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c8c4500a98
The bug allow multiple executing transactions working with non-transactional to interfere with each others by interleaving the events of different trans- actions. Bug is fixed by writing non-transactional events to the transaction cache and flushing the cache to the binary log at statement commit. To mimic the behavior of normal statement-based replication, we flush the transaction cache in row- based mode when there is no committed statements in the transaction cache, which means we are committing the first one. This means that it will be written to the binary log as a "mini-transaction" with just the rows for the statement. Note that the changes here does not take effect when building the server with HAVE_TRANSACTIONS set to false, but it is not clear if this was possible before this patch either. For row-based logging, we also have that when AUTOCOMMIT=1, the code now always generates a BEGIN/COMMIT pair for single statements, or BEGIN/ROLLBACK pair in the case of non-transactional changes in a statement that was rolled back. Note that for the case where changes to a non-transactional table causes a rollback due to error, the statement will now be logged with a BEGIN/ROLLBACK pair, even though some changes has been committed to the non-transactional table.
33 lines
1 KiB
Text
33 lines
1 KiB
Text
stop slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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reset master;
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reset slave;
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drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
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start slave;
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create table t1 (a int);
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insert into t1 values (10);
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create table t2 (a int);
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create table t3 (a int) engine=merge union(t1);
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create table t4 (a int);
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insert into t4 select * from t3;
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rename table t1 to t5, t2 to t1;
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flush no_write_to_binlog tables;
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SHOW BINLOG EVENTS FROM 897 ;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query 1 # use `test`; rename table t1 to t5, t2 to t1
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select * from t3;
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a
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flush tables;
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SHOW BINLOG EVENTS FROM 897 ;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Query 1 # use `test`; rename table t1 to t5, t2 to t1
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master-bin.000001 # Query 1 # use `test`; flush tables
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select * from t3;
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a
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stop slave;
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drop table t1;
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flush tables with read lock;
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start slave;
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stop slave;
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ERROR HY000: Can't execute the given command because you have active locked tables or an active transaction
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drop table t3, t4, t5;
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