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MDEV-24576 Atomic CREATE TABLE

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There are a few different cases to consider

Logging of CREATE TABLE and CREATE TABLE ... LIKE
- If REPLACE is used and there was an existing table, DDL log the drop of
  the table.
- If discovery of table is to be done
    - DDL LOG create table
  else
    - DDL log create table (with engine type)
    - create the table
- If table was created
  - Log entry to binary log with xid
  - Mark DDL log completed

Crash recovery:
- If query was in binary log do nothing and exit
- If discoverted table
   - Delete the .frm file
-else
   - Drop created table and frm file
- If table was dropped, write a DROP TABLE statement in binary log

CREATE TABLE ... SELECT required a little more work as when one is using
statement logging the query is written to the binary log before commit is
done.
This was fixed by adding a DROP TABLE to the binary log during crash
recovery if the ddl log entry was not closed. In this case the binary log
will contain:
CREATE TABLE xxx ... SELECT ....
DROP TABLE xxx;

Other things:
- Added debug_crash_here() functionality to Aria to be able to test
  crash in create table between the creation of the .MAI and the .MAD files.
This commit is contained in:
Monty
2021-01-17 16:06:43 +02:00
committed by Sergei Golubchik
parent 7a588c30b1
commit 6aa9a552c2
28 changed files with 1239 additions and 314 deletions
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7
mysql-test/suite/multi_source/reset_slave.test
View File

@@ -39,9 +39,10 @@ stop slave 'master1';
--let $datadir = `SELECT @@datadir`
let read_master_log_pos=`select $binlog_start_pos + 599`;
let relay_log_pos=`select 2*$binlog_start_pos + 643`;
let relay_log_space=`select 3*$binlog_start_pos + 705`;
let read_master_log_pos=`select $binlog_start_pos + 608`;
let relay_log_pos=`select 2*$binlog_start_pos + 652`;
let relay_log_space=`select 3*$binlog_start_pos + 714`;
--replace_result $SERVER_MYPORT_1 MYPORT_1 $read_master_log_pos <read_master_log_pos> $relay_log_pos <relay_log_pos> $relay_log_space <relay_log_space>
show slave 'master1' status;
--list_files $datadir mysqld*