drop table if exists t1, t2;
set debug_sync='RESET' ;
connect addconroot, localhost, root,,;
connect addconroot2, localhost, root,,;
connection default;
create table t1 (n1 int, n2 int, n3 int,
key (n1, n2, n3),
key (n2, n3, n1),
key (n3, n1, n2));
create table t2 (i int);
alter table t1 disable keys;
insert into t1 values (1 , 2 , 3 );
reset master;
set debug_sync='alter_table_enable_indexes SIGNAL parked WAIT_FOR go' ;
alter table t1 enable keys;;
connection addconroot;
set debug_sync='now WAIT_FOR parked' ;
insert into t2 values (1 );
insert into t1 values (1 , 1 , 1 );;
connection addconroot2;
set debug_sync='now SIGNAL go' ;
connection default;
connection addconroot;
connection default;
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 # Gtid # # BEGIN GTID #-#-#
master-bin.000001 # Query # # use `test`; insert into t2 values (1)
master-bin.000001 # Query # # COMMIT
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; alter table t1 enable keys
master-bin.000001 # Gtid # # BEGIN GTID #-#-#
master-bin.000001 # Query # # use `test`; insert into t1 values (1, 1, 1)
master-bin.000001 # Query # # COMMIT
drop tables t1, t2;
disconnect addconroot;
disconnect addconroot2;
set debug_sync='RESET' ;
End of 5 .0 tests
drop table if exists t1, t2, t3;
connect addconroot, localhost, root,,;
connect addconroot2, localhost, root,,;
connection default;
create table t1 (i int);
reset master;
set debug_sync='alter_table_before_main_binlog SIGNAL parked WAIT_FOR go' ;
alter table t1 change i c char(10 ) default 'Test1' ;;
connection addconroot;
set debug_sync='now WAIT_FOR parked' ;
insert into t1 values ();;
connection addconroot2;
set debug_sync='now SIGNAL go' ;
connection default;
connection addconroot;
connection default;
select * from t1;
c
Test1
set debug_sync='alter_table_before_main_binlog SIGNAL parked WAIT_FOR go' ;
alter table t1 change c vc varchar(100 ) default 'Test2' ;;
connection addconroot;
set debug_sync='now WAIT_FOR parked' ;
rename table t1 to t2;;
connection addconroot2;
set debug_sync='now SIGNAL go' ;
connection default;
connection addconroot;
connection default;
drop table t2;
create table t1 (i int);
set debug_sync='alter_table_before_main_binlog SIGNAL parked WAIT_FOR go' ;
alter table t1 change i c char(10 ) default 'Test3' , rename to t2;;
connection addconroot;
set debug_sync='now WAIT_FOR parked' ;
insert into t2 values();;
connection addconroot2;
set debug_sync='now SIGNAL go' ;
connection default;
connection addconroot;
connection default;
select * from t2;
c
Test3
alter table t2 change c vc varchar(100 ) default 'Test2' , rename to t1;;
connection addconroot;
connection default;
rename table t1 to t3;
disconnect addconroot;
disconnect addconroot2;
drop table t3;
set debug_sync='alter_table_before_main_binlog SIGNAL parked WAIT_FOR go' ;
set debug_sync='RESET' ;
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; alter table t1 change i c char(10) default 'Test1'
master-bin.000001 # Gtid # # BEGIN GTID #-#-#
master-bin.000001 # Query # # use `test`; insert into t1 values ()
master-bin.000001 # Query # # COMMIT
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; alter table t1 change c vc varchar(100) default 'Test2'
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; rename table t1 to t2
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; DROP TABLE `t2` /* generated by server */
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; create table t1 (i int)
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; alter table t1 change i c char(10) default 'Test3', rename to t2
master-bin.000001 # Gtid # # BEGIN GTID #-#-#
master-bin.000001 # Query # # use `test`; insert into t2 values()
master-bin.000001 # Query # # COMMIT
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; alter table t2 change c vc varchar(100) default 'Test2', rename to t1
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; rename table t1 to t3
master-bin.000001 # Gtid # # GTID #-#-#
master-bin.000001 # Query # # use `test`; DROP TABLE `t3` /* generated by server */
End of 5 .1 tests
Messung V0.5 in Prozent C=27 H=100 G=73
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-08)
¤
*© Formatika GbR, Deutschland