mirror of
https://github.com/MariaDB/server.git
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114 lines
4.5 KiB
Text
114 lines
4.5 KiB
Text
create table t1(
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id int auto_increment primary key,
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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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)
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with system versioning
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engine innodb;
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insert into t1 values ();
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set @ts0= now(6);
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insert into t1 values ();
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select sys_trx_start from t1 where id = last_insert_id() into @tx0;
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Warnings:
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Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
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select transaction_id = @tx0 from mysql.transaction_registry
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order by transaction_id desc limit 1;
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transaction_id = @tx0
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1
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set @ts1= now(6);
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insert into t1 values ();
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select sys_trx_start from t1 where id = last_insert_id() into @tx1;
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Warnings:
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Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
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select transaction_id = @tx1 from mysql.transaction_registry
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order by transaction_id desc limit 1;
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transaction_id = @tx1
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1
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set @ts2= now(6);
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insert into t1 values ();
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select sys_trx_start from t1 where id = last_insert_id() into @tx2;
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Warnings:
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Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
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select transaction_id = @tx2 from mysql.transaction_registry
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order by transaction_id desc limit 1;
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transaction_id = @tx2
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1
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set @ts3= now(6);
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select
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trt_trx_id(@ts0) < @tx0 as A,
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trt_trx_id(@ts0, true) = @tx0 as B,
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trt_trx_id(@ts1) = @tx0 as C,
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trt_trx_id(@ts1, true) = @tx1 as D,
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trt_trx_id(@ts2) = @tx1 as E,
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trt_trx_id(@ts2, true) = @tx2 as F,
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trt_trx_id(@ts3) = @tx2 as G,
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trt_trx_id(@ts3, true) is null as H;
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A B C D E F G H
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1 1 1 1 1 1 1 1
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select
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trt_commit_id(@ts0) < @tx0 as A,
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trt_commit_id(@ts0, true) = trt_commit_id(null, @tx0) as B,
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trt_commit_id(@ts1) = trt_commit_id(null, @tx0) as C,
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trt_commit_id(@ts1, true) = trt_commit_id(null, @tx1) as D,
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trt_commit_id(@ts2) = trt_commit_id(null, @tx1) as E,
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trt_commit_id(@ts2, true) = trt_commit_id(null, @tx2) as F,
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trt_commit_id(@ts3) = trt_commit_id(null, @tx2) as G,
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trt_commit_id(@ts3, true) is null as H;
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A B C D E F G H
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1 1 1 1 1 1 1 1
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select
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trt_trx_sees(@tx1, @tx0) as A,
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not trt_trx_sees(@tx0, @tx1) as B,
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trt_trx_sees_eq(@tx1, @tx1) as C,
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not trt_trx_sees(@tx1, @tx1) as D,
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trt_trx_sees(@tx2, 0) as E,
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trt_trx_sees(-1, @tx2) as F;
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A B C D E F
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1 1 1 1 1 1
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select trt_trx_sees(0, @tx2);
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trt_trx_sees(0, @tx2)
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0
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set transaction isolation level read uncommitted;
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insert into t1 values ();
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select sys_trx_start from t1 where id = last_insert_id() into @tx3;
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Warnings:
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Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
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select isolation_level = 'READ-UNCOMMITTED' from mysql.transaction_registry where transaction_id = @tx3;
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isolation_level = 'READ-UNCOMMITTED'
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1
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set transaction isolation level read committed;
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insert into t1 values ();
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select sys_trx_start from t1 where id = last_insert_id() into @tx4;
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Warnings:
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Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
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select isolation_level = 'READ-COMMITTED' from mysql.transaction_registry where transaction_id = @tx4;
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isolation_level = 'READ-COMMITTED'
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1
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set transaction isolation level serializable;
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insert into t1 values ();
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select sys_trx_start from t1 where id = last_insert_id() into @tx5;
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Warnings:
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Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
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select isolation_level = 'SERIALIZABLE' from mysql.transaction_registry where transaction_id = @tx5;
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isolation_level = 'SERIALIZABLE'
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1
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set transaction isolation level repeatable read;
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insert into t1 values ();
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select sys_trx_start from t1 where id = last_insert_id() into @tx6;
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Warnings:
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Warning 1287 '<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
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select isolation_level = 'REPEATABLE-READ' from mysql.transaction_registry where transaction_id = @tx6;
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isolation_level = 'REPEATABLE-READ'
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1
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drop table t1;
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call verify_trt;
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No A B C D
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1 1 1 1 1
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2 1 1 1 1
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3 1 1 1 1
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4 1 1 1 1
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5 1 1 1 1
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6 1 1 1 1
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7 1 1 1 1
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8 1 1 1 1
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