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--source include/have_sequence.inc
--source include/have_innodb.inc
#
# Test sequence generation
#
CREATE SEQUENCE t1 start with 1 minvalue 1 maxvalue 10 increment by 1 cache 2 cycle;
show create table t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select NEXT VALUE for t1,seq from seq_1_to_20;
drop sequence t1;
CREATE SEQUENCE t1 minvalue 1 maxvalue 10 increment by -1 cache 2 cycle engine=aria;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select next value for t1;
select next_not_cached_value,cycle_count from t1;
select NEXT VALUE for t1,seq from seq_1_to_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;
select next value for t1;
select next value for t1;
select previous value for t1;
--error ER_SEQUENCE_RUN_OUT
select next value for t1;
select previous value for t1;
--error ER_SEQUENCE_RUN_OUT
select next value for t1;
drop sequence t1;
create sequence s1 start with 1 cache 2 maxvalue 5;
select next value for s1;
select next value for s1;
select next value for s1;
select next value for s1;
select next value for s1;
--error ER_SEQUENCE_RUN_OUT
select next value for s1;
drop sequence s1;
#
# Test that flush tables jumps to next next_not_cached_value
#
CREATE SEQUENCE t1 start with 1 minvalue 1 maxvalue 100 increment by 1 cache 10;
select next value for t1;
select * from t1;
flush tables;
select next value for t1;
select nextval(t1);
drop sequence t1;
#
# Test currval/previous
#
CREATE SEQUENCE t9 start with 1 minvalue 1 maxvalue 10 increment by 1 cache 5 cycle;
select previous value for t9;
select next value for t9;
select previous value for t9, lastval(t9);
select next value for t9;
select previous value for t9, lastval(t9);
select seq, previous value for t9, NEXT VALUE for t9, previous value for t9 from seq_1_to_20;
select * from t9;
drop sequence t9;
#
# CACHE = 0 should be same as CACHE = 1
#
CREATE SEQUENCE s1 cache=0;
select * from s1;
select next value for s1;
select next_not_cached_value from s1;
select next value for s1;
select next_not_cached_value from s1;
DROP SEQUENCE s1;
CREATE SEQUENCE s1 cache=1;
select next_not_cached_value from s1;
select next value for s1;
select next_not_cached_value from s1;
select next value for s1;
select next_not_cached_value from s1;
DROP SEQUENCE s1;
CREATE SEQUENCE s1 cache=2;
select next_not_cached_value from s1;
select next value for s1;
select next_not_cached_value from s1;
select next value for s1;
select next_not_cached_value from s1;
DROP SEQUENCE s1;
#
# Negative increment for sequence
#
CREATE SEQUENCE s1;
select next value for s1;
select next value for s1;
select next value for s1;
select next value for s1;
alter sequence s1 increment -2;
select * from s1;
select next value for s1;
select next value for s1;
alter sequence s1 restart 6;
select next value for s1;
select next value for s1;
select next value for s1;
--error ER_SEQUENCE_RUN_OUT
select next value for s1;
DROP SEQUENCE s1;
#
# Check what happens when one refers to a sequence that has been closed/deleted
#
CREATE SEQUENCE t1 start with 1 minvalue 1 maxvalue 10 increment by 1 cache 5 cycle;
select next value for t1;
select previous value for t1;
flush tables;
select previous value for t1;
drop sequence t1;
--error ER_NO_SUCH_TABLE
select previous value for t1;
CREATE SEQUENCE t1 start with 5 minvalue 1 maxvalue 10 increment by 1 cache 5 cycle;
select previous value for t1;
select next value for t1;
select previous value for t1;
drop sequence t1;
# This failed in an early build
CREATE or replace SEQUENCE s1 MINVALUE 1 MAXVALUE 9999999999
INCREMENT BY 1 START WITH 3984356 CACHE 20 CYCLE engine=innodb;
show create table s1;
select * from s1;
select NEXT VALUE FOR s1;
select NEXT VALUE FOR s1;
select NEXT VALUE FOR s1;
select * from s1;
FLUSH TABLES;
select * from s1;
select NEXT VALUE FOR s1;
select * from s1;
drop sequence s1;
#
# Explain
#
CREATE SEQUENCE t1 start with 5 minvalue 1 maxvalue 10 increment by 1 cache 5 cycle;
explain select next value for t1;
explain select next value for t1, minimum_value from t1;
drop table t1;
#
# Using insert with NEXT VALUE
#
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;
drop table t1,s1;
#
# Using update with NEXT VALUE
#
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;
drop table t1,s1;
#
# NO CACHE and InnoDB
#
CREATE OR REPLACE SEQUENCE s1 MINVALUE 1 MAXVALUE 9999999999 INCREMENT BY 1 START WITH 3984356 nocache CYCLE engine='innodb';
select * from s1;
select next value for s1;
explain extended select next value for s1;
explain extended select previous value for s1;
drop sequence s1;
#
# Some error testing
#
create table t1 (a int);
--error ER_NOT_SEQUENCE
select next value for t1;
drop table t1;
create sequence t1;
select next value for t1;
--error ER_BAD_FIELD_ERROR
select next value for t1, minimum_value;
drop sequence t1;
--echo #
--echo # MDEV-12854 Synchronize CREATE..SELECT data type and result set metadata data type for INT functions
--echo #
--enable_metadata
--disable_ps_protocol
CREATE SEQUENCE s1;
SELECT
NEXT VALUE FOR s1,
PREVIOUS VALUE FOR s1;
DROP SEQUENCE s1;
--enable_ps_protocol
--disable_metadata
--echo #
--echo # MDEV-13720 ER_NOT_SEQUENCE for temporary table
--echo #
create temporary table tmp (i int);
--error ER_NOT_SEQUENCE
select next value for tmp;
drop table tmp;
--echo #
--echo # Test negative numbers
--echo #
create sequence s start with 1 minvalue=-1000 maxvalue=1000 increment -1;
select next value for s;
select next value for s;
flush tables;
select next value for s;
drop sequence s;
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