mirror of
https://github.com/MariaDB/server.git
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1bd681c8b3
This is a complete rewrite of DROP TABLE, also as part of other DDL, such as ALTER TABLE, CREATE TABLE...SELECT, TRUNCATE TABLE. The background DROP TABLE queue hack is removed. If a transaction needs to drop and create a table by the same name (like TRUNCATE TABLE does), it must first rename the table to an internal #sql-ib name. No committed version of the data dictionary will include any #sql-ib tables, because whenever a transaction renames a table to a #sql-ib name, it will also drop that table. Either the rename will be rolled back, or the drop will be committed. Data files will be unlinked after the transaction has been committed and a FILE_RENAME record has been durably written. The file will actually be deleted when the detached file handle returned by fil_delete_tablespace() will be closed, after the latches have been released. It is possible that a purge of the delete of the SYS_INDEXES record for the clustered index will execute fil_delete_tablespace() concurrently with the DDL transaction. In that case, the thread that arrives later will wait for the other thread to finish. HTON_TRUNCATE_REQUIRES_EXCLUSIVE_USE: A new handler flag. ha_innobase::truncate() now requires that all other references to the table be released in advance. This was implemented by Monty. ha_innobase::delete_table(): If CREATE TABLE..SELECT is detected, we will "hijack" the current transaction, drop the table in the current transaction and commit the current transaction. This essentially fixes MDEV-21602. There is a FIXME comment about making the check less failure-prone. ha_innobase::truncate(), ha_innobase::delete_table(): Implement a fast path for temporary tables. We will no longer allow temporary tables to use the adaptive hash index. dict_table_t::mdl_name: The original table name for the purpose of acquiring MDL in purge, to prevent a race condition between a DDL transaction that is dropping a table, and purge processing undo log records of DML that had executed before the DDL operation. For #sql-backup- tables during ALTER TABLE...ALGORITHM=COPY, the dict_table_t::mdl_name will differ from dict_table_t::name. dict_table_t::parse_name(): Use mdl_name instead of name. dict_table_rename_in_cache(): Update mdl_name. For the internal FTS_ tables of FULLTEXT INDEX, purge would acquire MDL on the FTS_ table name, but not on the main table, and therefore it would be able to run concurrently with a DDL transaction that is dropping the table. Previously, the DROP TABLE queue hack prevented a race between purge and DDL. For now, we introduce purge_sys.stop_FTS() to prevent purge from opening any table, while a DDL transaction that may drop FTS_ tables is in progress. The function fts_lock_table(), which will be invoked before the dictionary is locked, will wait for purge to release any table handles. trx_t::drop_table_statistics(): Drop statistics for the table. This replaces dict_stats_drop_index(). We will drop or rename persistent statistics atomically as part of DDL transactions. On lock conflict for dropping statistics, we will fail instantly with DB_LOCK_WAIT_TIMEOUT, because we will be holding the exclusive data dictionary latch. trx_t::commit_cleanup(): Separated from trx_t::commit_in_memory(). Relax an assertion around fts_commit() and allow DB_LOCK_WAIT_TIMEOUT in addition to DB_DUPLICATE_KEY. The call to fts_commit() is entirely misplaced here and may obviously break the consistency of transactions that affect FULLTEXT INDEX. It needs to be fixed separately. dict_table_t::n_foreign_key_checks_running: Remove (MDEV-21175). The counter was a work-around for missing meta-data locking (MDL) on the SQL layer, and not really needed in MariaDB. ER_TABLE_IN_FK_CHECK: Replaced with ER_UNUSED_28. HA_ERR_TABLE_IN_FK_CHECK: Remove. row_ins_check_foreign_constraints(): Do not acquire dict_sys.latch either. The SQL-layer MDL will protect us. This was reviewed by Thirunarayanan Balathandayuthapani and tested by Matthias Leich.
531 lines
19 KiB
Plaintext
531 lines
19 KiB
Plaintext
call mtr.add_suppression("InnoDB: Warning: Small buffer pool size");
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SET @global_innodb_file_per_table_orig = @@global.innodb_file_per_table;
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SET GLOBAL innodb_file_per_table = on;
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CREATE TABLE t1 (c1 INT PRIMARY KEY, c2 INT, c3 TEXT)
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ENGINE=InnoDB STATS_PERSISTENT=0;
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INSERT INTO t1 VALUES (1,1,''), (2,2,''), (3,3,''), (4,4,''), (5,5,'');
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SET GLOBAL innodb_monitor_enable = module_ddl;
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 0
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ddl_online_create_index 0
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ddl_pending_alter_table 0
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 0
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SET DEBUG_SYNC = 'RESET';
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SET DEBUG_SYNC = 'write_row_noreplace SIGNAL have_handle WAIT_FOR go_ahead';
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INSERT INTO t1 VALUES(1,2,3);
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connect con1,localhost,root,,;
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SET DEBUG_SYNC = 'now WAIT_FOR have_handle';
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SET lock_wait_timeout = 1;
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ALTER TABLE t1 ADD UNIQUE INDEX(c2);
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ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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SET DEBUG_SYNC = 'now SIGNAL go_ahead';
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connection default;
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ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 0
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ddl_online_create_index 0
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ddl_pending_alter_table 0
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 0
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connection con1;
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SET @saved_debug_dbug = @@SESSION.debug_dbug;
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SET DEBUG_DBUG = '+d,innodb_OOM_prepare_inplace_alter';
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ALTER TABLE t1 ADD UNIQUE INDEX(c2);
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ERROR HY000: Out of memory.
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SET DEBUG_DBUG = @saved_debug_dbug;
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SET DEBUG_DBUG = '+d,innodb_OOM_inplace_alter';
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CREATE UNIQUE INDEX c2 ON t1(c2);
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ERROR HY000: Out of memory.
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SET DEBUG_DBUG = @saved_debug_dbug;
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SET DEBUG_DBUG = '+d,innodb_OOM_prepare_add_index';
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ALTER TABLE t1 ADD KEY(c2), ADD KEY c3_10(c3(10)), ADD KEY c3_c2(c3(4),c2);
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ERROR HY000: Out of memory.
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SET DEBUG_DBUG = @saved_debug_dbug;
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CREATE UNIQUE INDEX c2 ON t1(c2);
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DROP INDEX c2 ON t1;
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connection default;
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` int(11) NOT NULL,
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`c2` int(11) DEFAULT NULL,
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`c3` text DEFAULT NULL,
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PRIMARY KEY (`c1`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 STATS_PERSISTENT=0
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BEGIN;
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INSERT INTO t1 VALUES(7,4,2);
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connection con1;
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SET DEBUG_SYNC = 'row_log_apply_before SIGNAL scanned WAIT_FOR rollback_done';
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ALTER TABLE t1 ADD UNIQUE INDEX(c2);
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ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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connection default;
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COMMIT;
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connection con1;
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ALTER TABLE t1 ADD UNIQUE INDEX(c2);
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ERROR 23000: Duplicate entry '4' for key 'c2'
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connection default;
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DELETE FROM t1 WHERE c1 = 7;
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connection con1;
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ALTER TABLE t1 ADD FOREIGN KEY(c2) REFERENCES t1(c2), ALGORITHM = INPLACE;
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ERROR 0A000: ALGORITHM=INPLACE is not supported. Reason: Adding foreign keys needs foreign_key_checks=OFF. Try ALGORITHM=COPY
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ALTER TABLE t1 ADD UNIQUE INDEX(c2), LOCK = EXCLUSIVE, ALGORITHM = INPLACE;
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DROP INDEX c2 ON t1;
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ALTER TABLE t1 ADD UNIQUE INDEX(c2);
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connection default;
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SET DEBUG_SYNC = 'now WAIT_FOR scanned';
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 0
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ddl_online_create_index 1
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ddl_pending_alter_table 1
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 0
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BEGIN;
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INSERT INTO t1 VALUES(7,4,2);
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ROLLBACK;
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SET DEBUG_SYNC = 'now SIGNAL rollback_done';
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connection con1;
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ERROR 23000: Duplicate entry '4' for key 'c2'
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SET DEBUG_SYNC = 'row_log_apply_after SIGNAL created WAIT_FOR dml_done';
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ALTER TABLE t1 ADD UNIQUE INDEX(c2);
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connection default;
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SET DEBUG_SYNC = 'now WAIT_FOR created';
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 0
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ddl_online_create_index 0
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ddl_pending_alter_table 1
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 0
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INSERT INTO t1 VALUES(6,3,1);
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SET DEBUG_SYNC = 'now SIGNAL dml_done';
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connection con1;
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ERROR 23000: Duplicate entry for key 'c2'
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DELETE FROM t1 WHERE c1=6;
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ALTER TABLE t1 ADD UNIQUE INDEX(c2);
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 0
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ddl_online_create_index 0
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ddl_pending_alter_table 0
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 0
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connection default;
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INSERT INTO t1 VALUES(6,3,1);
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ERROR 23000: Duplicate entry '3' for key 'c2'
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INSERT INTO t1 VALUES(7,4,2);
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ERROR 23000: Duplicate entry '4' for key 'c2'
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ALTER TABLE t1 STATS_PERSISTENT=1;
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ANALYZE TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status Engine-independent statistics collected
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test.t1 analyze Warning Engine-independent statistics are not collected for column 'c3'
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test.t1 analyze status OK
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UPDATE mysql.innodb_index_stats SET stat_value = 5
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WHERE database_name = 'test' AND table_name= 't1' AND index_name = 'PRIMARY'
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AND stat_value = 6;
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SELECT * FROM mysql.innodb_index_stats WHERE table_name IN ('t1');
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database_name table_name index_name last_update stat_name stat_value sample_size stat_description
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test t1 PRIMARY LAST_UPDATE n_diff_pfx01 5 1 c1
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test t1 PRIMARY LAST_UPDATE n_leaf_pages 1 NULL Number of leaf pages in the index
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test t1 PRIMARY LAST_UPDATE size 1 NULL Number of pages in the index
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test t1 c2 LAST_UPDATE n_diff_pfx01 5 1 c2
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test t1 c2 LAST_UPDATE n_leaf_pages 1 NULL Number of leaf pages in the index
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test t1 c2 LAST_UPDATE size 1 NULL Number of pages in the index
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CREATE TABLE t1_c2_stats SELECT * FROM mysql.innodb_index_stats
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WHERE database_name = 'test' AND table_name = 't1' and index_name = 'c2';
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ALTER TABLE t1_c2_stats ENGINE=INNODB;
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DROP INDEX c2 ON t1;
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ANALYZE TABLE t1_c2_stats;
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Table Op Msg_type Msg_text
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test.t1_c2_stats analyze status Engine-independent statistics collected
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test.t1_c2_stats analyze status OK
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SELECT * FROM mysql.innodb_index_stats WHERE table_name IN ('t1', 't1_c2_stats');
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database_name table_name index_name last_update stat_name stat_value sample_size stat_description
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test t1 PRIMARY LAST_UPDATE n_diff_pfx01 5 1 c1
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test t1 PRIMARY LAST_UPDATE n_leaf_pages 1 NULL Number of leaf pages in the index
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test t1 PRIMARY LAST_UPDATE size 1 NULL Number of pages in the index
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connection con1;
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KILL QUERY @id;
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ERROR 70100: Query execution was interrupted
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SET DEBUG_SYNC = 'row_log_apply_before SIGNAL c2d_created WAIT_FOR kill_done';
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CREATE INDEX c2d ON t1(c2);
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connection default;
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SET DEBUG_SYNC = 'now WAIT_FOR c2d_created';
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 0
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ddl_online_create_index 1
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ddl_pending_alter_table 1
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 0
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KILL QUERY @id;
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SET DEBUG_SYNC = 'now SIGNAL kill_done';
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connection con1;
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ERROR 70100: Query execution was interrupted
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 0
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ddl_online_create_index 0
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ddl_pending_alter_table 0
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 0
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connection default;
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CHECK TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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INSERT INTO t1 SELECT 5 + c1, c2, c3 FROM t1;
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INSERT INTO t1 SELECT 10 + c1, c2, c3 FROM t1;
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INSERT INTO t1 SELECT 20 + c1, c2, c3 FROM t1;
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INSERT INTO t1 SELECT 40 + c1, c2, c3 FROM t1;
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EXPLAIN SELECT COUNT(*) FROM t1 WHERE c2 > 3;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 5 Using where
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ANALYZE TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status Engine-independent statistics collected
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test.t1 analyze Warning Engine-independent statistics are not collected for column 'c3'
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test.t1 analyze status OK
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connection con1;
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UPDATE t1_c2_stats SET index_name = 'c2d';
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UPDATE t1_c2_stats SET stat_value = 2 WHERE stat_name = 'n_diff_pfx01';
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INSERT INTO t1_c2_stats
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SELECT database_name, table_name, index_name, last_update, 'n_diff_pfx02', 80,
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sample_size, 'c2,c1' FROM t1_c2_stats
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WHERE stat_name = 'n_diff_pfx01' AND stat_description = 'c2';
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INSERT INTO mysql.innodb_index_stats SELECT * FROM t1_c2_stats;
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DROP TABLE t1_c2_stats;
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CREATE INDEX c2d ON t1(c2);
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SHOW INDEX FROM t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment Index_comment Ignored
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t1 0 PRIMARY 1 c1 A 80 NULL NULL BTREE NO
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t1 1 c2d 1 c2 A 10 NULL NULL YES BTREE NO
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EXPLAIN SELECT COUNT(*) FROM t1 WHERE c2 > 3;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 range c2d c2d 5 NULL 32 Using where; Using index
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`c1` int(11) NOT NULL,
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`c2` int(11) DEFAULT NULL,
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`c3` text DEFAULT NULL,
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PRIMARY KEY (`c1`),
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KEY `c2d` (`c2`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 STATS_PERSISTENT=1
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connection default;
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SET @merge_encrypt_0=
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(SELECT variable_value FROM information_schema.global_status
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WHERE variable_name = 'innodb_encryption_n_merge_blocks_encrypted');
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SET @merge_decrypt_0=
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(SELECT variable_value FROM information_schema.global_status
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WHERE variable_name = 'innodb_encryption_n_merge_blocks_decrypted');
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SET @rowlog_encrypt_0=
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(SELECT variable_value FROM information_schema.global_status
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WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_encrypted');
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connection con1;
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SET DEBUG_SYNC = 'row_log_apply_before SIGNAL c2e_created WAIT_FOR dml2_done';
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SET lock_wait_timeout = 10;
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ALTER TABLE t1 CHANGE c2 c22 INT, DROP INDEX c2d, ADD INDEX c2e(c22, c3(10)), ALGORITHM = NOCOPY;
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connection default;
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INSERT INTO t1 SELECT 80 + c1, c2, c3 FROM t1;
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INSERT INTO t1 SELECT 160 + c1, c2, c3 FROM t1;
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SET DEBUG_SYNC = 'now WAIT_FOR c2e_created';
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 0
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ddl_online_create_index 1
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ddl_pending_alter_table 1
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 0
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BEGIN;
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DELETE FROM t1;
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ROLLBACK;
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UPDATE t1 SET c2 = c2 + 1;
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BEGIN;
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UPDATE t1 SET c2 = c2 + 1;
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DELETE FROM t1;
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ROLLBACK;
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BEGIN;
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DELETE FROM t1;
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ROLLBACK;
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UPDATE t1 SET c2 = c2 + 1;
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BEGIN;
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UPDATE t1 SET c2 = c2 + 1;
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DELETE FROM t1;
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ROLLBACK;
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BEGIN;
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DELETE FROM t1;
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ROLLBACK;
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UPDATE t1 SET c2 = c2 + 1;
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BEGIN;
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UPDATE t1 SET c2 = c2 + 1;
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DELETE FROM t1;
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ROLLBACK;
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BEGIN;
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DELETE FROM t1;
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ROLLBACK;
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UPDATE t1 SET c2 = c2 + 1;
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BEGIN;
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UPDATE t1 SET c2 = c2 + 1;
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DELETE FROM t1;
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ROLLBACK;
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 0
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ddl_online_create_index 1
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ddl_pending_alter_table 1
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 1
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SELECT sf.name, sf.pos FROM INFORMATION_SCHEMA.INNODB_SYS_INDEXES si
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INNER JOIN INFORMATION_SCHEMA.INNODB_SYS_FIELDS sf
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ON si.index_id = sf.index_id WHERE si.name = '?c2e';
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name pos
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c2 0
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c3 1
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SET @merge_encrypt_1=
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(SELECT variable_value FROM information_schema.global_status
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WHERE variable_name = 'innodb_encryption_n_merge_blocks_encrypted');
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SET @merge_decrypt_1=
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(SELECT variable_value FROM information_schema.global_status
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WHERE variable_name = 'innodb_encryption_n_merge_blocks_decrypted');
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SET @rowlog_encrypt_1=
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(SELECT variable_value FROM information_schema.global_status
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WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_encrypted');
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SELECT
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(@merge_encrypt_1-@merge_encrypt_0)-
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(@merge_decrypt_1-@merge_decrypt_0) as sort_balance,
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@merge_encrypt_1>@merge_encrypt_0, @merge_decrypt_1>@merge_decrypt_0,
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@rowlog_encrypt_1>@rowlog_encrypt_0;
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sort_balance @merge_encrypt_1>@merge_encrypt_0 @merge_decrypt_1>@merge_decrypt_0 @rowlog_encrypt_1>@rowlog_encrypt_0
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0 0 0 0
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SET DEBUG_SYNC = 'now SIGNAL dml2_done';
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connection con1;
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ERROR HY000: Creating index 'c2e' required more than 'innodb_online_alter_log_max_size' bytes of modification log. Please try again
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 1
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ddl_online_create_index 0
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ddl_pending_alter_table 0
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 1
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SELECT sf.name, sf.pos FROM INFORMATION_SCHEMA.INNODB_SYS_INDEXES si
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INNER JOIN INFORMATION_SCHEMA.INNODB_SYS_FIELDS sf
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ON si.index_id = sf.index_id WHERE si.name = 'c2e';
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name pos
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 1
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ddl_online_create_index 0
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ddl_pending_alter_table 0
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 1
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connection default;
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ALTER TABLE t1 COMMENT 'testing if c2e will be dropped';
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SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
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name count
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ddl_background_drop_indexes 0
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ddl_online_create_index 0
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ddl_pending_alter_table 0
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ddl_sort_file_alter_table 0
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ddl_log_file_alter_table 1
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SET @merge_encrypt_1=
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(SELECT variable_value FROM information_schema.global_status
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WHERE variable_name = 'innodb_encryption_n_merge_blocks_encrypted');
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SET @merge_decrypt_1=
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(SELECT variable_value FROM information_schema.global_status
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WHERE variable_name = 'innodb_encryption_n_merge_blocks_decrypted');
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SET @rowlog_encrypt_1=
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(SELECT variable_value FROM information_schema.global_status
|
|
WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_encrypted');
|
|
SET @rowlog_decrypt_1=
|
|
(SELECT variable_value FROM information_schema.global_status
|
|
WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_decrypted');
|
|
connection con1;
|
|
SET DEBUG_SYNC = 'row_log_apply_before SIGNAL c2f_created WAIT_FOR dml3_done';
|
|
ALTER TABLE t1 ADD INDEX c2f(c2);
|
|
connection default;
|
|
SET DEBUG_SYNC = 'now WAIT_FOR c2f_created';
|
|
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
|
|
name count
|
|
ddl_background_drop_indexes 0
|
|
ddl_online_create_index 1
|
|
ddl_pending_alter_table 1
|
|
ddl_sort_file_alter_table 0
|
|
ddl_log_file_alter_table 1
|
|
BEGIN;
|
|
INSERT INTO t1 SELECT 320 + c1, c2, c3 FROM t1 WHERE c1 > 160;
|
|
DELETE FROM t1 WHERE c1 > 320;
|
|
ROLLBACK;
|
|
BEGIN;
|
|
UPDATE t1 SET c2 = c2 + 1;
|
|
DELETE FROM t1;
|
|
ROLLBACK;
|
|
BEGIN;
|
|
INSERT INTO t1 SELECT 320 + c1, c2, c3 FROM t1 WHERE c1 > 160;
|
|
DELETE FROM t1 WHERE c1 > 320;
|
|
ROLLBACK;
|
|
BEGIN;
|
|
UPDATE t1 SET c2 = c2 + 1;
|
|
DELETE FROM t1;
|
|
ROLLBACK;
|
|
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
|
|
name count
|
|
ddl_background_drop_indexes 0
|
|
ddl_online_create_index 1
|
|
ddl_pending_alter_table 1
|
|
ddl_sort_file_alter_table 0
|
|
ddl_log_file_alter_table 2
|
|
SET DEBUG_SYNC = 'now SIGNAL dml3_done';
|
|
connection con1;
|
|
Warnings:
|
|
Note 1831 Duplicate index `c2f`. This is deprecated and will be disallowed in a future release
|
|
ALTER TABLE t1 CHANGE c2 c22f INT;
|
|
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
|
|
name count
|
|
ddl_background_drop_indexes 0
|
|
ddl_online_create_index 0
|
|
ddl_pending_alter_table 0
|
|
ddl_sort_file_alter_table 0
|
|
ddl_log_file_alter_table 2
|
|
connection default;
|
|
SET @merge_encrypt_2=
|
|
(SELECT variable_value FROM information_schema.global_status
|
|
WHERE variable_name = 'innodb_encryption_n_merge_blocks_encrypted');
|
|
SET @merge_decrypt_2=
|
|
(SELECT variable_value FROM information_schema.global_status
|
|
WHERE variable_name = 'innodb_encryption_n_merge_blocks_decrypted');
|
|
SET @rowlog_encrypt_2=
|
|
(SELECT variable_value FROM information_schema.global_status
|
|
WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_encrypted');
|
|
SET @rowlog_decrypt_2=
|
|
(SELECT variable_value FROM information_schema.global_status
|
|
WHERE variable_name = 'innodb_encryption_n_rowlog_blocks_decrypted');
|
|
SELECT
|
|
(@merge_encrypt_2-@merge_encrypt_1)-
|
|
(@merge_decrypt_2-@merge_decrypt_1) as sort_balance,
|
|
(@rowlog_encrypt_2-@rowlog_encrypt_1)-
|
|
(@rowlog_decrypt_2-@rowlog_decrypt_1) as log_balance;
|
|
sort_balance log_balance
|
|
0 0
|
|
SELECT
|
|
@merge_encrypt_2-@merge_encrypt_1>0 as sort_encrypted,
|
|
@merge_decrypt_2-@merge_decrypt_1>0 as sort_decrypted,
|
|
@rowlog_encrypt_2-@rowlog_encrypt_1>0 as log_encrypted,
|
|
@rowlog_decrypt_2-@rowlog_decrypt_1>0 as log_decrypted;
|
|
sort_encrypted sort_decrypted log_encrypted log_decrypted
|
|
0 0 0 0
|
|
connection con1;
|
|
SELECT COUNT(c22f) FROM t1;
|
|
COUNT(c22f)
|
|
320
|
|
CHECK TABLE t1;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 check status OK
|
|
ALTER TABLE t1 ADD UNIQUE INDEX c3p5(c3(5));
|
|
ERROR 23000: Duplicate entry 'NULL' for key 'c3p5'
|
|
UPDATE t1 SET c3 = NULL WHERE c3 = '';
|
|
SET lock_wait_timeout = 1;
|
|
SET DEBUG_SYNC = 'row_log_apply_before SIGNAL c3p5_created WAIT_FOR ins_done';
|
|
ALTER TABLE t1 ADD UNIQUE INDEX c3p5(c3(5));
|
|
connection default;
|
|
SET DEBUG_SYNC = 'now WAIT_FOR c3p5_created';
|
|
SELECT sf.name, sf.pos FROM INFORMATION_SCHEMA.INNODB_SYS_INDEXES si
|
|
INNER JOIN INFORMATION_SCHEMA.INNODB_SYS_FIELDS sf
|
|
ON si.index_id = sf.index_id WHERE si.name = '?c3p5';
|
|
name pos
|
|
c3 0
|
|
SET DEBUG_SYNC = 'ib_after_row_insert SIGNAL ins_done WAIT_FOR ddl_timed_out';
|
|
INSERT INTO t1 VALUES(347,33101,NULL);
|
|
connection con1;
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
SET DEBUG_SYNC = 'now SIGNAL ddl_timed_out';
|
|
SELECT sf.name, sf.pos FROM INFORMATION_SCHEMA.INNODB_SYS_INDEXES si
|
|
INNER JOIN INFORMATION_SCHEMA.INNODB_SYS_FIELDS sf
|
|
ON si.index_id = sf.index_id WHERE si.name = 'c3p5';
|
|
name pos
|
|
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
|
|
name count
|
|
ddl_background_drop_indexes 1
|
|
ddl_online_create_index 0
|
|
ddl_pending_alter_table 0
|
|
ddl_sort_file_alter_table 0
|
|
ddl_log_file_alter_table 2
|
|
connection default;
|
|
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
|
|
name count
|
|
ddl_background_drop_indexes 1
|
|
ddl_online_create_index 0
|
|
ddl_pending_alter_table 0
|
|
ddl_sort_file_alter_table 0
|
|
ddl_log_file_alter_table 2
|
|
connection default;
|
|
SHOW CREATE TABLE t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`c1` int(11) NOT NULL,
|
|
`c22f` int(11) DEFAULT NULL,
|
|
`c3` text DEFAULT NULL,
|
|
PRIMARY KEY (`c1`),
|
|
KEY `c2d` (`c22f`),
|
|
KEY `c2f` (`c22f`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=latin1 STATS_PERSISTENT=1 COMMENT='testing if c2e will be dropped'
|
|
ALTER TABLE t1 DROP INDEX c2d, DROP INDEX c2f;
|
|
SELECT name, count FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE subsystem = 'ddl';
|
|
name count
|
|
ddl_background_drop_indexes 0
|
|
ddl_online_create_index 0
|
|
ddl_pending_alter_table 0
|
|
ddl_sort_file_alter_table 0
|
|
ddl_log_file_alter_table 2
|
|
ALTER TABLE t1 ADD INDEX c2h(c22f), ALGORITHM = INPLACE;
|
|
ALTER TABLE t1 ADD INDEX c2h(c22f), ALGORITHM = COPY;
|
|
ERROR 42000: Duplicate key name 'c2h'
|
|
SET DEBUG_SYNC = 'RESET';
|
|
SET GLOBAL innodb_monitor_disable = module_ddl;
|
|
DROP TABLE t1;
|
|
#
|
|
# MDEV-13205 assertion !dict_index_is_online_ddl(index) upon ALTER TABLE
|
|
#
|
|
CREATE TABLE t1 (c VARCHAR(64)) ENGINE=InnoDB;
|
|
SET DEBUG_SYNC = 'row_log_apply_before SIGNAL t1u_created WAIT_FOR dup_done';
|
|
ALTER TABLE t1 ADD UNIQUE(c);
|
|
connection con1;
|
|
SET DEBUG_SYNC = 'now WAIT_FOR t1u_created';
|
|
BEGIN;
|
|
INSERT INTO t1 VALUES('bar'),('bar');
|
|
SET DEBUG_SYNC = 'now SIGNAL dup_done';
|
|
connection default;
|
|
ERROR 23000: Duplicate entry 'bar' for key 'c'
|
|
SET DEBUG_SYNC = 'RESET';
|
|
disconnect con1;
|
|
CREATE TABLE t2 (c VARCHAR(64)) ENGINE=InnoDB;
|
|
ALTER TABLE t2 ADD FOREIGN KEY (c) REFERENCES t1 (c);
|
|
ERROR HY000: Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
|
|
DROP TABLE t2,t1;
|
|
CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ENGINE=InnoDB;
|
|
connect con1,localhost,root,,;
|
|
SET DEBUG_SYNC = 'row_log_apply_before SIGNAL created WAIT_FOR inserted';
|
|
ALTER TABLE t1 ADD INDEX(b);
|
|
connection default;
|
|
SET DEBUG_SYNC = 'now WAIT_FOR created';
|
|
BEGIN;
|
|
INSERT INTO t1 VALUES(1,1);
|
|
ROLLBACK;
|
|
SET DEBUG_SYNC = 'now SIGNAL inserted';
|
|
connection con1;
|
|
disconnect con1;
|
|
connection default;
|
|
SELECT * FROM t1;
|
|
a b
|
|
CHECK TABLE t1;
|
|
Table Op Msg_type Msg_text
|
|
test.t1 check status OK
|
|
DROP TABLE t1;
|
|
SET DEBUG_SYNC = 'RESET';
|
|
SET GLOBAL innodb_file_per_table = @global_innodb_file_per_table_orig;
|
|
SET GLOBAL innodb_monitor_enable = default;
|
|
SET GLOBAL innodb_monitor_disable = default;
|