interface
New records_in_range() interface
sql/key.cc:
Rename key_cmp() to key_cmp_if_same() to make it more descriptive
Add new key_cmp() function usable from range and handler code.
sql/mysql_priv.h:
Prototypes for new functions
sql/opt_range.cc:
New records_in_range() interface
Simplify cmp_prev()
(We can in 5.0 simplify cmp_next() the same way)
sql/opt_range.h:
Added key_part_info to QUICK_SELECT to be able to use key_cmp() in get_next()
sql/opt_sum.cc:
key_cmp -> key_cmp_if_same
sql/sql_acl.cc:
key_cmp -> key_cmp_if_same
sql/sql_select.cc:
key_cmp -> key_cmp_if_same
sql/examples/ha_example.cc:
Documentation updates (lots of comments in the code).
sql/examples/ha_example.h:
Documenation update, lots of comments in the code.
acconfig.h:
Default undef for example storage engine.
acinclude.m4:
Build macro additions for example engine.
configure.in:
Configure changes for it to be listed in --help
sql/Makefile.am:
Added in paths to build example.
sql/examples/ha_example.cc:
Correction in indention and a few minor other corrections. It now lets you create/open/drop example engine.
sql/handler.cc:
Added definition for the example storage engine. Added case for it to be created.
sql/handler.h:
Added example storage engine type.
sql/mysql_priv.h:
Added flag for optional build of example storage engine.
sql/mysqld.cc:
Pieces to build example storage engine.
Fixed spelling of example share and fxed indention.
ha_example.cc:
Fixed spelling of example and removed a few unneeded printf pieces.
my_base.h:
Adde HA_ERR_NOT_IMPLEMENTED at Monty's request
include/my_base.h:
Adde HA_ERR_NOT_IMPLEMENTED at Monty's request
sql/examples/ha_example.cc:
Fixed spelling of example and removed a few unneeded printf pieces.
sql/examples/ha_example.h:
Fixed spelling of example share and fxed indention.
