Gecko [ www.jdcpatala.org ]

Name	Size	Permission
bug36547.result	455 B	-rw-r--r--
loaddata_autocom_ndb.result	740 B	-rw-r--r--
ndb_add_partition.result	13.36 KB	-rw-r--r--
ndb_addnode_restart.result	384 B	-rw-r--r--
ndb_addnode_restart2.result	454 B	-rw-r--r--
ndb_alter_table.result	19.49 KB	-rw-r--r--
ndb_alter_table2.result	685 B	-rw-r--r--
ndb_alter_table3.result	1.48 KB	-rw-r--r--
ndb_alter_table_backup.result	1.76 KB	-rw-r--r--
ndb_alter_table_dml.result	1.83 KB	-rw-r--r--
ndb_alter_table_error.result	664 B	-rw-r--r--
ndb_alter_table_online.result	29.02 KB	-rw-r--r--
ndb_alter_table_online2.result	3.21 KB	-rw-r--r--
ndb_alter_table_online_multi.r...	2 KB	-rw-r--r--
ndb_auto_increment.result	11.49 KB	-rw-r--r--
ndb_autoinc.result	2.69 KB	-rw-r--r--
ndb_backup_rate.result	912 B	-rw-r--r--
ndb_basic.result	32.68 KB	-rw-r--r--
ndb_bitfield.result	8.39 KB	-rw-r--r--
ndb_blob.result	26.47 KB	-rw-r--r--
ndb_blob_big.result	1.24 KB	-rw-r--r--
ndb_blob_partition.result	9.03 KB	-rw-r--r--
ndb_bug13563280.result	224 B	-rw-r--r--
ndb_bug14166590.result	416 B	-rw-r--r--
ndb_bug17624736.result	1.71 KB	-rw-r--r--
ndb_bug17719439.result	439 B	-rw-r--r--
ndb_bug19390895.result	1.67 KB	-rw-r--r--
ndb_bug26793.result	286 B	-rw-r--r--
ndb_bug31477.result	1.85 KB	-rw-r--r--
ndb_bulk_delete.result	1.87 KB	-rw-r--r--
ndb_bushy_joins.result	88.95 KB	-rw-r--r--
ndb_cache.result	9.35 KB	-rw-r--r--
ndb_cache2.result	13.9 KB	-rw-r--r--
ndb_cache_multi.result	2.44 KB	-rw-r--r--
ndb_cache_multi2.result	3.04 KB	-rw-r--r--
ndb_cache_trans.result	6.65 KB	-rw-r--r--
ndb_charset.result	5.77 KB	-rw-r--r--
ndb_checksum.result	38 B	-rw-r--r--
ndb_column_properties.result	16.01 KB	-rw-r--r--
ndb_condition_pushdown.result	131.71 KB	-rw-r--r--
ndb_config.result	3.36 KB	-rw-r--r--
ndb_config2.result	475 B	-rw-r--r--
ndb_create_table.result	1.02 KB	-rw-r--r--
ndb_cursor.result	792 B	-rw-r--r--
ndb_database.result	1.25 KB	-rw-r--r--
ndb_dbug_lock.result	1.64 KB	-rw-r--r--
ndb_dbug_tc_select.result	6.71 KB	-rw-r--r--
ndb_dd_alter.result	28.43 KB	-rw-r--r--
ndb_dd_basic.result	21.17 KB	-rw-r--r--
ndb_dd_bug12581213.result	334 B	-rw-r--r--
ndb_dd_ddl.result	5.94 KB	-rw-r--r--
ndb_dd_disk2memory.result	15.44 KB	-rw-r--r--
ndb_dd_dump.result	15.97 KB	-rw-r--r--
ndb_dd_initial_lg.result	941 B	-rw-r--r--
ndb_dd_restore_check_tablespac...	8.3 KB	-rw-r--r--
ndb_dd_restore_compat.result	3.73 KB	-rw-r--r--
ndb_dd_sql_features.result	22.62 KB	-rw-r--r--
ndb_ddl_open_trans.result	1.44 KB	-rw-r--r--
ndb_disconnect_ddl.result	291 B	-rw-r--r--
ndb_discover_db.result	1.92 KB	-rw-r--r--
ndb_dist_priv.result	6.36 KB	-rw-r--r--
ndb_dist_priv_bug_13340854.res...	248 B	-rw-r--r--
ndb_err4012.result	2.22 KB	-rw-r--r--
ndb_error_reporter.result	5.61 KB	-rw-r--r--
ndb_fired_trigger_shortage.res...	694 B	-rw-r--r--
ndb_fk_addnode.result	1.39 KB	-rw-r--r--
ndb_fk_alter.result	8.34 KB	-rw-r--r--
ndb_fk_bugs.result	27.58 KB	-rw-r--r--
ndb_fk_build.result	2.31 KB	-rw-r--r--
ndb_fk_cascade_delete.result	4.82 KB	-rw-r--r--
ndb_fk_cascade_delete_multi.re...	2.56 KB	-rw-r--r--
ndb_fk_cascade_update.result	1.66 KB	-rw-r--r--
ndb_fk_create_drop.result	4.8 KB	-rw-r--r--
ndb_fk_db.result	7.18 KB	-rw-r--r--
ndb_fk_deferred_cascade.result	2.82 KB	-rw-r--r--
ndb_fk_disable.result	11.64 KB	-rw-r--r--
ndb_fk_is.result	8.49 KB	-rw-r--r--
ndb_fk_locase.result	2.44 KB	-rw-r--r--
ndb_fk_locking.result	1.47 KB	-rw-r--r--
ndb_fk_multi_column.result	2.04 KB	-rw-r--r--
ndb_fk_mysqldump.result	2.93 KB	-rw-r--r--
ndb_fk_mysqldump2.result	72 B	-rw-r--r--
ndb_fk_no_fk.result	30.14 KB	-rw-r--r--
ndb_fk_no_fk_legacy.result	2.77 KB	-rw-r--r--
ndb_fk_noaction.result	5.68 KB	-rw-r--r--
ndb_fk_resources.result	2.58 KB	-rw-r--r--
ndb_fk_restore.result	14.08 KB	-rw-r--r--
ndb_fk_restrict.result	6.82 KB	-rw-r--r--
ndb_fk_self_ref.result	3.74 KB	-rw-r--r--
ndb_fk_setdefault.result	1.03 KB	-rw-r--r--
ndb_fk_setnull.result	3.23 KB	-rw-r--r--
ndb_global_schema_lock.result	3.6 KB	-rw-r--r--
ndb_global_schema_lock_error.r...	1.88 KB	-rw-r--r--
ndb_grant.result	17.65 KB	-rw-r--r--
ndb_hashmap.result	624 B	-rw-r--r--
ndb_hidden_pk.result	10.55 KB	-rw-r--r--
ndb_index.result	17.84 KB	-rw-r--r--
ndb_index_ordered.result	16.73 KB	-rw-r--r--
ndb_index_stat.result	17.74 KB	-rw-r--r--
ndb_index_stat_partitions.resu...	3.82 KB	-rw-r--r--
ndb_index_stat_restart.result	2.2 KB	-rw-r--r--
ndb_index_unique.result	20.29 KB	-rw-r--r--
ndb_insert.result	36.52 KB	-rw-r--r--
ndb_join_pushdown_bka.result	949.68 KB	-rw-r--r--
ndb_join_pushdown_default.resu...	865.61 KB	-rw-r--r--
ndb_join_pushdown_nobnl.result	864.87 KB	-rw-r--r--
ndb_join_pushdown_none.result	865.08 KB	-rw-r--r--
ndb_limit.result	1.99 KB	-rw-r--r--
ndb_load.result	2.66 KB	-rw-r--r--
ndb_loaddatalocal.result	1.57 KB	-rw-r--r--
ndb_lock.result	4.17 KB	-rw-r--r--
ndb_lock_table.result	205 B	-rw-r--r--
ndb_many_fragments.result	26.72 KB	-rw-r--r--
ndb_mgm.result	5.7 KB	-rw-r--r--
ndb_mgmd.result	198 B	-rw-r--r--
ndb_minmax.result	1.47 KB	-rw-r--r--
ndb_multi.result	8.83 KB	-rw-r--r--
ndb_multi_row.result	1.33 KB	-rw-r--r--
ndb_multi_update_delete.result	1.83 KB	-rw-r--r--
ndb_native_default_support.res...	50.29 KB	-rw-r--r--
ndb_one_fragment.result	4.05 KB	-rw-r--r--
ndb_optimize_table.result	2 KB	-rw-r--r--
ndb_optimized_node_selection.r...	1017 B	-rw-r--r--
ndb_partition_error.result	1.44 KB	-rw-r--r--
ndb_partition_error2.result	150 B	-rw-r--r--
ndb_partition_hash.result	890 B	-rw-r--r--
ndb_partition_key.result	8.82 KB	-rw-r--r--
ndb_partition_list.result	2.31 KB	-rw-r--r--
ndb_partition_range.result	7.91 KB	-rw-r--r--
ndb_print_file.result	709 B	-rw-r--r--
ndb_rbwr.result	0 B	-rw-r--r--
ndb_read_multi_range.result	15 KB	-rw-r--r--
ndb_reconnect.result	1.7 KB	-rw-r--r--
ndb_rename.result	910 B	-rw-r--r--
ndb_replace.result	3.64 KB	-rw-r--r--
ndb_restore_bug17916243.result	537 B	-rw-r--r--
ndb_restore_compat_downward.re...	132.43 KB	-rw-r--r--
ndb_restore_compat_endianness....	10.97 KB	-rw-r--r--
ndb_restore_conv_lossy_charbin...	15.46 KB	-rw-r--r--
ndb_restore_conv_lossy_integra...	20.72 KB	-rw-r--r--
ndb_restore_conv_more.result	56.57 KB	-rw-r--r--
ndb_restore_conv_padding.resul...	6.14 KB	-rw-r--r--
ndb_restore_conv_promotion.res...	23.26 KB	-rw-r--r--
ndb_restore_discover.result	540 B	-rw-r--r--
ndb_restore_misc.result	25.16 KB	-rw-r--r--
ndb_restore_print.result	9.8 KB	-rw-r--r--
ndb_restore_schema_blobs.resul...	6.44 KB	-rw-r--r--
ndb_restore_schema_partitions....	13.25 KB	-rw-r--r--
ndb_restore_schema_rewrites.re...	12.22 KB	-rw-r--r--
ndb_restore_schema_subsets.res...	95.9 KB	-rw-r--r--
ndb_restore_schema_tolerance.r...	4.53 KB	-rw-r--r--
ndb_restore_undolog.result	18.76 KB	-rw-r--r--
ndb_row_count.result	5.19 KB	-rw-r--r--
ndb_row_format.result	1.74 KB	-rw-r--r--
ndb_select_count.result	334 B	-rw-r--r--
ndb_share.result	11.29 KB	-rw-r--r--
ndb_short_sigs.result	2.54 KB	-rw-r--r--
ndb_single_user.result	4.01 KB	-rw-r--r--
ndb_sp.result	1.17 KB	-rw-r--r--
ndb_spj_dict.result	11.63 KB	-rw-r--r--
ndb_sql_allow_batching.result	918 B	-rw-r--r--
ndb_startup.result	358 B	-rw-r--r--
ndb_statistics0.result	16.23 KB	-rw-r--r--
ndb_statistics1.result	15.99 KB	-rw-r--r--
ndb_subquery.result	9.29 KB	-rw-r--r--
ndb_suma_handover.result	427 B	-rw-r--r--
ndb_temporary.result	949 B	-rw-r--r--
ndb_tmp_table_and_DDL.result	3.11 KB	-rw-r--r--
ndb_transaction.result	4.62 KB	-rw-r--r--
ndb_trigger.result	9.38 KB	-rw-r--r--
ndb_truncate.result	425 B	-rw-r--r--
ndb_types.result	4.91 KB	-rw-r--r--
ndb_update.result	2.97 KB	-rw-r--r--
ndb_update_no_read.result	11.23 KB	-rw-r--r--
ndb_view.result	597 B	-rw-r--r--
ndb_wait_until_ready.result	533 B	-rw-r--r--
ndb_wl946_main.result	19.39 KB	-rw-r--r--
ndb_wl946_post.result	3.7 KB	-rw-r--r--
ndb_wl946_pre.result	6.62 KB	-rw-r--r--
ndbapi-examples.result	3.34 KB	-rw-r--r--
ndbinfo.result	44.04 KB	-rw-r--r--
ndbinfo_cache.result	775 B	-rw-r--r--
ndbinfo_dump.result	95 B	-rw-r--r--
ndbinfo_upgrade.result	382 B	-rw-r--r--
ps_7ndb.result	103.05 KB	-rw-r--r--
strict_autoinc_5ndb.result	894 B	-rw-r--r--
wl10837.result	524 B	-rw-r--r--

Code Editor : ndb_fk_disable.result

create table parent (
a int primary key auto_increment,
b int not null,
c int not null,
unique(b) using hash,
index(c)) engine = ndb;
create table child (
a int primary key auto_increment,
b int not null,
c int not null,
unique(b) using hash,
index(c)) engine = ndb;
alter table child add constraint fkname foreign key (a) references parent(a) on delete restrict on update restrict;
insert into parent values (1,1,1);
insert into child values (1,1,1);
insert into child values (2,2,2);
ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code)
# Disabling foreign key checks
set foreign_key_checks = 0;
insert into child values (2,2,2);
select * from child order by 1,2,3;
a	b	c
1	1	1
2	2	2
set foreign_key_checks = 1;
begin;
delete from parent;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (Unknown error code)
rollback;
# Disabling foreign key checks
set foreign_key_checks = 0;
begin;
delete from parent;
rollback;
delete from child;
delete from parent;
set foreign_key_checks = 1;
begin;
insert into child values (2,2,2);
ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code)
rollback;
# Disabling foreign key checks
set foreign_key_checks = 0;
begin;
insert into child values (2,2,2);
rollback;
set foreign_key_checks = 1;
delete from child;
delete from parent;
insert into parent values (1,1,1);
begin;
insert into child values (1,1,1);
begin;
delete from parent;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
commit;
commit;
delete from child;
delete from parent;
# Disabling foreign key checks
set foreign_key_checks = 0;
insert into parent values (1,1,1);
# Disabling foreign key checks
set foreign_key_checks = 0;
begin;
insert into child values (1,1,1);
# Disabling foreign key checks
set foreign_key_checks = 0;
begin;
delete from parent;
commit;
set foreign_key_checks = 1;
commit;
set foreign_key_checks = 1;
select * from parent order by 1,2,3;
a	b	c
select * from child order by 1,2,3;
a	b	c
1	1	1
delete from child;
delete from parent;
set foreign_key_checks = 0;
insert into parent values (1,1,1);
insert into parent values (1,1,1);
ERROR 23000: Duplicate entry '1' for key 'PRIMARY'
insert into parent values (2,1,1);
ERROR 23000: Duplicate entry '1' for key 'b'
delete from child;
delete from parent;
insert into parent values (1,1,1);
insert into child values (1,1,1);
set ndb_deferred_constraints = 1;
set foreign_key_checks = 1;
set foreign_key_checks = 0;
begin;
set foreign_key_checks = 1;
insert into child values (2,2,2);
commit;
ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code)
begin;
insert into child values (2,2,2);
set foreign_key_checks = 0;
commit;
ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code)
begin;
insert into child values (2,2,2);
set foreign_key_checks = 1;
commit;
begin;
insert into child values (3,3,3);
insert into child values (4,4,4);
set foreign_key_checks = 0;
insert into parent values (3,3,3);
commit;
ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code)
set foreign_key_checks = 1;
begin;
insert into child values (3,3,3);
set foreign_key_checks = 0;
insert into parent values (3,3,3);
insert into child values (4,4,4);
commit;
set foreign_key_checks = 1;
set ndb_deferred_constraints = 0;
alter table child drop foreign key fkname;
delete from child;
delete from parent;
alter table child add constraint fkname foreign key (a) references parent(a) on delete no action on update no action;
insert into parent values (1,1,1);
insert into child values (1,1,1);
insert into child values (2,2,2);
ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code)
insert into parent values (2,2,2);
insert into child values (2,2,2);
begin;
update parent set a = a + 2;
commit;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (Unknown error code)
select * from parent order by 1,2,3;
a	b	c
1	1	1
2	2	2
select * from child order by 1,2,3;
a	b	c
1	1	1
2	2	2
# Disabling foreign key checks
set foreign_key_checks = 0;
insert into child values (3,3,3);
insert into parent values (3,3,3);
begin;
update parent set a = a + 3;
commit;
select * from parent order by 1,2,3;
a	b	c
4	1	1
5	2	2
6	3	3
select * from child order by 1,2,3;
a	b	c
1	1	1
2	2	2
3	3	3
set foreign_key_checks = 1;
alter table child drop foreign key fkname;
delete from child;
delete from parent;
alter table child add constraint fkname foreign key (a) references parent (a) on delete cascade on update restrict;
create table grandchild (
a int primary key auto_increment,
b int not null,
c int not null,
unique(b) using hash,
index(c)) engine = ndb;
alter table grandchild add constraint fkname foreign key (a) references child (a) on delete cascade on update restrict;
insert into parent values (1,1,1),(2,2,2);
insert into child values (1,1,1),(2,2,2);
insert into grandchild values (1,1,1),(2,2,2);
begin;
delete from parent where a = 1;
select * from child order by 1,2,3;
a	b	c
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
2	2	2
commit;
# Disabling foreign key checks
set foreign_key_checks = 0;
begin;
delete from parent where a = 2;
select * from child order by 1,2,3;
a	b	c
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
2	2	2
commit;
set foreign_key_checks = 1;
alter table child drop foreign key fkname;
alter table grandchild drop foreign key fkname;
delete from grandchild;
delete from child;
delete from parent;
alter table child add constraint fkname foreign key (b) references parent(b) on delete restrict on update cascade;
alter table grandchild add constraint fkname foreign key (b) references child(b) on delete restrict on update cascade;
insert into parent values (1,1,1), (2,2,2);
insert into child values (1,1,1),(2,2,2);
insert into grandchild values (1,1,1),(2,2,2);
begin;
update parent set b = 3 where a = 1;
select * from child order by 1,2,3;
a	b	c
1	3	1
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
1	3	1
2	2	2
rollback;
# Disabling foreign key checks
set foreign_key_checks = 0;
begin;
update parent set b = 3 where a = 1;
select * from child order by 1,2,3;
a	b	c
1	1	1
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
1	1	1
2	2	2
rollback;
set foreign_key_checks = 1;
alter table child drop foreign key fkname;
alter table grandchild drop foreign key fkname;
delete from grandchild;
delete from child;
delete from parent;
alter table child add constraint fkname foreign key (a) references parent (a) on delete cascade on update restrict;
alter table grandchild add constraint fkname foreign key (a) references child (a) on delete cascade on update restrict;
set ndb_deferred_constraints = 1;
insert into parent values (1,1,1), (2,2,2);
insert into child values (1,1,1),(2,2,2);
insert into grandchild values (1,1,1),(2,2,2);
begin;
# Disabling foreign key checks
set foreign_key_checks = 0;
delete from parent where a = 1;
select * from child order by 1,2,3;
a	b	c
1	1	1
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
1	1	1
2	2	2
commit;
select * from child order by 1,2,3;
a	b	c
1	1	1
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
1	1	1
2	2	2
delete from grandchild;
delete from child;
delete from parent;
insert into parent values (1,1,1), (2,2,2);
insert into child values (1,1,1),(2,2,2);
insert into grandchild values (1,1,1),(2,2,2);
set foreign_key_checks = 1;
begin;
delete from parent where a = 1;
# Disabling foreign key checks
set foreign_key_checks = 0;
select * from child order by 1,2,3;
a	b	c
1	1	1
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
1	1	1
2	2	2
commit;
select * from child order by 1,2,3;
a	b	c
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
2	2	2
set ndb_deferred_constraints = 0;
set foreign_key_checks = 1;
alter table child drop foreign key fkname;
alter table grandchild drop foreign key fkname;
delete from grandchild;
delete from child;
delete from parent;
alter table child add constraint fkname foreign key (b) references parent(b) on delete restrict on update cascade;
alter table grandchild add constraint fkname foreign key (b) references child(b) on delete restrict on update cascade;
set ndb_deferred_constraints = 1;
insert into parent values (1,1,1), (2,2,2);
insert into child values (1,1,1),(2,2,2);
insert into grandchild values (1,1,1),(2,2,2);
begin;
# Disabling foreign key checks
set foreign_key_checks = 0;
update parent set b = 3 where a = 1;
select * from child order by 1,2,3;
a	b	c
1	1	1
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
1	1	1
2	2	2
commit;
select * from child order by 1,2,3;
a	b	c
1	1	1
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
1	1	1
2	2	2
delete from grandchild;
delete from child;
delete from parent;
insert into parent values (1,1,1), (2,2,2);
insert into child values (1,1,1),(2,2,2);
insert into grandchild values (1,1,1),(2,2,2);
set foreign_key_checks = 1;
begin;
update parent set b = 3 where a = 1;
# Disabling foreign key checks
set foreign_key_checks = 0;
select * from child order by 1,2,3;
a	b	c
1	1	1
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
1	1	1
2	2	2
commit;
select * from child order by 1,2,3;
a	b	c
1	3	1
2	2	2
select * from grandchild order by 1,2,3;
a	b	c
1	3	1
2	2	2
set ndb_deferred_constraints = 0;
set foreign_key_checks = 1;
alter table child drop foreign key fkname;
alter table grandchild drop foreign key fkname;
delete from grandchild;
delete from child;
delete from parent;
drop table parent, child, grandchild;
set @save_ndb_join_pushdown = @@session.ndb_join_pushdown;
set ndb_join_pushdown = true;
create table t1 (
a int not null,
b int not null,
c int,
d int not null,
primary key (a),
unique (b),
unique (c),
unique (d)
) engine=ndb;
create table t2 (
a int not null,
b int not null,
c int,
d int,
primary key (a)
) engine=ndb;
alter table t2 add constraint fa foreign key (a) references t1 (a) on delete cascade on update restrict;
alter table t2 add constraint fb foreign key (b) references t1 (b) on delete cascade on update restrict;
alter table t2 add constraint fc foreign key (c) references t1 (c) on delete cascade on update restrict;
alter table t2 add constraint fd foreign key (d) references t1 (d) on delete cascade on update restrict;
insert into t1 values
(1,1,1,1), (2,2,2,2), (3,3,3,3), (4,4,4,4), (5,5,5,5), (6,6,6,6);
insert into t2 values
(1,1,1,1), (2,2,2,2), (3,3,3,3), (4,4,4,4), (5,5,5,5), (6,6,6,6);
update t1 set b = 17 where c > 5;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (Unknown error code)
update t1 set c = null where c = 2;
ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (Unknown error code)
select *
from t1,t2
where t2.a = t1.b and t2.b = t1.c;
a	b	c	d	a	b	c	d
1	1	1	1	1	1	1	1
2	2	2	2	2	2	2	2
3	3	3	3	3	3	3	3
4	4	4	4	4	4	4	4
5	5	5	5	5	5	5	5
6	6	6	6	6	6	6	6
delete from t1 where d = 3;
select * from t2 order by a;
a	b	c	d
1	1	1	1
2	2	2	2
4	4	4	4
5	5	5	5
6	6	6	6
select *
from t1,t2
where t2.a = t1.b + 1;
a	b	c	d	a	b	c	d
1	1	1	1	2	2	2	2
4	4	4	4	5	5	5	5
5	5	5	5	6	6	6	6
insert into t1 values (3,3,3,3);
insert into t2 values (3,3,3,3);
# Disabling foreign key checks
set foreign_key_checks = 0;
update t1 set b = 17 where c > 5;
update t1 set c = null where c = 2;
select *
from t1,t2
where t2.a = t1.b and t2.b = t1.c;
a	b	c	d	a	b	c	d
1	1	1	1	1	1	1	1
3	3	3	3	3	3	3	3
4	4	4	4	4	4	4	4
5	5	5	5	5	5	5	5
select * from t2 order by a;
a	b	c	d
1	1	1	1
2	2	2	2
3	3	3	3
4	4	4	4
5	5	5	5
6	6	6	6
delete from t1 where d = 3;
select * from t2 order by a;
a	b	c	d
1	1	1	1
2	2	2	2
3	3	3	3
4	4	4	4
5	5	5	5
6	6	6	6
select *
from t1,t2
where t2.a = t1.b + 1;
a	b	c	d	a	b	c	d
1	1	1	1	2	2	2	2
2	2	NULL	2	3	3	3	3
4	4	4	4	5	5	5	5
5	5	5	5	6	6	6	6
drop table t2, t1;
set ndb_join_pushdown = @save_ndb_join_pushdown;
set foreign_key_checks = 1;

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Code Editor : ndb_fk_disable.result