-- source suite/versioning/common.inc create table t1( id int auto_increment primary key, sys_trx_start bigint unsigned as row start invisible, sys_trx_end bigint unsigned as row end invisible, period for system_time (sys_trx_start, sys_trx_end) ) with system versioning engine innodb; # TRT_TRX_ID, TRT_COMMIT_ID, TRT_TRX_SEES # insert into t1 values (); --real_sleep 0.01 set @ts0= now(6); insert into t1 values (); --enable_prepare_warnings select sys_trx_start from t1 where id = last_insert_id() into @tx0; select transaction_id = @tx0 from mysql.transaction_registry order by transaction_id desc limit 1; set @ts1= now(6); insert into t1 values (); select sys_trx_start from t1 where id = last_insert_id() into @tx1; select transaction_id = @tx1 from mysql.transaction_registry order by transaction_id desc limit 1; set @ts2= now(6); insert into t1 values (); select sys_trx_start from t1 where id = last_insert_id() into @tx2; select transaction_id = @tx2 from mysql.transaction_registry order by transaction_id desc limit 1; set @ts3= now(6); select trt_trx_id(@ts0) < @tx0 as A, trt_trx_id(@ts0, true) = @tx0 as B, trt_trx_id(@ts1) = @tx0 as C, trt_trx_id(@ts1, true) = @tx1 as D, trt_trx_id(@ts2) = @tx1 as E, trt_trx_id(@ts2, true) = @tx2 as F, trt_trx_id(@ts3) = @tx2 as G, trt_trx_id(@ts3, true) is null as H; select trt_commit_id(@ts0) < @tx0 as A, trt_commit_id(@ts0, true) = trt_commit_id(null, @tx0) as B, trt_commit_id(@ts1) = trt_commit_id(null, @tx0) as C, trt_commit_id(@ts1, true) = trt_commit_id(null, @tx1) as D, trt_commit_id(@ts2) = trt_commit_id(null, @tx1) as E, trt_commit_id(@ts2, true) = trt_commit_id(null, @tx2) as F, trt_commit_id(@ts3) = trt_commit_id(null, @tx2) as G, trt_commit_id(@ts3, true) is null as H; select trt_trx_sees(@tx1, @tx0) as A, not trt_trx_sees(@tx0, @tx1) as B, trt_trx_sees_eq(@tx1, @tx1) as C, not trt_trx_sees(@tx1, @tx1) as D, trt_trx_sees(@tx2, 0) as E, trt_trx_sees(-1, @tx2) as F; select trt_trx_sees(0, @tx2); # TRT_ISO_LEVEL # set transaction isolation level read uncommitted; insert into t1 values (); select sys_trx_start from t1 where id = last_insert_id() into @tx3; select isolation_level = 'READ-UNCOMMITTED' from mysql.transaction_registry where transaction_id = @tx3; set transaction isolation level read committed; insert into t1 values (); select sys_trx_start from t1 where id = last_insert_id() into @tx4; select isolation_level = 'READ-COMMITTED' from mysql.transaction_registry where transaction_id = @tx4; set transaction isolation level serializable; insert into t1 values (); select sys_trx_start from t1 where id = last_insert_id() into @tx5; select isolation_level = 'SERIALIZABLE' from mysql.transaction_registry where transaction_id = @tx5; set transaction isolation level repeatable read; insert into t1 values (); select sys_trx_start from t1 where id = last_insert_id() into @tx6; select isolation_level = 'REPEATABLE-READ' from mysql.transaction_registry where transaction_id = @tx6; --disable_prepare_warnings drop table t1; call verify_trt; -- source suite/versioning/common_finish.inc