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Disable an assert that will be no longer valid when consistent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''
client/mysqltest.c:
Auto merged
mysql-test/mysql-test-run.sh:
Auto merged
mysql-test/t/ndb_autodiscover.test:
Auto merged
sql/ha_ndbcluster.h:
Auto merged
sql/item_strfunc.cc:
Auto merged
client/mysqldump.c:
Merge from 4.1 to 5.0
mysql-test/r/ndb_autodiscover.result:
Merge
ndb/test/ndbapi/create_tab.cpp:
Merge
sql/ha_ndbcluster.cc:
Merge
sql/handler.cc:
Merge
sql/handler.h:
Merge
sql/sql_base.cc:
Merge
sql/sql_table.cc:
Merge
Implement new SQL mode - NO_ENGINE_SUBSTITUTION
mysql-test/r/sql_mode.result:
Test for bug 6877
mysql-test/t/sql_mode.test:
Test for bug 6877
sql/handler.cc:
change to ha_checktype()
sql/handler.h:
change to ha_checktype()
sql/mysql_priv.h:
new sql mode NO_ENGINE_SUBSTITUTION
change to args for get_table_type() and create_frm()
sql/mysqld.cc:
new sql mode NO_ENGINE_SUBSTITUTION
sql/set_var.cc:
change to ha_checktype() args
sql/sql_delete.cc:
change to get_table_type() args
sql/sql_rename.cc:
change to get_table_type() args
sql/sql_table.cc:
move common code to check_engine()
change to ha_checktype(), get_table_type() args
sql/table.cc:
change to ha_checktype(), create_frm(), get_table_type() args
sql/unireg.cc:
change to create_frm() args
- Added better error messages when trying to open a table that can't be discovered or unpacked. The most likely cause of this is that it does not have any frm data, probably since it has been created from NdbApi or is a NDB system table.
- Separated functionality that was in ha_create_table_from_engine into two functions. One that checks if the table exists and another one that tries to create the table from the engine.
mysql-test/r/ndb_autodiscover.result:
Add tests for reading from a table that can't be discovered(SYSTAB_0)
Discovery is not performed during create table anymore.
mysql-test/t/ndb_autodiscover.test:
Add tests for reading from a table that can't be discovered(SYSTAB_0)
Discovery is not performed during create table anymore.
ndb/test/ndbapi/create_tab.cpp:
Set connectstring before creating Ndb object.
sql/ha_ndbcluster.cc:
Rename and use the function ndbcluster_table_exists_in_engine.
Correct return valu from ndbcluster_discover
Remove old code "ndb_discover_tables"
sql/ha_ndbcluster.h:
Rename function ndbcluster_table_exists to ndb ndbcluster_table_exists_in_engine
sql/handler.cc:
Update comment of ha_create_table_from_engine
Remove parameter create_if_found from ha_create_table_from_engine, the function ha_table_exists_in_engine is now used toi check if table is found in engine.
Cleanup return codes from ha_create_table_from_engine.
Change name of ha_table_exists to ha_table_exists_in_engine, update comment and returne codes.
sql/handler.h:
Remove paramter create_if_cound from ha_create_table_from_engine
Rename ha_table_exists to ha_table_exists_in_engine
sql/sql_base.cc:
Use the function ha_table_exists_in_engine to detect if table exists in enegine.
If it exists, call function ha_create_table_from_engine to try and create it.
If create of table fails, set correct error message.
sql/sql_table.cc:
Add comments, remove parameter create_if_found to ha_create_table_from_engine.
When dropping a table, try to discover it from engine. If discover fails, use same error message as if the table didn't exists.
Maybe another message should be displayed here, ex: "Table could not be dropped, unpack failed"
When creating a new table, use ha_table_exists_in_engine to check if a table with the given name already exists.
mysql-test/r/grant_cache.result:
Auto merged
mysql-test/r/merge.result:
Auto merged
mysql-test/t/grant_cache.test:
Auto merged
mysql-test/t/merge.test:
Auto merged
sql/ha_myisammrg.h:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/handler.h:
Resolve merge
sql/table.cc:
Resolve merge
After review version.
Added a condition for MERGE tables. These do not have unique
indexes. But every key could be a unique key on the underlying
MyISAM table. So get the maximum key length for MERGE tables
instead of the maximum unique key length. This is used for
buffer allocation in write_record().
mysql-test/r/merge.result:
Bug#10400 - Improperly-defined MERGE table crashes with INSERT ... ON DUPLICATE KEY UPDATE
The test result.
mysql-test/t/merge.test:
Bug#10400 - Improperly-defined MERGE table crashes with INSERT ... ON DUPLICATE KEY UPDATE
The test case does not in all cases show the problem
without the bugfix. The improper memory allocation
might get through undetected in many cases.
sql/ha_myisammrg.h:
Bug#10400 - Improperly-defined MERGE table crashes with INSERT ... ON DUPLICATE KEY UPDATE
Set a table_flag for the MERGE engine telling that any index
might be unique without being specified as such.
sql/handler.h:
Bug#10400 - Improperly-defined MERGE table crashes with INSERT ... ON DUPLICATE KEY UPDATE
Added a new table_flag telling that any index
might be unique without being specified as such.
sql/sql_insert.cc:
Bug#10400 - Improperly-defined MERGE table crashes with INSERT ... ON DUPLICATE KEY UPDATE
Changed the freeing of the memory to be symmetric to its
allocation (my_safe_alloc -> my_safe_afree).
This is not directly related to the bug.
sql/table.cc:
Bug#10400 - Improperly-defined MERGE table crashes with INSERT ... ON DUPLICATE KEY UPDATE
Added a condition for MERGE tables. These do not have unique
indexes. But every key could be a unique key on the underlying
MyISAM table. So get the maximum key length for MERGE tables
instead of the maximum unique key length. This is used for
buffer allocation in write_record().
This makes it easier to give an error in the handler if there was a problem generating an auto-increment value
mysys/thr_alarm.c:
Remove warning from valgrind
sql/item_strfunc.cc:
Fixed indentation
tests/mysql_client_test.c:
Removed compiler warning
BitKeeper/etc/logging_ok:
auto-union
BitKeeper/deleted/.del-errmsg.txt~11edc4db89248c16:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~184eb1f09242dc72:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~2cdeb8d6f80eba72:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~4617575065d612b9:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~587903f9311db2d1:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~606dfaeb9e81aa4e:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~6bbd9eac7f0e6b89:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~7397c423c52c6d2c:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~898865062c970766:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~8ed1999cbd481dc4:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~94a93cc742fca24d:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~9dab24f7fb11b1e1:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~b44a85a177954da0:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~b6181e29d8282b06:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~ba132dc9bc936c8a:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~e2609fdf7870795:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~e3183b99fbba0a9c:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~eeb2c47537ed9c23:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~ef28b592c7591b7:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~ef53c33ac0ff8a84:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~f19bfd5d4c918964:
Auto merged
BitKeeper/deleted/.del-errmsg.txt~f96b7055cac394e:
Auto merged
libmysql/libmysql.c:
Auto merged
myisam/mi_key.c:
Auto merged
mysql-test/r/alter_table.result:
Auto merged
mysql-test/r/auto_increment.result:
Auto merged
mysql-test/r/innodb.result:
Auto merged
mysql-test/r/select.result:
Auto merged
mysql-test/t/alter_table.test:
Auto merged
mysql-test/t/innodb.test:
Auto merged
mysql-test/t/select.test:
Auto merged
sql/handler.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/sql_yacc.yy:
Auto merged
mysql-test/r/insert_update.result:
Auto merged
strings/ctype-ucs2.c:
Auto merged
sql/sql_table.cc:
merge
sql/unireg.cc:
merge
Count null_bits separately from field offsets and adjust them in case of primary key parts.
(Previously a CREATE TABLE with a lot of null fields that was part of a primary key caused MySQL to wrongly count the number of bytes needed to store null bits)
This is a more complete bug fix for #6236
mysql-test/r/alter_table.result:
More test for bug #6236 (CREATE TABLE didn't properly count not null columns for primary keys)
mysql-test/t/alter_table.test:
More test for bug #6236 (CREATE TABLE didn't properly count not null columns for primary keys)
sql/handler.h:
Add counter for null fields
sql/sql_table.cc:
Change create_field->offset to store offset from start of fields, independent of null bits.
Count null_bits separately from field offsets and adjust them in case of primary key parts.
sql/unireg.cc:
Change create_field->offset to store offset from start of fields, independent of null bits.
Count null_bits separately from field offsets and adjust them in case of primary key parts.
into neptunus.(none):/home/msvensson/mysql/mysql-5.0
include/my_global.h:
Auto merged
sql/field.h:
Auto merged
sql/ha_berkeley.h:
Auto merged
sql/ha_heap.h:
Auto merged
sql/ha_innodb.h:
Auto merged
sql/ha_myisam.h:
Auto merged
sql/ha_myisammrg.h:
Auto merged
sql/ha_ndbcluster.h:
Auto merged
sql/handler.h:
Auto merged
sql/item.h:
Auto merged
sql/item_cmpfunc.h:
Auto merged
sql/item_func.h:
Auto merged
sql/item_geofunc.h:
Auto merged
sql/item_strfunc.h:
Auto merged
sql/item_subselect.h:
Auto merged
sql/item_sum.h:
Auto merged
BitKeeper/deleted/.del-ha_isam.h~bf53d533be3d3927:
Auto merged
BitKeeper/deleted/.del-ha_isammrg.h~66fd2e5bfe7207dc:
Auto merged
sql/examples/ha_archive.h:
Auto merged
sql/item_timefunc.h:
Auto merged
sql/opt_range.h:
Auto merged
sql/procedure.h:
Auto merged
sql/protocol.h:
Auto merged
sql/set_var.h:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_list.h:
Auto merged
sql/sql_select.h:
Auto merged
sql/sql_string.h:
Auto merged
sql/sql_udf.h:
Auto merged
sql/tztime.h:
Auto merged
- Introduce ifdefs so we can control when to use #pragma interface on cygwin
include/my_global.h:
Turn on use of #pragma implementation and #pragma interface if compiled with GCC and platform != Cygwin
include/raid.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/examples/ha_archive.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/examples/ha_example.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/field.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/ha_berkeley.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/ha_blackhole.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/ha_heap.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/ha_innodb.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/ha_isam.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/ha_isammrg.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/ha_myisam.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/ha_myisammrg.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/ha_ndbcluster.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/handler.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/item.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/item_cmpfunc.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/item_func.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/item_geofunc.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/item_strfunc.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/item_subselect.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/item_sum.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/item_timefunc.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/opt_range.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/procedure.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/protocol.h:
replace __GNUC__ with USE_PRAGMA_IMPLEMENTATION
sql/set_var.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/sql_class.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/sql_list.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/sql_select.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/sql_string.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/sql_udf.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
sql/tztime.h:
replace __GNUC__ with USE_PRAGMA_INTERFACE
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/ha_innodb.cc:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/handler.cc:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/mysqld.cc:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/set_var.cc:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/sql_repl.cc:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/ha_innodb.h:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
sql/handler.h:
Semi-synchronous replication for InnoDB type tables; before telling the client that a commit has been processed, wait that the replication thread has returned from my_net_send() where it sends the binlog to the slave; note that TCP/IP, even with the TCP_NODELAY option does not guarantee that the slave has RECEIVED the data - this is just heuristic at the moment; this is useful in failover: in almost all cases, every transaction that has returned from the commit has been sent and processed in the slave, which makes failover to the slave simpler if the master crashes; the code does not work yet as is, because MySQL should call innobase_report_binlog_offset_and_commit() in a commit; we will most probably return that call to 5.0.x, to make InnoDB Hot Backup and group commit to work again; XA code broke them temporarily in 5.0.3
scripts/mysql_create_system_tables.sh:
Auto merged
scripts/mysql_fix_privilege_tables.sql:
Auto merged
sql/set_var.cc:
Auto merged
support-files/mysql.server.sh:
Auto merged
sql/ha_ndbcluster.cc:
Merge
sql/handler.cc:
Merge
sql/handler.h:
Merge
sql/mysqld.cc:
Merge
refuse to start up if it is not. (Bug #9815)
sql/handler.cc:
Add ha_storage_engine_is_enabled function.
sql/handler.h:
Declare ha_storage_engine_is_enabled()
sql/mysqld.cc:
Abort startup if the specified default storage engine is
not available.
mysql-test/r/ctype_collate.result:
Auto merged
mysql-test/r/union.result:
Auto merged
mysql-test/t/union.test:
Auto merged
sql/handler.h:
Auto merged
sql/item.cc:
Auto merged
sql/sql_table.cc:
Auto merged
Fixed warnings by valgrind for sum_distinct.test
Enable buffered-record-reads after filesort for InnoDB tables with short primary key
Enabled sort-with-data for MyISAM temporary files
BitKeeper/etc/ignore:
added tools/mysqltestmanager
client/mysqltest.c:
Ensure that BIG_TEST is always set to 0 or 1
Fix the 'eval' also honors 'require'
mysql-test/mysql-test-run.sh:
Enlarge InnoDB table space for --big tests
mysql-test/r/heap.result:
Fix after adding more optimzation for filsort
mysql-test/r/sum_distinct.result:
Move 'slow' part of test to sum_distinct-big.test
mysql-test/t/heap.test:
Ensure that results are indpendent of optimizer
mysql-test/t/sum_distinct.test:
Move 'slow' part of test to sum_distinct-big.test
sql/filesort.cc:
Use 'sort with data' also on temporary files and with INSERT ... SELECT
sql/ha_innodb.h:
Remove HA_FAST_KEY_READ to enable buffered-record-reads after filesort
sql/handler.h:
More comments
sql/mysql_priv.h:
A bit smaller limit for cache for buffered-records-read (after testing)
sql/records.cc:
Don't use buffered-record-reads if ref_length > MAX_REFLENGTH
Fixed warning from valgrind in 'sum_distinct'
sql/sql_select.cc:
Ensure that tempory tables has query_id set for all fields
(Required for sort-with-data to work on temp files)
if there are foreign key constraints on the table. (Bug #5574)
sql/ha_innodb.cc:
Add method can_switch_engines()
sql/ha_innodb.h:
Add method can_switch_engines()
sql/handler.h:
Add method can_switch_engines()
sql/sql_table.cc:
Check handler::can_switch_engines() before switching storage engines
mysql-test/r/ps_1general.result:
Fix test case.
sql/handler.h:
Added federated to the list so that any beta users won't end up with a mismatch for table enum
configure.in:
Auto merged
BitKeeper/deleted/.del-acinclude.m4~f4ab416bac5003:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/Makefile.am:
Edited for adding blackhole.
sql/handler.cc:
Edited for adding blackhole.
sql/handler.h:
Edited for blackhole.
acinclude.m4:
New macro rule for ha_blackhole.
configure.in:
Rule enabling blackhole engine
sql/Makefile.am:
Additions to Makefile for blackhole engine
sql/handler.cc:
Ifdef enable code for blackhole (and message for "what does this thing do").
sql/handler.h:
Flag for storage engine type.
sql/mysql_priv.h:
Added blackhole type.
sql/mysqld.cc:
Updates for building backhole.
sql/set_var.cc:
Show variable for blackhole engine
Windows to call CreateFileMapping() with correct arguments, and
propogating the introduction of query_id_t to everywhere query ids are
passed around. (Bug #8826)
libmysql/libmysql.c:
Make implicit cast explicit
myisam/mi_open.c:
Make cast of value to smaller data size explicit
myisam/mi_packrec.c:
Cast file size (my_off_t) to size_t for mmap
mysys/my_mmap.c:
Fix Windows version of my_mmap() to use the right parameters
for call to CreateFileMapping()
sql/field.cc:
Use temporary value of correct type
sql/field.h:
Use query_id_t for query_id value
sql/ha_berkeley.cc:
Fix flag check
sql/ha_innodb.h:
Use query_id_t for query_id value
sql/handler.cc:
Explain opt_using_transactions calculation, and add cast
sql/handler.h:
Fix forward declaration of COND
sql/item.cc:
Fix val_bool() tests of val_int() to avoid implicit cast
sql/item_cmpfunc.cc:
Fix typo in switch label
sql/item_func.cc:
Make implicit cast explicit
sql/item_strfunc.cc:
Now that query_id is a query_id_t, need to cast it to a ulong here
sql/item_subselect.cc:
Fix test of value
sql/log.cc:
Cast my_off_t used for file size to size_t for memory allocation
Also cast my_off_t when using it to calculate the number of pages for TC log
Cast total_ha_2pc to uchar when saving it
sql/mysql_priv.h:
Move up query_id definition so it can be used more widely
sql/opt_range.cc:
Add unused delete operator to prevent compiler warning
sql/set_var.cc:
Cast value for max_user_connections
sql/sql_cache.cc:
Remove unused label
sql/sql_class.h:
Fix query id values to be of type query_id_t
sql/sql_db.cc:
Move variable only used inside #ifdef within the #ifdef
sql/sql_help.cc:
Remove unused label
sql/sql_insert.cc:
Use query_id_t for query id values
sql/sql_lex.h:
Add unused delete operator to prevent compiler warning
sql/sql_select.cc:
Remove unused variable
Make cast of value explicit
sql/sql_select.h:
Use query_id_t for query id values
sql/sql_table.cc:
Make comparison to function pointer explicit
sql/sql_update.cc:
Use query_id_t for query id values
sql/table.h:
Use query_id_t for query id values
strings/ctype-simple.c:
Add cast of long value to (char) in expression
strings/ctype-ucs2.c:
Add cast of long value to (char) in expression
strings/ctype-utf8.c:
Make cast to smaller size explicit
BitKeeper/etc/logging_ok:
auto-union
include/mysql_com.h:
Auto merged
ndb/src/mgmsrv/MgmtSrvr.cpp:
Auto merged
sql/handler.h:
Auto merged
sql/item.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/log.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_parse.cc:
Auto merged
sql/sql_select.cc:
Auto merged
correct end_log_pos for Xid_log_event
mysql-test/r/binlog.result:
don't depend on the previous tests
mysql-test/r/rpl_rotate_logs.result:
correct end_log_pos for Xid_log_event
mysql-test/t/binlog.test:
don't depend on the previous tests
sql/handler.h:
comment
sql/log_event.cc:
advance position for Xid
sql/log_event.h:
comment
sql/sql_class.h:
correct end_log_pos for Xid_log_event
sql/sql_parse.cc:
make sure commit handler knows whether it's autocommit or not
into mysql.com:/usr/local/home/marty/MySQL/test/mysql-5.0-ndb
sql/ha_ndbcluster.cc:
Auto merged
sql/handler.h:
Auto merged
sql/item.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_select.cc:
Auto merged
mysql-test/r/ndb_condition_pushdown.result:
Added more tests for condition pushdown to storage engine based on comments from code review
mysql-test/t/ndb_condition_pushdown.test:
Added more tests for condition pushdown to storage engine based on comments from code review
include/my_sys.h:
sol9x86, sunfire100b, qnx compatibility
mysql-test/t/rpl_rotate_logs.test:
fix the test
sql/ha_innodb.cc:
don't bother
sql/handler.cc:
few more ways to crash mysqld :)
sql/handler.h:
gdb/safemalloc workaround
sql/log.cc:
rotate a binlog on heuristic recover
sql/mysqld.cc:
rotate a binlog on heuristic recover
mysql-test/r/myisam.result:
Test of DROP TABLE when .MYI or .MYD is missing
mysql-test/r/ndb_autodiscover.result:
Update test results
mysql-test/r/rpl_EE_error.result:
Change test to conform with new handling of drop table when handler file is missing
mysql-test/t/myisam.test:
Test of DROP TABLE when .MYI or .MYD is missing
mysql-test/t/rpl_EE_error.test:
Change test to conform with new handling of drop table when handler file is missing
sql/handler.cc:
Generate a warning in ha_delete_table() if we get an error from 'delete_table()'
sql/handler.h:
More parameters to ha_delete_table() so that we can generate better error messages
sql/sql_table.cc:
Generate warning in ha_delete_table()
sql/ha_ndbcluster.h:
Auto merged
sql/item.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_func.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_select.cc:
Auto merged
Portability fixes and cleanups
Fixed setting of 'res' in mysql_execute_command()
sql/handler.cc:
delete_table() will not return error for not found files if one handler file was found and deleted
sql/handler.h:
Incremented MAX_HA so that ndb works again
Don't convert char pointer to (my_xid*) as we don't know if the address is aligned on 8
sql/log.cc:
Indentation fixes
Simplified loop to find next log
Fixed race condition in reset_logs that caused mix_innodb_myisam_binlog to fail
sql/log_event.cc:
Don't convert char pointer to (my_xid*) as we don't know if the address is aligned on 8
sql/sql_acl.cc:
Convert db name directly to avoid extra strmov
sql/sql_base.cc:
Added comment
Removed not needed code
sql/sql_db.cc:
Added comment
Remove not needed code
sql/sql_parse.cc:
Always call mysql_rm_db() with lower case db name
Ensure that 'res' is set correctly in mysql_execute_command()
(One don't have to set res if one calls my_error() and res should be = 0 for correct commands)
sql/sql_repl.cc:
Indentation fixes
use packet->ptr() instead of packet->c_ptr()
sql/sql_table.cc:
Join similar code when table didn't exist in engine
client/mysqlbinlog.cc:
Auto merged
configure.in:
Auto merged
include/my_global.h:
Auto merged
include/my_pthread.h:
Auto merged
innobase/trx/trx0trx.c:
Auto merged
mysql-test/include/varchar.inc:
Auto merged
mysql-test/r/bdb.result:
Auto merged
mysql-test/r/myisam.result:
Auto merged
mysql-test/r/mysqlbinlog2.result:
Auto merged
mysql-test/t/ctype_ucs.test:
Auto merged
mysql-test/t/user_var.test:
Auto merged
mysys/hash.c:
Auto merged
sql/item_func.cc:
Auto merged
sql/log_event.cc:
Auto merged
sql/log_event.h:
Auto merged
sql/set_var.h:
Auto merged
sql/slave.cc:
Auto merged
sql/slave.h:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sql_base.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_repl.cc:
Auto merged
sql/sql_repl.h:
Auto merged
sql/sql_table.cc:
Auto merged
sql/sql_trigger.cc:
Auto merged
mysql-test/r/ctype_ucs.result:
ul
mysql-test/r/drop_temp_table.result:
ul
mysql-test/r/innodb.result:
ul
mysql-test/r/insert_select.result:
ul
mysql-test/r/mix_innodb_myisam_binlog.result:
ul
mysql-test/r/rpl_change_master.result:
ul
mysql-test/r/rpl_charset.result:
ul
mysql-test/r/rpl_error_ignored_table.result:
ul
mysql-test/r/rpl_flush_log_loop.result:
ul
mysql-test/r/rpl_flush_tables.result:
ul
mysql-test/r/rpl_loaddata.result:
ul
mysql-test/r/rpl_loaddata_rule_m.result:
ul
mysql-test/r/rpl_log.result:
ul
mysql-test/r/rpl_max_relay_size.result:
ul
mysql-test/r/rpl_relayrotate.result:
ul
mysql-test/r/rpl_replicate_do.result:
ul
mysql-test/r/rpl_rotate_logs.result:
ul
mysql-test/r/rpl_temporary.result:
ul
mysql-test/r/rpl_timezone.result:
ul
mysql-test/r/rpl_until.result:
ul
mysql-test/r/rpl_user_variables.result:
ul
mysql-test/r/user_var.result:
ul
Row_format=Redundant
sql/ha_innodb.cc:
Implement get_row_type()
sql/ha_innodb.h:
Declare get_row_type()
sql/handler.h:
Declare get_row_type()
sql/sql_show.cc:
get_schema_tables_record(): Primarily invoke handler::get_row_type()
in order to determine the row type within the storage engine.
Secondarily use the old method of examining the HA_OPTION flags.
client/mysqlcheck.c:
Auto merged
myisam/ft_boolean_search.c:
Auto merged
myisam/ft_static.c:
Auto merged
mysql-test/r/func_group.result:
Auto merged
mysql-test/r/union.result:
Auto merged
mysql-test/t/func_group.test:
Auto merged
mysql-test/t/multi_update.test:
Auto merged
mysql-test/t/union.test:
Auto merged
scripts/make_binary_distribution.sh:
Auto merged
sql/ha_myisam.h:
Auto merged
sql/handler.h:
Auto merged
sql/item.cc:
Auto merged
sql/item.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/sql_union.cc:
Auto merged
sql/field.cc:
Clean up merge
ftbw->off wasn't cleared on reinit - Bug#8234
include/ft_global.h:
get rid of default_charset_info in indexless fulltext searches
myisam/ft_boolean_search.c:
get rid of default_charset_info in indexless fulltext searches
clear ftbw->off on reinits
myisam/ft_static.c:
get rid of default_charset_info in indexless fulltext searches
myisam/ftdefs.h:
get rid of default_charset_info in indexless fulltext searches
sql/ha_myisam.h:
get rid of default_charset_info in indexless fulltext searches
sql/handler.h:
get rid of default_charset_info in indexless fulltext searches
sql/item_func.cc:
get rid of default_charset_info in indexless fulltext searches
mysql-test/r/ndb_cache.result:
Added 'order by' to select's
mysql-test/r/ndb_cache2.result:
Added 'order by' to select's
mysql-test/t/ndb_cache.test:
Added 'order by' to select's
mysql-test/t/ndb_cache2.test:
Added 'order by' to select's
sql/ha_innodb.h:
Changed function name
sql/ha_ndbcluster.cc:
Merge from query cache from 4.1 to 5.0
Added better comments
ndb_get_table_statistics had changed, so there where some adaptions to make
sql/ha_ndbcluster.h:
Changed name of function
sql/handler.h:
Changed name of function
sql/sql_cache.cc:
Changed name of function
BitKeeper/etc/logging_ok:
auto-union
sql/ha_innodb.cc:
Auto merged
sql/ha_ndbcluster.h:
Auto merged
sql/handler.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_cache.h:
Auto merged
sql/sql_class.h:
Auto merged
sql/ha_innodb.h:
Hand merged
sql/ha_ndbcluster.cc:
Merge with gathering of stats
sql/sql_cache.cc:
Use new table def cache
sql/table.h:
table.h had been cleaned up
fix for binlog+autocommit+tclog
comments, style fixes
libmysqld/libmysqld.rc:
Change mode to -rw-rw-r--
libmysqld/resource.h:
Change mode to -rw-rw-r--
configure.in:
check for getpagesize
include/my_global.h:
typo ?
include/my_pthread.h:
bug in thread_safe_decrement_and_test()
mysql-test/r/bdb.result:
results updated
mysql-test/r/innodb.result:
results updated
mysql-test/r/mix_innodb_myisam_binlog.result:
results updated
mysql-test/r/rpl_relayrotate.result:
results updated
sql/ha_berkeley.cc:
style fixes
sql/ha_innodb.cc:
fixes to follow innodb coding style
sql/handler.cc:
more comments. XA COMMIT ONE PHASE fix.
sql/handler.h:
my_xid -> ulonglong. comments
sql/item_func.cc:
DO RELEASE_LOCK("...") is no cache_stmt
sql/log.cc:
comments, better error messages
sql/log_event.cc:
even in autocommit mode we may need to cache_stmt
xid is ulonglong
sql/log_event.h:
more comments.
sql/mysql_priv.h:
query_id is ulonglong
sql/mysqld.cc:
default value for --log-tc changed
sql/share/errmsg.txt:
better error messages
sql/sql_class.h:
cleanup, comments
sql/sql_delete.cc:
deleting from temporary tables is not always transactional
sql/sql_insert.cc:
insert into temporary table is not always transactional
sql/sql_load.cc:
load data into temp table is not always transactional
sql/sql_parse.cc:
comments. bad merge fixed. xa_state_names[]
sql/sql_table.cc:
create/drop temp table is not always transactional
sql/sql_update.cc:
update temp table is not always transactional
include/my_pthread.h:
cleanup. don't use gcc extensions
innobase/include/trx0sys.ic:
Jan's fix for innobase_xa_prepare
innobase/read/read0read.c:
Jan's fix for innobase_xa_prepare
innobase/trx/trx0trx.c:
Jan's fix for innobase_xa_prepare
mysql-test/include/varchar.inc:
test fix
mysql-test/r/ctype_ucs.result:
new log event - all binlog positions are changed :(
mysql-test/r/drop_temp_table.result:
new log event - all binlog positions are changed :(
mysql-test/r/insert_select.result:
new log event - all binlog positions are changed :(
mysql-test/r/mix_innodb_myisam_binlog.result:
new log event - all binlog positions are changed :(
mysql-test/r/myisam.result:
test fix
mysql-test/r/rpl000015.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_change_master.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_charset.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_error_ignored_table.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_flush_log_loop.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_flush_tables.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_loaddata.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_loaddata_rule_m.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_loaddata_rule_s.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_log.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_log_pos.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_max_relay_size.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_relayrotate.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_replicate_do.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_reset_slave.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_rotate_logs.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_server_id1.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_server_id2.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_temporary.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_timezone.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_until.result:
new log event - all binlog positions are changed :(
mysql-test/r/rpl_user_variables.result:
new log event - all binlog positions are changed :(
mysql-test/r/user_var.result:
new log event - all binlog positions are changed :(
mysql-test/t/ctype_ucs.test:
new log event - all binlog positions are changed :(
mysql-test/t/mix_innodb_myisam_binlog.test:
new log event - all binlog positions are changed :(
mysql-test/t/mysqlbinlog.test:
new log event - all binlog positions are changed :(
mysql-test/t/mysqlbinlog2.test:
new log event - all binlog positions are changed :(
mysql-test/t/rpl_charset.test:
new log event - all binlog positions are changed :(
mysql-test/t/rpl_error_ignored_table.test:
new log event - all binlog positions are changed :(
mysql-test/t/rpl_loaddata_rule_m.test:
new log event - all binlog positions are changed :(
mysql-test/t/rpl_loaddata_rule_s.test:
new log event - all binlog positions are changed :(
mysql-test/t/rpl_log.test:
new log event - all binlog positions are changed :(
mysql-test/t/rpl_log_pos.test:
new log event - all binlog positions are changed :(
mysql-test/t/rpl_user_variables.test:
new log event - all binlog positions are changed :(
mysql-test/t/user_var.test:
new log event - all binlog positions are changed :(
mysys/hash.c:
typo fixed
sql/ha_berkeley.cc:
handlerton framework
sql/ha_berkeley.h:
handlerton framework
sql/ha_innodb.cc:
handlerton framework
sql/ha_innodb.h:
handlerton framework
sql/handler.cc:
new transaction handling, handlerton framework, two-phase commit, XA support
sql/handler.h:
new transaction handling, handlerton framework, two-phase commit, XA support
sql/lex.h:
XA commands
sql/log.cc:
new transaction handling, handlerton framework, two-phase commit,
XA support, tc-logging, TC_LOG_MMAP class
sql/log_event.cc:
Xid_log_event
sql/log_event.h:
Xid_log_event, LOG_EVENT_BINLOG_CLOSED_F flag
sql/mysql_priv.h:
wrapper for query_id++
sql/mysqld.cc:
new command-line options --log-tc, --log-tc-size, --tc-heuristic-recover,
new status variables Tc_log_page_size, Tc_log_max_pages_used, Tc_log_page_waits.
init/stop tc logging
sql/set_var.h:
warning fixed
sql/share/errmsg.txt:
XA error messages
sql/sp_head.cc:
s/query_id++/next_query_id()/
sql/sql_base.cc:
typo fixed. new transaction handling.
sql/sql_class.cc:
cleanup of THD.transaction
sql/sql_class.h:
TC_LOG classes, new status variables, new savepoint handling, XA support
sql/sql_insert.cc:
comments
sql/sql_lex.cc:
s/found_colon/found_semicolon/
sql/sql_lex.h:
SQLCOM_XA_xxx, XA related changes in Lex
sql/sql_parse.cc:
cleanup, XA commands, new savepoint handling
sql/sql_repl.cc:
two functions moved to log.cc
sql/sql_repl.h:
two functions moved to log.cc
sql/sql_trigger.cc:
s/lex.name_and_length/lex.ident/
sql/sql_yacc.yy:
XA commands, cleanup
Added the required structures and functions for
handing over multiple key ranges to the table handler.
include/my_base.h:
WL#2126 - Multi_read_range.
Moved key range flags from sql/opt_range.h to here.
Added the multi-range structure.
sql/handler.cc:
WL#2126 - Multi_read_range.
Added the new table handler methods.
sql/handler.h:
WL#2126 - Multi_read_range.
Added a new table flag.
Added a declaration for the handler buffer.
Added new elements to class handler.
Added new function declarations.
sql/mysqld.cc:
WL#2126 - Multi_read_range.
Added an option to set new system variable 'multi_range_count'.
sql/opt_range.cc:
WL#2126 - Multi_read_range.
Added initialization for the new class members.
Added initialization for the extended get_next().
Added de-initialization for the allocated buffers.
Added a buffer allocation method.
Added an inner loop to collect multiple ranges.
Adapted range collection loops to the new initialization.
sql/opt_range.h:
WL#2126 - Multi_read_range.
Moved key range flags from here to include/my_base.h.
Added new elements to class QUICK_RANGE_SELECT.
Added a copy constructor.
sql/records.cc:
WL#2126 - Multi_read_range.
Added a call of the allocation method.
sql/set_var.cc:
WL#2126 - Multi_read_range.
Added the new system variable 'multi_range_count'.
sql/sql_class.h:
WL#2126 - Multi_read_range.
Added the new system variable 'multi_range_count'.
