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4102f1589c
MDEV-22531 Remove maria::implicit_commit()
MDEV-22607 Assertion `ha_info->ht() != binlog_hton' failed in
MYSQL_BIN_LOG::unlog_xa_prepare
From the handler point of view, Aria now looks like a transactional
engine. One effect of this is that we don't need to call
maria::implicit_commit() anymore.
This change also forces the server to call trans_commit_stmt() after doing
any read or writes to system tables. This work will also make it easier
to later allow users to have system tables in other engines than Aria.
To handle the case that Aria doesn't support rollback, a new
handlerton flag, HTON_NO_ROLLBACK, was added to engines that has
transactions without rollback (for the moment only binlog and Aria).
Other things
- Moved freeing of MARIA_SHARE to a separate function as the MARIA_SHARE
can be still part of a transaction even if the table has closed.
- Changed Aria checkpoint to use the new MARIA_SHARE free function. This
fixes a possible memory leak when using S3 tables
- Changed testing of binlog_hton to instead test for HTON_NO_ROLLBACK
- Removed checking of has_transaction_manager() in handler.cc as we can
assume that as the transaction was started by the engine, it does
support transactions.
- Added new class 'start_new_trans' that can be used to start indepdendent
sub transactions, for example while reading mysql.proc, using help or
status tables etc.
- open_system_tables...() and open_proc_table_for_Read() doesn't anymore
take a Open_tables_backup list. This is now handled by 'start_new_trans'.
- Split thd::has_transactions() to thd::has_transactions() and
thd::has_transactions_and_rollback()
- Added handlerton code to free cached transactions objects.
Needed by InnoDB.
squash! 2ed35999f2a2d84f1c786a21ade5db716b6f1bbc
36 lines
1.2 KiB
Plaintext
36 lines
1.2 KiB
Plaintext
set global default_storage_engine=aria;
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set session default_storage_engine=aria;
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drop table if exists t1;
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SET SQL_WARNINGS=1;
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RESET MASTER;
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set binlog_format=statement;
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CREATE TABLE t1 (a int primary key);
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insert t1 values (1),(2),(3);
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insert t1 values (4),(2),(5);
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ERROR 23000: Duplicate entry '2' for key 'PRIMARY'
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show warnings;
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Level Code Message
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Error 1062 Duplicate entry '2' for key 'PRIMARY'
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Note 4173 Engine Aria does not support rollback. Changes where commited during rollback call
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Warning 1196 Some non-transactional changed tables couldn't be rolled back
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select * from t1;
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a
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1
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2
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3
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4
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SHOW BINLOG EVENTS FROM <start_pos>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Gtid_list 1 # []
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master-bin.000001 # Binlog_checkpoint 1 # master-bin.000001
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master-bin.000001 # Gtid 1 # GTID 0-1-1
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master-bin.000001 # Query 1 # use `test`; CREATE TABLE t1 (a int primary key)
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master-bin.000001 # Gtid 1 # BEGIN GTID 0-1-2
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master-bin.000001 # Query 1 # use `test`; insert t1 values (1),(2),(3)
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master-bin.000001 # Query 1 # COMMIT
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master-bin.000001 # Gtid 1 # BEGIN GTID 0-1-3
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master-bin.000001 # Query 1 # use `test`; insert t1 values (4),(2),(5)
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master-bin.000001 # Query 1 # COMMIT
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drop table t1;
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set binlog_format=default;
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