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_index_unique.result

drop table if exists t1, t2, t3, t4, t5, t6, t7, t8;
CREATE TABLE t1 (
a int NOT NULL PRIMARY KEY,
b int not null,
c int,
UNIQUE ib(b)
) engine=ndbcluster;
insert t1 values(1, 2, 3), (2, 3, 5), (3, 4, 6), (4, 5, 8), (5,6, 2), (6,7, 2);
select * from t1 order by b;
a	b	c
1	2	3
2	3	5
3	4	6
4	5	8
5	6	2
6	7	2
select * from t1 where b = 4 order by b;
a	b	c
3	4	6
insert into t1 values(7,8,3);
select * from t1 where b = 4 order by a;
a	b	c
3	4	6
insert into t1 values(8, 2, 3);
ERROR 23000: Duplicate entry '2' for key 'ib'
select * from t1 order by a;
a	b	c
1	2	3
2	3	5
3	4	6
4	5	8
5	6	2
6	7	2
7	8	3
delete from t1 where a = 1;
insert into t1 values(8, 2, 3);
select * from t1 order by a;
a	b	c
2	3	5
3	4	6
4	5	8
5	6	2
6	7	2
7	8	3
8	2	3
alter table t1 drop index ib;
insert into t1 values(1, 2, 3);
create unique index ib on t1(b);
ERROR 23000: Can't write, because of unique constraint, to table 't1'
drop table t1;
CREATE TABLE t1 (
a int unsigned NOT NULL PRIMARY KEY,
b int unsigned,
c int unsigned,
UNIQUE bc(b,c)
) engine = ndb;
insert into t1 values(1,1,1),(2,NULL,2),(3,NULL,NULL),(4,4,NULL);
select * from t1 use index (bc) where b IS NULL order by a;
a	b	c
2	NULL	2
3	NULL	NULL
select * from t1 use index (bc)order by a;
a	b	c
1	1	1
2	NULL	2
3	NULL	NULL
4	4	NULL
select * from t1 use index (bc) order by a;
a	b	c
1	1	1
2	NULL	2
3	NULL	NULL
4	4	NULL
select * from t1 use index (PRIMARY) where b IS NULL order by a;
a	b	c
2	NULL	2
3	NULL	NULL
select * from t1 use index (bc) where b IS NULL order by a;
a	b	c
2	NULL	2
3	NULL	NULL
select * from t1 use index (bc) where b IS NULL and c IS NULL order by a;
a	b	c
3	NULL	NULL
select * from t1 use index (bc) where b IS NULL and c = 2 order by a;
a	b	c
2	NULL	2
select * from t1 use index (bc) where b < 4 order by a;
a	b	c
1	1	1
select * from t1 use index (bc) where b IS NOT NULL order by a;
a	b	c
1	1	1
4	4	NULL
insert into t1 values(5,1,1);
ERROR 23000: Duplicate entry '1-1' for key 'bc'
drop table t1;
CREATE TABLE t2 (
a int unsigned NOT NULL PRIMARY KEY,
b int unsigned not null,
c int unsigned not null,
UNIQUE (b, c) USING HASH	
) engine=ndbcluster;
insert t2 values(1, 2, 3), (2, 3, 5), (3, 4, 6), (4, 5, 8), (5,6, 2), (6,7, 2);
select * from t2 where a = 3;
a	b	c
3	4	6
select * from t2 where b = 4;
a	b	c
3	4	6
select * from t2 where c = 6;
a	b	c
3	4	6
insert into t2 values(7,8,3);
select * from t2 where b = 4 order by a;
a	b	c
3	4	6
insert into t2 values(8, 2, 3);
ERROR 23000: Duplicate entry '2-3' for key 'b'
select * from t2 order by a;
a	b	c
1	2	3
2	3	5
3	4	6
4	5	8
5	6	2
6	7	2
7	8	3
delete from t2 where a = 1;
insert into t2 values(8, 2, 3);
select * from t2 order by a;
a	b	c
2	3	5
3	4	6
4	5	8
5	6	2
6	7	2
7	8	3
8	2	3
create unique index bi using hash on t2(b);
insert into t2 values(9, 3, 1);
ERROR 23000: Duplicate entry '3' for key 'bi'
alter table t2 drop index bi;
insert into t2 values(9, 3, 1);
select * from t2 order by a;
a	b	c
2	3	5
3	4	6
4	5	8
5	6	2
6	7	2
7	8	3
8	2	3
9	3	1
drop table t2;
CREATE TABLE t2 (
a int unsigned NOT NULL PRIMARY KEY,
b int unsigned not null,
c int unsigned,
UNIQUE (b, c) USING HASH	
) engine=ndbcluster;
Warnings:
Warning	1121	Ndb does not support unique index on NULL valued attributes, index access with NULL value will become full table scan
insert t2 values(1,1,NULL),(2,2,2),(3,3,NULL),(4,4,4),(5,5,NULL),(6,6,6),(7,7,NULL),(8,3,NULL),(9,3,NULL);
select * from t2 where c IS NULL order by a;
a	b	c
1	1	NULL
3	3	NULL
5	5	NULL
7	7	NULL
8	3	NULL
9	3	NULL
select * from t2 where b = 3 AND c IS NULL order by a;
a	b	c
3	3	NULL
8	3	NULL
9	3	NULL
select * from t2 where (b = 3 OR b = 5) AND c IS NULL order by a;
a	b	c
3	3	NULL
5	5	NULL
8	3	NULL
9	3	NULL
set @old_os = @@session.optimizer_switch;
set optimizer_switch = 'engine_condition_pushdown=on';
explain select * from t2 where (b = 3 OR b = 5) AND c IS NULL AND a < 9 order by a;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t2	p0,p1,p2,p3,p4,p5,p6,p7	range	PRIMARY,b	b	9	NULL	#	#	Using where with pushed condition (((`test`.`t2`.`b` = 3) or (`test`.`t2`.`b` = 5)) and isnull(`test`.`t2`.`c`) and (`test`.`t2`.`a` < 9)); Using filesort
Warnings:
Note	1003	/* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where (((`test`.`t2`.`b` = 3) or (`test`.`t2`.`b` = 5)) and isnull(`test`.`t2`.`c`) and (`test`.`t2`.`a` < 9)) order by `test`.`t2`.`a`
select * from t2 where (b = 3 OR b = 5) AND c IS NULL AND a < 9 order by a;
a	b	c
3	3	NULL
5	5	NULL
8	3	NULL
set optimizer_switch = @old_os;
drop table t2;
CREATE TABLE t3 (
a int unsigned NOT NULL,
b int unsigned not null,
c int unsigned,
PRIMARY KEY (a, b) USING HASH         
) engine=ndbcluster;
insert t3 values(1, 2, 3), (2, 3, 5), (3, 4, 6), (4, 5, 8), (5,6, 2), (6,7, 2);
select * from t3 where a = 3;
a	b	c
3	4	6
select * from t3 where b = 4;
a	b	c
3	4	6
select * from t3 where c = 6;
a	b	c
3	4	6
insert into t3 values(7,8,3);
select * from t3 where b = 4 order by a;
a	b	c
3	4	6
drop table t3;
CREATE TABLE t1 (
pk int NOT NULL PRIMARY KEY,
a int unsigned,
UNIQUE KEY (a)
) engine=ndbcluster;
insert into t1 values (-1,NULL), (0,0), (1,NULL),(2,2),(3,NULL),(4,4);
select * from t1 order by pk;
pk	a
-1	NULL
0	0
1	NULL
2	2
3	NULL
4	4
insert into t1 values (5,0);
ERROR 23000: Duplicate entry '0' for key 'a'
select * from t1 order by pk;
pk	a
-1	NULL
0	0
1	NULL
2	2
3	NULL
4	4
delete from t1 where a = 0;
insert into t1 values (5,0);
select * from t1 order by pk;
pk	a
-1	NULL
1	NULL
2	2
3	NULL
4	4
5	0
CREATE TABLE t2 (
pk int NOT NULL PRIMARY KEY,
a int unsigned,
b tinyint NOT NULL,
c VARCHAR(10),
UNIQUE KEY si(a, c)
) engine=ndbcluster;
insert into t2 values (-1,1,17,NULL),(0,NULL,18,NULL),(1,3,19,'abc');
select * from t2 order by pk;
pk	a	b	c
-1	1	17	NULL
0	NULL	18	NULL
1	3	19	abc
insert into t2 values(2,3,19,'abc');
ERROR 23000: Duplicate entry '3-abc' for key 'si'
select * from t2 order by pk;
pk	a	b	c
-1	1	17	NULL
0	NULL	18	NULL
1	3	19	abc
delete from t2 where c IS NOT NULL;
insert into t2 values(2,3,19,'abc');
select * from t2 order by pk;
pk	a	b	c
-1	1	17	NULL
0	NULL	18	NULL
2	3	19	abc
drop table t1, t2;
CREATE TABLE t1 (
cid smallint(5) unsigned NOT NULL default '0',
cv varchar(250) NOT NULL default '',
PRIMARY KEY  (cid),
UNIQUE KEY cv (cv)
) engine=ndbcluster;
INSERT INTO t1 VALUES (8,'dummy');
CREATE TABLE t2 (
cid bigint(20) unsigned NOT NULL auto_increment,
cap varchar(255) NOT NULL default '',
PRIMARY KEY  (cid),
UNIQUE KEY (cid, cap)
) engine=ndbcluster;
INSERT INTO t2 VALUES (NULL,'another dummy');
CREATE TABLE t3 (
gid bigint(20) unsigned NOT NULL auto_increment,
gn varchar(255) NOT NULL default '',
must tinyint(4) default NULL,
PRIMARY KEY  (gid)
) engine=ndbcluster;
INSERT INTO t3 VALUES (1,'V1',NULL);
CREATE TABLE t4 (
uid bigint(20) unsigned NOT NULL default '0',
gid bigint(20) unsigned NOT NULL,
rid bigint(20) unsigned NOT NULL,
cid bigint(20) unsigned NOT NULL,
UNIQUE KEY m (uid,gid,rid,cid)
) engine=ndbcluster;
INSERT INTO t4 VALUES (1,1,2,4);
INSERT INTO t4 VALUES (1,1,2,3);
INSERT INTO t4 VALUES (1,1,5,7);
INSERT INTO t4 VALUES (1,1,10,8);
CREATE TABLE t5 (
rid bigint(20) unsigned NOT NULL auto_increment,
rl varchar(255) NOT NULL default '',
PRIMARY KEY  (rid)
) engine=ndbcluster;
CREATE TABLE t6 (
uid bigint(20) unsigned NOT NULL auto_increment,
un varchar(250) NOT NULL default '',
uc smallint(5) unsigned NOT NULL default '0',
PRIMARY KEY  (uid),
UNIQUE KEY nc (un,uc)
) engine=ndbcluster;
INSERT INTO t6 VALUES (1,'test',8);
INSERT INTO t6 VALUES (2,'test2',9);
INSERT INTO t6 VALUES (3,'tre',3);
CREATE TABLE t7 (
mid bigint(20) unsigned NOT NULL PRIMARY KEY,
uid bigint(20) unsigned NOT NULL default '0',
gid bigint(20) unsigned NOT NULL,
rid bigint(20) unsigned NOT NULL,
cid bigint(20) unsigned NOT NULL,
UNIQUE KEY m (uid,gid,rid,cid)
) engine=ndbcluster;
INSERT INTO t7 VALUES(1, 1, 1, 1, 1);
INSERT INTO t7 VALUES(2, 2, 1, 1, 1);
INSERT INTO t7 VALUES(3, 3, 1, 1, 1);
INSERT INTO t7 VALUES(4, 4, 1, 1, 1);
INSERT INTO t7 VALUES(5, 5, 1, 1, 1);
INSERT INTO t7 VALUES(6, 1, 1, 1, 6);
INSERT INTO t7 VALUES(7, 2, 1, 1, 7);
INSERT INTO t7 VALUES(8, 3, 1, 1, 8);
INSERT INTO t7 VALUES(9, 4, 1, 1, 9);
INSERT INTO t7 VALUES(10, 5, 1, 1, 10);
select * from t1 where cv = 'dummy';
cid	cv
8	dummy
select * from t1 where cv = 'test';
cid	cv
select * from t2 where cap = 'another dummy';
cid	cap
1	another dummy
select * from t4 where uid = 1 and gid=1 and rid=2 and cid=4;
uid	gid	rid	cid
1	1	2	4
select * from t4 where uid = 1 and gid=1 and rid=1 and cid=4;
uid	gid	rid	cid
select * from t4 where uid = 1 order by cid;
uid	gid	rid	cid
1	1	2	3
1	1	2	4
1	1	5	7
1	1	10	8
select * from t4 where rid = 2 order by cid;
uid	gid	rid	cid
1	1	2	3
1	1	2	4
select * from t6 where un='test' and uc=8;
uid	un	uc
1	test	8
select * from t6 where un='test' and uc=7;
uid	un	uc
select * from t6 where un='test';
uid	un	uc
1	test	8
select * from t7 where mid = 8;
mid	uid	gid	rid	cid
8	3	1	1	8
select * from t7 where uid = 8;
mid	uid	gid	rid	cid
select * from t7 where uid = 1 order by mid;
mid	uid	gid	rid	cid
1	1	1	1	1
6	1	1	1	6
select * from t7 where uid = 4 order by mid;
mid	uid	gid	rid	cid
4	4	1	1	1
9	4	1	1	9
select * from t7 where gid = 4;
mid	uid	gid	rid	cid
select * from t7 where gid = 1 order by mid;
mid	uid	gid	rid	cid
1	1	1	1	1
2	2	1	1	1
3	3	1	1	1
4	4	1	1	1
5	5	1	1	1
6	1	1	1	6
7	2	1	1	7
8	3	1	1	8
9	4	1	1	9
10	5	1	1	10
select * from t7 where cid = 4;
mid	uid	gid	rid	cid
select * from t7 where cid = 8;
mid	uid	gid	rid	cid
8	3	1	1	8
select * from t4 where uid = 1 and gid=1 and rid=2 and cid=4;
uid	gid	rid	cid
1	1	2	4
select * from t4 where uid = 1 and gid=1 and rid=1 and cid=4;
uid	gid	rid	cid
select * from t4 where uid = 1 order by gid,cid;
uid	gid	rid	cid
1	1	2	3
1	1	2	4
1	1	5	7
1	1	10	8
1	1	5	12
1	2	5	12
1	3	9	11
1	3	5	12
1	4	5	12
1	5	5	12
1	6	5	12
1	7	5	12
1	8	5	12
1	9	5	12
1	10	5	12
1	11	5	12
1	12	5	12
1	13	5	12
1	14	5	12
1	15	5	12
1	16	5	12
1	17	5	12
1	18	5	12
1	19	5	12
1	20	5	12
1	21	5	12
1	22	5	12
1	23	5	12
1	24	5	12
1	25	5	12
1	26	5	12
1	27	5	12
1	28	5	12
1	29	5	12
1	30	5	12
1	31	5	12
1	32	5	12
1	33	5	12
1	34	5	12
1	35	5	12
1	36	5	12
1	37	5	12
1	38	5	12
1	39	5	12
1	40	5	12
1	41	5	12
1	42	5	12
1	43	5	12
1	44	5	12
1	45	5	12
1	46	5	12
1	47	5	12
1	48	5	12
1	49	5	12
1	50	5	12
1	51	5	12
1	52	5	12
1	53	5	12
1	54	5	12
1	55	5	12
1	56	5	12
1	57	5	12
1	58	5	12
1	59	5	12
1	60	5	12
1	61	5	12
1	62	5	12
1	63	5	12
1	64	5	12
1	65	5	12
1	66	5	12
1	67	5	12
1	68	5	12
1	69	5	12
1	70	5	12
1	71	5	12
1	72	5	12
1	73	5	12
1	74	5	12
1	75	5	12
1	76	5	12
1	77	5	12
1	78	5	12
1	79	5	12
1	80	5	12
1	81	5	12
1	82	5	12
1	83	5	12
1	84	5	12
1	85	5	12
1	86	5	12
1	87	5	12
1	88	5	12
1	89	5	12
1	90	5	12
1	91	5	12
1	92	5	12
1	93	5	12
1	94	5	12
1	95	5	12
1	96	5	12
1	97	5	12
1	98	5	12
1	99	5	12
1	100	5	12
select * from t4 where uid = 1 order by gid,cid;
uid	gid	rid	cid
1	1	2	3
1	1	2	4
1	1	5	7
1	1	10	8
1	1	5	12
1	2	5	12
1	3	9	11
1	3	5	12
1	4	5	12
1	5	5	12
1	6	5	12
1	7	5	12
1	8	5	12
1	9	5	12
1	10	5	12
1	11	5	12
1	12	5	12
1	13	5	12
1	14	5	12
1	15	5	12
1	16	5	12
1	17	5	12
1	18	5	12
1	19	5	12
1	20	5	12
1	21	5	12
1	22	5	12
1	23	5	12
1	24	5	12
1	25	5	12
1	26	5	12
1	27	5	12
1	28	5	12
1	29	5	12
1	30	5	12
1	31	5	12
1	32	5	12
1	33	5	12
1	34	5	12
1	35	5	12
1	36	5	12
1	37	5	12
1	38	5	12
1	39	5	12
1	40	5	12
1	41	5	12
1	42	5	12
1	43	5	12
1	44	5	12
1	45	5	12
1	46	5	12
1	47	5	12
1	48	5	12
1	49	5	12
1	50	5	12
1	51	5	12
1	52	5	12
1	53	5	12
1	54	5	12
1	55	5	12
1	56	5	12
1	57	5	12
1	58	5	12
1	59	5	12
1	60	5	12
1	61	5	12
1	62	5	12
1	63	5	12
1	64	5	12
1	65	5	12
1	66	5	12
1	67	5	12
1	68	5	12
1	69	5	12
1	70	5	12
1	71	5	12
1	72	5	12
1	73	5	12
1	74	5	12
1	75	5	12
1	76	5	12
1	77	5	12
1	78	5	12
1	79	5	12
1	80	5	12
1	81	5	12
1	82	5	12
1	83	5	12
1	84	5	12
1	85	5	12
1	86	5	12
1	87	5	12
1	88	5	12
1	89	5	12
1	90	5	12
1	91	5	12
1	92	5	12
1	93	5	12
1	94	5	12
1	95	5	12
1	96	5	12
1	97	5	12
1	98	5	12
1	99	5	12
1	100	5	12
select * from t4 where rid = 2 order by cid;
uid	gid	rid	cid
1	1	2	3
1	1	2	4
drop table t1,t2,t3,t4,t5,t6,t7;
CREATE TABLE t1 (   
a int unsigned NOT NULL PRIMARY KEY,
b int unsigned,   
c int unsigned, 
UNIQUE bc(b,c) ) engine = ndb;
insert into t1 values(1,1,1),(2,NULL,2),(3,NULL,NULL),(4,4,NULL);
select * from t1 where b=1 and c=1;
a	b	c
1	1	1
select * from t1 where b is null and c is null;
a	b	c
3	NULL	NULL
select * from t1 where b is null and c = 2;
a	b	c
2	NULL	2
select * from t1 where b = 4 and c is null;
a	b	c
4	4	NULL
create table t8 as 
select * from t1 where (b = 1 and c = 1)
or (b is null and c is null) 
or (b is null and c = 2)
or (b = 4 and c is null);
select * from t8 order by a;
a	b	c
1	1	1
2	NULL	2
3	NULL	NULL
4	4	NULL
select * from t1 order by a;
a	b	c
1	1	1
2	NULL	2
3	NULL	NULL
4	4	NULL
drop table t1, t8;
create table t1(
id integer not null auto_increment,
month integer not null,
year integer not null,
code varchar( 2) not null,
primary key ( id),
unique idx_t1( month, code, year)
) engine=ndb;
INSERT INTO t1 (month, year, code) VALUES (4,2004,'12');
INSERT INTO t1 (month, year, code) VALUES (5,2004,'12');
select * from t1 where code = '12' and month = 4 and year = 2004 ;
id	month	year	code
1	4	2004	12
drop table t1;
create table t1 (a int primary key, b varchar(1000) not null, unique key (b))
engine=ndb charset=utf8;
insert into t1 values (1, repeat(_utf8 0xe288ab6474, 200));
insert into t1 values (2, repeat(_utf8 0xe288ab6474, 200));
ERROR 23000: Duplicate entry '\222Bdt\222Bdt\222Bdt\222Bdt\222Bdt\222Bdt\222Bdt\222Bdt\222Bdt\222Bdt\222Bdt\222Bdt\222Bd' for key 'b'
select a, sha1(b) from t1;
a	sha1(b)
1	08f5d02c8b8bc244f275bdfc22c42c5cab0d9d7d
drop table t1;
create table t1(id int not null) engine = NDB;
alter table t1 add constraint uk_test unique (id) using hash;
drop table t1;
CREATE TABLE t1 (
pk0 INT,
pk1 VARCHAR(100),
col0 INT NOT NULL,
PRIMARY KEY(pk0, pk1),
UNIQUE (col0) USING HASH
) engine = ndb;
CREATE TABLE t2 (
pk0 VARCHAR(100),
pk1 INT,
col0 INT NOT NULL,
PRIMARY KEY(pk0, pk1),
UNIQUE (col0) USING HASH
) engine = ndb;
drop table t1, t2;
CREATE LOGFILE GROUP lg1
ADD UNDOFILE 'undofile.dat'
INITIAL_SIZE 8M
UNDO_BUFFER_SIZE = 1M engine=ndb;
CREATE TABLESPACE ts1
ADD DATAFILE 'datafile.dat'
USE LOGFILE GROUP lg1
INITIAL_SIZE 32M
ENGINE NDB;
use test;
create table t1 (pk int primary key, un int, data varchar(500) storage disk) tablespace ts1 engine=ndb;
insert into t1 values 
(1,1,repeat('B', 500)),
(2,2,repeat('B', 500)),
(3,3,repeat('B', 500)),
(4,4,repeat('B', 500)),
(5,5,repeat('B', 500)),
(6,6,repeat('B', 500)),
(7,7,repeat('B', 500)),
(8,8,repeat('B', 500)),
(9,9,repeat('B', 500)),
(10,10,repeat('B', 500)),
(11,11,repeat('B', 500)),
(12,12,repeat('B', 500)),
(13,13,repeat('B', 500)),
(14,14,repeat('B', 500)),
(15,15,repeat('B', 500));
alter table t1 add unique(un);
drop table t1;
alter tablespace ts1 drop datafile 'datafile.dat' engine=ndb;
drop tablespace ts1 engine=ndb;
drop logfile group lg1 engine=ndb;
# bug#57032
create table t1 (
a int not null,
b int,
primary key using hash (a),
unique key using hash (b)
)
engine ndb;
Warnings:
Warning	1121	Ndb does not support unique index on NULL valued attributes, index access with NULL value will become full table scan
insert into t1 values
(0,0),(1,1),(2,2),(3,3),(4,4),
(5,null),(6,null),(7,null),(8,null),(9,null);
set optimizer_switch = 'engine_condition_pushdown=off';
select a from t1 where b is not null order by a;
a
0
1
2
3
4
select a from t1 where b is null order by a;
a
5
6
7
8
9
set optimizer_switch = 'engine_condition_pushdown=on';
select a from t1 where b is not null order by a;
a
0
1
2
3
4
select a from t1 where b is null order by a;
a
5
6
7
8
9
set optimizer_switch = @old_os;
drop table t1;
create table t1 (
a int not null,
b int,
c int,
primary key using hash (a),
unique key using hash (b,c)
)
engine ndb;
Warnings:
Warning	1121	Ndb does not support unique index on NULL valued attributes, index access with NULL value will become full table scan
insert into t1 values
(0,0,0),(1,1,1),(2,2,1),(3,3,1),(4,4,2),
(5,null,0),(6,null,1),(7,null,1),(8,null,1),(9,null,2),
(10,0,null),(11,1,null),(12,1,null),(13,1,null),(14,2,null),
(15,null,null),(16,null,null),(17,null,null),(18,null,null),(19,null,null);
set optimizer_switch = 'engine_condition_pushdown=off';
select a from t1 where b is not null and c = 1 order by a;
a
1
2
3
select a from t1 where b is null and c = 1 order by a;
a
6
7
8
select a from t1 where b = 1 and c is null order by a;
a
11
12
13
select a from t1 where b is null and c is null order by a;
a
15
16
17
18
19
select a from t1 where b is not null and c is null order by a;
a
10
11
12
13
14
select a from t1 where b is null and c is not null order by a;
a
5
6
7
8
9
select a from t1 where b is not null and c is not null order by a;
a
0
1
2
3
4
set optimizer_switch = 'engine_condition_pushdown=on';
select a from t1 where b is not null and c = 1 order by a;
a
1
2
3
select a from t1 where b is null and c = 1 order by a;
a
6
7
8
select a from t1 where b = 1 and c is null order by a;
a
11
12
13
select a from t1 where b is null and c is null order by a;
a
15
16
17
18
19
select a from t1 where b is not null and c is null order by a;
a
10
11
12
13
14
select a from t1 where b is null and c is not null order by a;
a
5
6
7
8
9
select a from t1 where b is not null and c is not null order by a;
a
0
1
2
3
4
set optimizer_switch = @old_os;
drop table t1;
create table t1 (pk int primary key, a int) engine=ndb;
create table t2 (pk int primary key, uq int, a int, 
unique key ix(uq,a) USING HASH) engine=ndb;
Warnings:
Warning	1121	Ndb does not support unique index on NULL valued attributes, index access with NULL value will become full table scan
insert into t2 values
(0,0,0), (1,1,0), (2,2,0), (3,3,0), (4,4,0),
(5,5,1), (6,6,1), (7,7,1), (8,8,1), (9,9,1);
insert into t1
select
t1.pk + t2.pk*10 + t3.pk*100 + t4.pk*1000, t1.a
from
t2 as t1, t2 as t2, t2 as t3, t2 as t4;
explain
SELECT STRAIGHT_JOIN count(*) FROM 
t1 JOIN t2 ON t2.a=t1.a where t2.uq IS NULL;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	t1	p0,p1,p2,p3,p4,p5,p6,p7	ALL	NULL	NULL	NULL	NULL	10000	100.00	Using where with pushed condition (`test`.`t1`.`a` is not null)
1	SIMPLE	t2	p0,p1,p2,p3,p4,p5,p6,p7	ref	ix	ix	10	const,test.t1.a	1	100.00	Using where with pushed condition isnull(`test`.`t2`.`uq`)
Warnings:
Note	1003	/* select#1 */ select straight_join count(0) AS `count(*)` from `test`.`t1` join `test`.`t2` where ((`test`.`t2`.`a` = `test`.`t1`.`a`) and isnull(`test`.`t2`.`uq`))
SELECT STRAIGHT_JOIN count(*) FROM 
t1 JOIN t2 ON t2.a=t1.a where t2.uq IS NULL;
count(*)
0
drop table t1,t2;
CREATE TABLE t1 (
i int
) ENGINE=ndbcluster;
INSERT INTO t1 VALUES (1);
CREATE TABLE t2 (
col_int_unique int,
UNIQUE KEY ix1 (col_int_unique) USING HASH
) ENGINE=ndbcluster;
Warnings:
Warning	1121	Ndb does not support unique index on NULL valued attributes, index access with NULL value will become full table scan
INSERT INTO t2 VALUES (42);
EXPLAIN SELECT * FROM t1 WHERE i IN
(SELECT t2.col_int_unique FROM t2) IS TRUE;
id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	PRIMARY	t1	p0,p1,p2,p3,p4,p5,p6,p7	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
2	DEPENDENT SUBQUERY	t2	p0,p1,p2,p3,p4,p5,p6,p7	index_subquery	ix1	ix1	5	func	2	100.00	Full scan on NULL key
Warnings:
Note	1003	/* select#1 */ select `test`.`t1`.`i` AS `i` from `test`.`t1` where (<in_optimizer>(`test`.`t1`.`i`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`i`) in t2 on ix1 checking NULL having <if>(outer_field_is_not_null, <is_not_null_test>(`test`.`t2`.`col_int_unique`), true)))) is true)
create temporary table row_counts_at_startup 
select * 
from information_schema.session_status
WHERE variable_name LIKE 'NDB_API_READ_ROW_COUNT';
SELECT * FROM t1 WHERE i IN
(SELECT t2.col_int_unique FROM t2) IS TRUE;
i
SELECT * FROM t1 WHERE i IN
(SELECT t2.col_int_unique FROM t2) IS FALSE;
i
1
SELECT * FROM t1 WHERE i IN
(SELECT t2.col_int_unique FROM t2) IS UNKNOWN;
i
SELECT * FROM t1 WHERE i IN
(SELECT t2.col_int_unique FROM t2) IS NOT TRUE;
i
1
SELECT * FROM t1 WHERE i IN
(SELECT t2.col_int_unique FROM t2) IS NOT FALSE;
i
SELECT * FROM t1 WHERE i IN
(SELECT t2.col_int_unique FROM t2) IS NOT UNKNOWN;
i
1
create temporary table row_counts_at_end
select * 
from information_schema.session_status
WHERE variable_name LIKE 'NDB_API_READ_ROW_COUNT';
select row_counts_at_end.VARIABLE_NAME,
row_counts_at_end.VARIABLE_VALUE - row_counts_at_startup.VARIABLE_VALUE 
from row_counts_at_end, row_counts_at_startup 
where row_counts_at_end.VARIABLE_NAME = row_counts_at_startup.VARIABLE_NAME;
VARIABLE_NAME	row_counts_at_end.VARIABLE_VALUE - row_counts_at_startup.VARIABLE_VALUE
NDB_API_READ_ROW_COUNT	6
drop table row_counts_at_end;
drop table row_counts_at_startup;
drop table t1,t2;

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Code Editor : ndb_index_unique.result