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author | Alfranio Correia <alfranio.correia@sun.com> | 2009-11-03 19:02:56 +0000 |
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committer | Alfranio Correia <alfranio.correia@sun.com> | 2009-11-03 19:02:56 +0000 |
commit | 60d4662496c0831753085b172d70b39d98164892 (patch) | |
tree | 0e262b0d25432c224e2d4c8e1a1d608f78444771 /sql/handler.cc | |
parent | 9d59dfb5d274e917fc3539327dd707c2d5dcbb60 (diff) | |
download | mariadb-git-60d4662496c0831753085b172d70b39d98164892.tar.gz |
WL#2687 WL#5072 BUG#40278 BUG#47175
Non-transactional updates that take place inside a transaction present problems
for logging because they are visible to other clients before the transaction
is committed, and they are not rolled back even if the transaction is rolled
back. It is not always possible to log correctly in statement format when both
transactional and non-transactional tables are used in the same transaction.
In the current patch, we ensure that such scenario is completely safe under the
ROW and MIXED modes.
Diffstat (limited to 'sql/handler.cc')
-rw-r--r-- | sql/handler.cc | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/sql/handler.cc b/sql/handler.cc index e3d22fe1bec..abffdaf49d1 100644 --- a/sql/handler.cc +++ b/sql/handler.cc @@ -4537,7 +4537,21 @@ static int write_locked_table_maps(THD *thd) if (table->current_lock == F_WRLCK && check_table_binlog_row_based(thd, table)) { - int const has_trans= table->file->has_transactions(); + /* + We need to have a transactional behavior for SQLCOM_CREATE_TABLE + (e.g. CREATE TABLE... SELECT * FROM TABLE) in order to keep a + compatible behavior with the STMT based replication even when + the table is not transactional. In other words, if the operation + fails while executing the insert phase nothing is written to the + binlog. + + Note that at this point, we check the type of a set of tables to + create the table map events. In the function binlog_log_row(), + which calls the current function, we check the type of the table + of the current row. + */ + bool const has_trans= thd->lex->sql_command == SQLCOM_CREATE_TABLE || + table->file->has_transactions(); int const error= thd->binlog_write_table_map(table, has_trans); /* If an error occurs, it is the responsibility of the caller to @@ -4586,10 +4600,20 @@ static int binlog_log_row(TABLE* table, { bitmap_set_all(&cols); if (likely(!(error= write_locked_table_maps(thd)))) - error= (*log_func)(thd, table, table->file->has_transactions(), - &cols, table->s->fields, + { + /* + We need to have a transactional behavior for SQLCOM_CREATE_TABLE + (i.e. CREATE TABLE... SELECT * FROM TABLE) in order to keep a + compatible behavior with the STMT based replication even when + the table is not transactional. In other words, if the operation + fails while executing the insert phase nothing is written to the + binlog. + */ + bool const has_trans= thd->lex->sql_command == SQLCOM_CREATE_TABLE || + table->file->has_transactions(); + error= (*log_func)(thd, table, has_trans, &cols, table->s->fields, before_record, after_record); - + } if (!use_bitbuf) bitmap_free(&cols); } |