mirror of
https://github.com/MariaDB/server.git
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478 lines
15 KiB
Text
478 lines
15 KiB
Text
set default_storage_engine= innodb;
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create or replace table t1 (
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x int,
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sys_trx_start bigint(20) unsigned as row start invisible,
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sys_trx_end bigint(20) unsigned as row end invisible,
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period for system_time (sys_trx_start, sys_trx_end)
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) with system versioning;
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insert into t1 (x) values (1);
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# ALTER ADD SYSTEM VERSIONING should write to mysql.transaction_registry
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set @@system_versioning_alter_history=keep;
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create or replace table t1 (x int);
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insert into t1 values (1);
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alter table t1
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add column s bigint unsigned as row start,
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add column e bigint unsigned as row end,
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add period for system_time(s, e),
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add system versioning,
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algorithm=inplace;
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select s from t1 into @trx_start;
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select count(*) = 1 from mysql.transaction_registry where transaction_id = @trx_start;
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count(*) = 1
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1
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create or replace table t1 (x int);
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select count(*) from mysql.transaction_registry into @tmp;
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alter table t1
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add column s bigint unsigned as row start,
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add column e bigint unsigned as row end,
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add period for system_time(s, e),
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add system versioning,
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algorithm=inplace;
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select count(*) = @tmp from mysql.transaction_registry;
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count(*) = @tmp
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1
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create or replace table t1 (x int);
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insert into t1 values (1);
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alter table t1
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add column s bigint unsigned as row start,
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add column e bigint unsigned as row end,
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add period for system_time(s, e),
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add system versioning,
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algorithm=copy;
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select s from t1 into @trx_start;
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select count(*) = 1 from mysql.transaction_registry where transaction_id = @trx_start;
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count(*) = 1
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1
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create or replace table t1 (x int);
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select count(*) from mysql.transaction_registry into @tmp;
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alter table t1
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add column s bigint unsigned as row start,
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add column e bigint unsigned as row end,
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add period for system_time(s, e),
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add system versioning,
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algorithm=copy;
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select count(*) = @tmp + 1 from mysql.transaction_registry;
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count(*) = @tmp + 1
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1
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# TRX_ID to TIMESTAMP versioning switch
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create or replace table t1 (
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x int,
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sys_start bigint unsigned as row start invisible,
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sys_end bigint unsigned as row end invisible,
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period for system_time (sys_start, sys_end)
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) with system versioning;
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insert into t1 values (1);
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alter table t1 drop column sys_start, drop column sys_end;
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select row_end = 18446744073709551615 as transaction_based from t1 for system_time all;
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transaction_based
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1
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# Simple vs SEES algorithms
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create or replace table t1 (
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x int,
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sys_start bigint(20) unsigned as row start invisible,
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sys_end bigint(20) unsigned as row end invisible,
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period for system_time (sys_start, sys_end)
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) with system versioning;
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set transaction isolation level read committed;
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start transaction;
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insert into t1 values (1);
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connect con1,localhost,root,,test;
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set transaction isolation level read committed;
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start transaction;
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insert into t1 values (2);
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connect con2,localhost,root,,test;
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set transaction isolation level read committed;
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start transaction;
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insert into t1 values (3);
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commit;
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disconnect con2;
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connection default;
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set @ts1= sysdate(6);
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connection con1;
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commit;
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disconnect con1;
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connection default;
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set @ts2= sysdate(6);
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commit;
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set @ts3= sysdate(6);
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select sys_start from t1 where x = 1 into @trx_id1;
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select sys_start from t1 where x = 2 into @trx_id2;
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select sys_start from t1 where x = 3 into @trx_id3;
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select @trx_id1 < @trx_id2, @trx_id2 < @trx_id3;
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@trx_id1 < @trx_id2 @trx_id2 < @trx_id3
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1 1
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select @ts1 < @ts2, @ts2 < @ts3;
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@ts1 < @ts2 @ts2 < @ts3
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1 1
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# MVCC is resolved
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select * from t1 for system_time as of transaction @trx_id1;
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x
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1
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2
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3
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select * from t1 for system_time as of timestamp @ts1;
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x
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3
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select * from t1 for system_time as of transaction @trx_id2;
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x
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2
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3
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select * from t1 for system_time as of timestamp @ts2;
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x
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2
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3
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select * from t1 for system_time as of transaction @trx_id3;
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x
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3
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select * from t1 for system_time as of timestamp @ts3;
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x
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1
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2
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3
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#
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# MDEV-15427 IB: TRX_ID based operations inside transaction generate history
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#
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create or replace table t1(
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x int(10),
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row_start bigint(20) unsigned as row start,
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row_end bigint(20) unsigned as row end,
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period for system_time(row_start, row_end)
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) with system versioning;
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begin;
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insert into t1 (x) values (1);
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delete from t1;
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commit;
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select x from t1 for system_time all;
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x
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insert into t1 (x) values (2);
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begin;
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update t1 set x= 3;
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update t1 set x= 4;
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commit;
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select x, row_start < row_end from t1 for system_time all;
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x row_start < row_end
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4 1
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2 1
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# MDEV-16010 Too many rows with AS OF point_in_the_past_or_NULL
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create or replace table t1 (
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x int,
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row_start bigint unsigned as row start invisible,
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row_end bigint unsigned as row end invisible,
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period for system_time (row_start, row_end)
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) with system versioning engine innodb;
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insert into t1 (x) values (1);
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delete from t1;
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select * from t1 for system_time as of timestamp'1990-1-1 00:00';
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x
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select * from t1 for system_time as of NULL;
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x
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# MDEV-16024 transaction_registry.begin_timestamp is wrong for explicit transactions
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create or replace table t1 (
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x int(11) default null,
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row_start bigint(20) unsigned generated always as row start invisible,
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row_end bigint(20) unsigned generated always as row end invisible,
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period for system_time (row_start, row_end)
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) engine=innodb with system versioning;
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begin;
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set @ts1= now(6);
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insert into t1 values (1);
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commit;
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select row_start from t1 into @trx_id;
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select trt_begin_ts(@trx_id) <= @ts1 as BEGIN_TS_GOOD;
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BEGIN_TS_GOOD
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1
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drop database test;
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create database test;
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use test;
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#
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# MDEV-16100 FOR SYSTEM_TIME erroneously resolves string user variables as transaction IDs
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#
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CREATE TABLE t1 (
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x INT,
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sys_trx_start BIGINT UNSIGNED AS ROW START,
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sys_trx_end BIGINT UNSIGNED AS ROW END,
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PERIOD FOR SYSTEM_TIME (sys_trx_start, sys_trx_end)
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) WITH SYSTEM VERSIONING ENGINE=INNODB;
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INSERT INTO t1 (x) VALUES (1);
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SET @ts= DATE_ADD(NOW(), INTERVAL 1 YEAR);
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EXPLAIN EXTENDED SELECT x FROM t1 FOR SYSTEM_TIME AS OF TRANSACTION @ts;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 1 100.00 Using where
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Warnings:
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Note 1003 select `test`.`t1`.`x` AS `x` from `test`.`t1` FOR SYSTEM_TIME ALL where trt_trx_sees(`test`.`t1`.`sys_trx_end`,@`ts`) and trt_trx_sees_eq(@`ts`,`test`.`t1`.`sys_trx_start`)
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EXPLAIN EXTENDED SELECT x FROM t1 FOR SYSTEM_TIME AS OF TIMESTAMP @ts;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 1 100.00 Using where
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Warnings:
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Note 1003 select `test`.`t1`.`x` AS `x` from `test`.`t1` FOR SYSTEM_TIME ALL where trt_trx_sees(`test`.`t1`.`sys_trx_end`,<cache>(trt_trx_id(@`ts`))) and trt_trx_sees_eq(<cache>(trt_trx_id(@`ts`)),`test`.`t1`.`sys_trx_start`)
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EXPLAIN EXTENDED SELECT x FROM t1 FOR SYSTEM_TIME AS OF @ts;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 ALL NULL NULL NULL NULL 1 100.00 Using where
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Warnings:
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Note 1003 select `test`.`t1`.`x` AS `x` from `test`.`t1` FOR SYSTEM_TIME ALL where trt_trx_sees(`test`.`t1`.`sys_trx_end`,<cache>(trt_trx_id(@`ts`))) and trt_trx_sees_eq(<cache>(trt_trx_id(@`ts`)),`test`.`t1`.`sys_trx_start`)
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DROP TABLE t1;
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#
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# Testing AS OF with expressions of various kinds and data types
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#
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CREATE TABLE t1
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(
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x INT,
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sys_trx_start BIGINT UNSIGNED AS ROW START INVISIBLE,
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sys_trx_end BIGINT UNSIGNED AS ROW END INVISIBLE,
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PERIOD FOR SYSTEM_TIME (sys_trx_start, sys_trx_end)
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) WITH SYSTEM VERSIONING;
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INSERT INTO t1 VALUES (1);
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CREATE TABLE t2
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(
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x INT,
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sys_trx_start TIMESTAMP(6) AS ROW START INVISIBLE,
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sys_trx_end TIMESTAMP(6) AS ROW END INVISIBLE,
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PERIOD FOR SYSTEM_TIME (sys_trx_start, sys_trx_end)
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) WITH SYSTEM VERSIONING;
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INSERT INTO t2 VALUES (1);
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#
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# ROW is not supported
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#
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF (1,1);
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ERROR HY000: Illegal parameter data type row for operation 'FOR SYSTEM_TIME'
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF (1,1);
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ERROR HY000: Illegal parameter data type row for operation 'FOR SYSTEM_TIME'
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#
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# DOUBLE is not supported, use explicit CAST
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#
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF RAND();
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ERROR HY000: Illegal parameter data type double for operation 'FOR SYSTEM_TIME'
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF (RAND());
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ERROR HY000: Illegal parameter data type double for operation 'FOR SYSTEM_TIME'
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF COALESCE(RAND());
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ERROR HY000: Illegal parameter data type double for operation 'FOR SYSTEM_TIME'
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF RAND();
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ERROR HY000: Illegal parameter data type double for operation 'FOR SYSTEM_TIME'
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF (RAND());
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ERROR HY000: Illegal parameter data type double for operation 'FOR SYSTEM_TIME'
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF COALESCE(RAND());
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ERROR HY000: Illegal parameter data type double for operation 'FOR SYSTEM_TIME'
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#
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# DECIMAL is not supported, use explicit CAST
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#
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF 10.1;
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ERROR HY000: Illegal parameter data type decimal for operation 'FOR SYSTEM_TIME'
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF COALESCE(10.1);
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ERROR HY000: Illegal parameter data type decimal for operation 'FOR SYSTEM_TIME'
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF 10.1;
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ERROR HY000: Illegal parameter data type decimal for operation 'FOR SYSTEM_TIME'
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF COALESCE(10.1);
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ERROR HY000: Illegal parameter data type decimal for operation 'FOR SYSTEM_TIME'
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#
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# YEAR is not supported, use explicit CAST
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#
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BEGIN NOT ATOMIC
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DECLARE var YEAR;
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF var;
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END;
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$$
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ERROR HY000: Illegal parameter data type year for operation 'FOR SYSTEM_TIME'
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BEGIN NOT ATOMIC
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DECLARE var YEAR;
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF var;
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END;
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$$
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ERROR HY000: Illegal parameter data type year for operation 'FOR SYSTEM_TIME'
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#
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# ENUM is not supported, use explicit CAST
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#
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BEGIN NOT ATOMIC
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DECLARE var ENUM('xxx') DEFAULT 'xxx';
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF var;
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END;
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$$
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ERROR HY000: Illegal parameter data type enum for operation 'FOR SYSTEM_TIME'
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BEGIN NOT ATOMIC
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DECLARE var ENUM('xxx') DEFAULT 'xxx';
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF var;
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END;
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$$
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ERROR HY000: Illegal parameter data type enum for operation 'FOR SYSTEM_TIME'
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#
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# SET is not supported, use explicit CAST
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#
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BEGIN NOT ATOMIC
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DECLARE var SET('xxx') DEFAULT 'xxx';
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF var;
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END;
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$$
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ERROR HY000: Illegal parameter data type set for operation 'FOR SYSTEM_TIME'
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BEGIN NOT ATOMIC
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DECLARE var SET('xxx') DEFAULT 'xxx';
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF var;
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END;
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$$
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ERROR HY000: Illegal parameter data type set for operation 'FOR SYSTEM_TIME'
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#
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# BIT is resolved to TRANSACTION
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#
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BEGIN NOT ATOMIC
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DECLARE var BIT(10);
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF var;
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END;
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$$
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x
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BEGIN NOT ATOMIC
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DECLARE var BIT(10);
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF var;
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END;
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$$
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ERROR HY000: Transaction system versioning for `t2` is not supported
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#
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# String literals resolve to TIMESTAMP
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#
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF '2038-12-30 00:00:00';
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x
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1
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF '2038-12-30 00:00:00';
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x
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#
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# HEX hybrids resolve to TRANSACTION
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#
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF (0xFFFFFFFF);
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ERROR HY000: TRX_ID 4294967295 not found in `mysql.transaction_registry`
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF (0xFFFFFFFF);
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ERROR HY000: Transaction system versioning for `t2` is not supported
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#
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# BIT literals resolve to TRANSACTION
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#
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SELECT * FROM t1 FOR SYSTEM_TIME AS OF (b'11111111111111111111111111111111');
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ERROR HY000: TRX_ID 4294967295 not found in `mysql.transaction_registry`
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SELECT * FROM t2 FOR SYSTEM_TIME AS OF (b'11111111111111111111111111111111');
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ERROR HY000: Transaction system versioning for `t2` is not supported
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DROP TABLE t1, t2;
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#
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# MDEV-16094 Crash when using AS OF with a stored function
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#
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CREATE FUNCTION fts() RETURNS DATETIME RETURN '2001-01-01 10:20:30';
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CREATE FUNCTION ftx() RETURNS BIGINT UNSIGNED RETURN 1;
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CREATE TABLE ttx
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(
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x INT,
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start_timestamp BIGINT UNSIGNED GENERATED ALWAYS AS ROW START,
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end_timestamp BIGINT UNSIGNED GENERATED ALWAYS AS ROW END,
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PERIOD FOR SYSTEM_TIME(start_timestamp, end_timestamp)
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) ENGINE=InnoDB WITH SYSTEM VERSIONING;
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CREATE TABLE tts
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(
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x INT,
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start_timestamp TIMESTAMP(6) GENERATED ALWAYS AS ROW START,
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end_timestamp TIMESTAMP(6) GENERATED ALWAYS AS ROW END,
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PERIOD FOR SYSTEM_TIME(start_timestamp, end_timestamp)
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) ENGINE=InnoDB WITH SYSTEM VERSIONING;
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SELECT * FROM tts FOR SYSTEM_TIME AS OF fts();
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x start_timestamp end_timestamp
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SELECT * FROM tts FOR SYSTEM_TIME AS OF ftx();
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ERROR HY000: Transaction system versioning for `tts` is not supported
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SELECT * FROM ttx FOR SYSTEM_TIME AS OF fts();
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x start_timestamp end_timestamp
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SELECT * FROM ttx FOR SYSTEM_TIME AS OF ftx();
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x start_timestamp end_timestamp
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DROP TABLE tts;
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DROP TABLE ttx;
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DROP FUNCTION fts;
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DROP FUNCTION ftx;
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#
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# MDEV-16330 Allow instant change of WITH SYSTEM VERSIONING column attribute
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#
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SET @@SYSTEM_VERSIONING_ALTER_HISTORY=KEEP;
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CREATE TABLE t (
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a INT,
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b INT,
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row_start BIGINT UNSIGNED AS ROW START INVISIBLE,
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row_end BIGINT UNSIGNED AS ROW END INVISIBLE,
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PERIOD FOR SYSTEM_TIME(row_start, row_end)
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) WITH SYSTEM VERSIONING ENGINE=INNODB;
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INSERT INTO t VALUES (1,1);
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# without table rebuild
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SELECT c.prtype FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS AS c
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INNER JOIN INFORMATION_SCHEMA.INNODB_SYS_TABLES AS t
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ON c.table_id=t.table_id
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WHERE t.name='test/t' AND c.name='a';
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prtype
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50179
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ALTER TABLE t
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CHANGE a a INT WITHOUT SYSTEM VERSIONING;
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affected rows: 0
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info: Records: 0 Duplicates: 0 Warnings: 0
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SELECT c.prtype FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS AS c
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INNER JOIN INFORMATION_SCHEMA.INNODB_SYS_TABLES AS t
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ON c.table_id=t.table_id
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WHERE t.name='test/t' AND c.name='a';
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prtype
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1027
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UPDATE t SET a=11;
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SELECT COUNT(*) FROM t FOR SYSTEM_TIME ALL;
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COUNT(*)
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1
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# with table rebuild
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SELECT c.prtype FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS AS c
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INNER JOIN INFORMATION_SCHEMA.INNODB_SYS_TABLES AS t
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ON c.table_id=t.table_id
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WHERE t.name='test/t' AND c.name='a';
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prtype
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1027
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ALTER TABLE t
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CHANGE a a INT WITH SYSTEM VERSIONING,
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ADD PRIMARY KEY pk(a);
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affected rows: 0
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info: Records: 0 Duplicates: 0 Warnings: 0
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SELECT c.prtype FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS AS c
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INNER JOIN INFORMATION_SCHEMA.INNODB_SYS_TABLES AS t
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ON c.table_id=t.table_id
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WHERE t.name='test/t' AND c.name='a';
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prtype
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50435
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UPDATE t SET a=1;
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SELECT COUNT(*) FROM t FOR SYSTEM_TIME ALL;
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COUNT(*)
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2
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SHOW CREATE TABLE t;
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Table Create Table
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t CREATE TABLE `t` (
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`a` int(11) NOT NULL,
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`b` int(11) DEFAULT NULL,
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`row_start` bigint(20) unsigned GENERATED ALWAYS AS ROW START INVISIBLE,
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`row_end` bigint(20) unsigned GENERATED ALWAYS AS ROW END INVISIBLE,
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PRIMARY KEY (`a`,`row_end`),
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PERIOD FOR SYSTEM_TIME (`row_start`, `row_end`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 WITH SYSTEM VERSIONING
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# handles VIRTUAL columns too
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CREATE OR REPLACE TABLE t (
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a INT AS (b + 1),
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b INT,
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row_start BIGINT UNSIGNED AS ROW START INVISIBLE,
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row_end BIGINT UNSIGNED AS ROW END INVISIBLE,
|
|
PERIOD FOR SYSTEM_TIME(row_start, row_end)
|
|
) WITH SYSTEM VERSIONING ENGINE=INNODB;
|
|
INSERT INTO t VALUES (DEFAULT, 1);
|
|
SELECT c.prtype FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS AS c
|
|
INNER JOIN INFORMATION_SCHEMA.INNODB_SYS_TABLES AS t
|
|
ON c.table_id=t.table_id
|
|
WHERE t.name='test/t' AND c.name='b';
|
|
prtype
|
|
50179
|
|
ALTER TABLE t
|
|
CHANGE b b INT WITHOUT SYSTEM VERSIONING;
|
|
affected rows: 0
|
|
info: Records: 0 Duplicates: 0 Warnings: 0
|
|
SELECT c.prtype FROM INFORMATION_SCHEMA.INNODB_SYS_COLUMNS AS c
|
|
INNER JOIN INFORMATION_SCHEMA.INNODB_SYS_TABLES AS t
|
|
ON c.table_id=t.table_id
|
|
WHERE t.name='test/t' AND c.name='b';
|
|
prtype
|
|
1027
|
|
UPDATE t SET b=11;
|
|
SELECT COUNT(*) FROM t FOR SYSTEM_TIME ALL;
|
|
COUNT(*)
|
|
1
|
|
DROP TABLE t;
|
|
SET @@SYSTEM_VERSIONING_ALTER_HISTORY=ERROR;
|
|
SELECT count(*) from mysql.transaction_registry where begin_timestamp>=commit_timestamp;
|
|
count(*)
|
|
0
|