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mariadb/mysql-test/suite/sql_sequence/next.result
Monty 17a87d6063 MDEV-10139 Support for SEQUENCE objects 
Working features:
CREATE OR REPLACE [TEMPORARY] SEQUENCE [IF NOT EXISTS] name
    [ INCREMENT [ BY | = ] increment ]
    [ MINVALUE [=] minvalue | NO MINVALUE ]
    [ MAXVALUE [=] maxvalue | NO MAXVALUE ]
    [ START [ WITH | = ] start ] [ CACHE [=] cache ] [ [ NO ] CYCLE ]
    ENGINE=xxx COMMENT=".."
SELECT NEXT VALUE FOR sequence_name;
SELECT NEXTVAL(sequence_name);
SELECT PREVIOUS VALUE FOR sequence_name;
SELECT LASTVAL(sequence_name);

SHOW CREATE SEQUENCE sequence_name;
SHOW CREATE TABLE sequence_name;
CREATE TABLE sequence-structure ... SEQUENCE=1
ALTER TABLE sequence RENAME TO sequence2;
RENAME TABLE sequence TO sequence2;
DROP [TEMPORARY] SEQUENCE  [IF EXISTS] sequence_names

Missing features
- SETVAL(value,sequence_name), to be used with replication.
- Check replication, including checking that sequence tables are marked
  not transactional.
- Check that a commit happens for NEXT VALUE that changes table data (may
  already work)
- ALTER SEQUENCE. ANSI SQL version of setval.
- Share identical sequence entries to not add things twice to table list.
- testing insert/delete/update/truncate/load data
- Run and fix Alibaba sequence tests (part of mysql-test/suite/sql_sequence)
- Write documentation for NEXT VALUE / PREVIOUS_VALUE
- NEXTVAL in DEFAULT
  - Ensure that NEXTVAL in DEFAULT uses database from base table
- Two NEXTVAL for same row should give same answer.
- Oracle syntax sequence_table.nextval, without any FOR or FROM.
- Sequence tables are treated as 'not read constant tables' by SELECT; Would
  be better if we would have a separate list for sequence tables so that
  select doesn't know about them, except if refereed to with FROM.

Other things done:
- Improved output for safemalloc backtrack
- frm_type_enum changed to Table_type
- Removed lex->is_view and replaced with lex->table_type. This allows
  use to more easy check if item is view, sequence or table.
- Added table flag HA_CAN_TABLES_WITHOUT_ROLLBACK, needed for handlers
  that want's to support sequences
- Added handler calls:
 - engine_name(), to simplify getting engine name for partition and sequences
 - update_first_row(), to be able to do efficient sequence implementations.
 - Made binlog_log_row() global to be able to call it from ha_sequence.cc
- Added handler variable: row_already_logged, to be able to flag that the
  changed row is already logging to replication log.
- Added CF_DB_CHANGE and CF_SCHEMA_CHANGE flags to simplify
  deny_updates_if_read_only_option()
- Added sp_add_cfetch() to avoid new conflicts in sql_yacc.yy
- Moved code for add_table_options() out from sql_show.cc::show_create_table()
- Added String::append_longlong() and used it in sql_show.cc to simplify code.
- Added extra option to dd_frm_type() and ha_table_exists to indicate if
  the table is a sequence. Needed by DROP SQUENCE to not drop a table.
2017-04-07 18:09:56 +04:00

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CREATE SEQUENCE t1 start with 1 minvalue 1 maxvalue 10 increment by 1 cache 2 cycle;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`next_value` bigint(21) NOT NULL COMMENT 'next not cached value',
`min_value` bigint(21) NOT NULL COMMENT 'min value',
`max_value` bigint(21) NOT NULL COMMENT 'max value',
`start` bigint(21) NOT NULL COMMENT 'start value',
`increment` bigint(21) NOT NULL COMMENT 'increment value',
`cache` bigint(21) NOT NULL COMMENT 'cache size',
`cycle` tinyint(1) unsigned NOT NULL COMMENT 'cycle state',
`round` bigint(21) NOT NULL COMMENT 'How many cycles has been done'
) ENGINE=MyISAM SEQUENCE=1
select next value for t1;
next value for t1
1
select next_value,round from t1;
next_value round
3 0
select next value for t1;
next value for t1
2
select next_value,round from t1;
next_value round
3 0
select next value for t1;
next value for t1
3
select next_value,round from t1;
next_value round
5 0
select next value for t1;
next value for t1
4
select next_value,round from t1;
next_value round
5 0
select next value for t1;
next value for t1
5
select next_value,round from t1;
next_value round
7 0
select next value for t1;
next value for t1
6
select next_value,round from t1;
next_value round
7 0
select next value for t1;
next value for t1
7
select next_value,round from t1;
next_value round
9 0
select next value for t1;
next value for t1
8
select next_value,round from t1;
next_value round
9 0
select next value for t1;
next value for t1
9
select next_value,round from t1;
next_value round
11 0
select next value for t1;
next value for t1
10
select next_value,round from t1;
next_value round
11 0
select next value for t1;
next value for t1
1
select next_value,round from t1;
next_value round
3 1
select NEXT VALUE for t1,seq from seq_1_to_20;
NEXT VALUE for t1 seq
2 1
3 2
4 3
5 4
6 5
7 6
8 7
9 8
10 9
1 10
2 11
3 12
4 13
5 14
6 15
7 16
8 17
9 18
10 19
1 20
drop sequence t1;
CREATE SEQUENCE t1 minvalue 1 maxvalue 10 increment by -1 cache 2 cycle engine=aria;
select next value for t1;
next value for t1
10
select next_value,round from t1;
next_value round
8 0
select next value for t1;
next value for t1
9
select next_value,round from t1;
next_value round
8 0
select next value for t1;
next value for t1
8
select next_value,round from t1;
next_value round
6 0
select next value for t1;
next value for t1
7
select next_value,round from t1;
next_value round
6 0
select next value for t1;
next value for t1
6
select next_value,round from t1;
next_value round
4 0
select next value for t1;
next value for t1
5
select next_value,round from t1;
next_value round
4 0
select next value for t1;
next value for t1
4
select next_value,round from t1;
next_value round
2 0
select next value for t1;
next value for t1
3
select next_value,round from t1;
next_value round
2 0
select next value for t1;
next value for t1
2
select next_value,round from t1;
next_value round
0 0
select next value for t1;
next value for t1
1
select next_value,round from t1;
next_value round
0 0
select next value for t1;
next value for t1
10
select next_value,round from t1;
next_value round
8 1
select NEXT VALUE for t1,seq from seq_1_to_20;
NEXT VALUE for t1 seq
9 1
8 2
7 3
6 4
5 5
4 6
3 7
2 8
1 9
10 10
9 11
8 12
7 13
6 14
5 15
4 16
3 17
2 18
1 19
10 20
drop sequence t1;
CREATE SEQUENCE t1 start with 8 minvalue 1 maxvalue 10 increment by 1 cache 2 nocycle;
select next value for t1;
next value for t1
8
select next value for t1;
next value for t1
9
select next value for t1;
next value for t1
10
select previous value for t1;
previous value for t1
10
select next value for t1;
ERROR HY000: Sequence 'test.t1' has run out
select previous value for t1;
previous value for t1
NULL
select next value for t1;
ERROR HY000: Sequence 'test.t1' has run out
drop sequence t1;
create sequence s1 start with 1 cache 2 maxvalue 5;
select next value for s1;
next value for s1
1
select next value for s1;
next value for s1
2
select next value for s1;
next value for s1
3
select next value for s1;
next value for s1
4
select next value for s1;
next value for s1
5
select next value for s1;
ERROR HY000: Sequence 'test.s1' has run out
drop sequence s1;
CREATE SEQUENCE t1 start with 1 minvalue 1 maxvalue 100 increment by 1 cache 10;
select next value for t1;
next value for t1
1
select * from t1;
next_value min_value max_value start increment cache cycle round
11 1 100 1 1 10 0 0
flush tables;
select next value for t1;
next value for t1
11
select nextval(t1);
nextval(t1)
12
drop sequence t1;
CREATE SEQUENCE t9 start with 1 minvalue 1 maxvalue 10 increment by 1 cache 5 cycle;
select previous value for t9;
previous value for t9
NULL
select next value for t9;
next value for t9
1
select previous value for t9, lastval(t9);
previous value for t9 lastval(t9)
1 1
select next value for t9;
next value for t9
2
select previous value for t9, lastval(t9);
previous value for t9 lastval(t9)
2 2
select seq, previous value for t9, NEXT VALUE for t9, previous value for t9 from seq_1_to_20;
seq previous value for t9 NEXT VALUE for t9 previous value for t9
1 2 3 3
2 3 4 4
3 4 5 5
4 5 6 6
5 6 7 7
6 7 8 8
7 8 9 9
8 9 10 10
9 10 1 1
10 1 2 2
11 2 3 3
12 3 4 4
13 4 5 5
14 5 6 6
15 6 7 7
16 7 8 8
17 8 9 9
18 9 10 10
19 10 1 1
20 1 2 2
select * from t9;
next_value min_value max_value start increment cache cycle round
6 1 10 1 1 5 1 2
drop sequence t9;
CREATE SEQUENCE t1 start with 1 minvalue 1 maxvalue 10 increment by 1 cache 5 cycle;
select next value for t1;
next value for t1
1
select previous value for t1;
previous value for t1
1
flush tables;
select previous value for t1;
previous value for t1
1
drop sequence t1;
select previous value for t1;
ERROR 42S02: Table 'test.t1' doesn't exist
CREATE SEQUENCE t1 start with 5 minvalue 1 maxvalue 10 increment by 1 cache 5 cycle;
select previous value for t1;
previous value for t1
NULL
select next value for t1;
next value for t1
5
select previous value for t1;
previous value for t1
5
drop sequence t1;
CREATE or replace SEQUENCE s1 MINVALUE 1 MAXVALUE 9999999999
INCREMENT BY 1 START WITH 3984356 CACHE 20 CYCLE engine=innodb;
show create table s1;
Table Create Table
s1 CREATE TABLE `s1` (
`next_value` bigint(21) NOT NULL COMMENT 'next not cached value',
`min_value` bigint(21) NOT NULL COMMENT 'min value',
`max_value` bigint(21) NOT NULL COMMENT 'max value',
`start` bigint(21) NOT NULL COMMENT 'start value',
`increment` bigint(21) NOT NULL COMMENT 'increment value',
`cache` bigint(21) NOT NULL COMMENT 'cache size',
`cycle` tinyint(1) unsigned NOT NULL COMMENT 'cycle state',
`round` bigint(21) NOT NULL COMMENT 'How many cycles has been done'
) ENGINE=InnoDB SEQUENCE=1
select * from s1;
next_value min_value max_value start increment cache cycle round
3984356 1 9999999999 3984356 1 20 1 0
select NEXT VALUE FOR s1;
NEXT VALUE FOR s1
3984356
select NEXT VALUE FOR s1;
NEXT VALUE FOR s1
3984357
select NEXT VALUE FOR s1;
NEXT VALUE FOR s1
3984358
select * from s1;
next_value min_value max_value start increment cache cycle round
3984376 1 9999999999 3984356 1 20 1 0
FLUSH TABLES;
select * from s1;
next_value min_value max_value start increment cache cycle round
3984376 1 9999999999 3984356 1 20 1 0
select NEXT VALUE FOR s1;
NEXT VALUE FOR s1
3984376
select * from s1;
next_value min_value max_value start increment cache cycle round
3984396 1 9999999999 3984356 1 20 1 0
drop sequence s1;
CREATE SEQUENCE t1 start with 5 minvalue 1 maxvalue 10 increment by 1 cache 5 cycle;
explain select next value for t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
explain select next value for t1, min_value from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1
drop table t1;
CREATE SEQUENCE s1;
CREATE TABLE t1 (a int);
insert into t1 values (next value for s1);
insert into t1 values (next value for s1);
select * from t1;
a
1
2
drop table t1,s1;
CREATE SEQUENCE s1;
CREATE TABLE t1 (a int primary key auto_increment, b int default 0) engine=myisam;
insert into t1 values (),(),(),(),(),(),();
update t1 set b= next value for s1 where a <= 3;
select * from t1;
a b
1 1
2 2
3 3
4 0
5 0
6 0
7 0
drop table t1,s1;
CREATE OR REPLACE SEQUENCE s1 MINVALUE 1 MAXVALUE 9999999999 INCREMENT BY 1 START WITH 3984356 nocache CYCLE engine='innodb';
select * from s1;
next_value min_value max_value start increment cache cycle round
3984356 1 9999999999 3984356 1 0 1 0
select next value for s1;
next value for s1
3984356
drop sequence s1;
create table t1 (a int);
select next value for t1;
ERROR 42S02: 'test.t1' is not a SEQUENCE
drop table t1;
create sequence t1;
select next value for t1;
next value for t1
1
select next value for t1, min_value;
ERROR 42S22: Unknown column 'min_value' in 'field list'
drop sequence t1;
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