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374783c3d9
- Add `as <int_type>` to sequence creation options
- int_type can be signed or unsigned integer types, including
tinyint, smallint, mediumint, int and bigint
- Limitation: when alter sequence as <new_int_type>, cannot have any
other alter options in the same statement
- Limitation: increment remains signed longlong, and the hidden
constraint (cache_size x abs(increment) < longlong_max) stays for
unsigned types. This means for bigint unsigned, neither
abs(increment) nor (cache_size x abs(increment)) can be between
longlong_max and ulonglong_max
- Truncating maxvalue and minvalue from user input to the nearest max
or min value of the type, plus or minus 1. When the truncation
happens, a warning is emitted
- Information schema table for sequences
67 lines
1.8 KiB
Plaintext
67 lines
1.8 KiB
Plaintext
CREATE SEQUENCE s1 ENGINE=InnoDB;
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CREATE SEQUENCE s2 ENGINE=InnoDB;
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connect con1,localhost,root,,test;
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CREATE TABLE s3 LIKE s2;;
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connection default;
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CREATE SEQUENCE s4 ENGINE=InnoDB;
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SELECT * from s1 WHERE start_value IN (SELECT start_value FROM s2);
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next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
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1 1 9223372036854775806 1 1 1000 0 0
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connection con1;
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disconnect con1;
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connection default;
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DROP SEQUENCE s1, s2, s3, s4;
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CREATE SEQUENCE s1 ENGINE=InnoDB;
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PREPARE stmt FROM "CREATE TABLE s2 LIKE s1";
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execute stmt;
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drop table s2;
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execute stmt;
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drop table s2;
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execute stmt;
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select * from s2;
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next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
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1 1 9223372036854775806 1 1 1000 0 0
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DROP SEQUENCE s1, s2;
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CREATE SEQUENCE s1 ENGINE=InnoDB;
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connect con1,localhost,root,,test;
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CREATE TABLE s2 LIKE s1;;
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connection default;
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FLUSH TABLES;
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connection con1;
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disconnect con1;
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connection default;
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DROP TABLE s1,s2;
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CREATE TABLE t1 (a INT) ENGINE=InnoDB;
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START TRANSACTION WITH CONSISTENT SNAPSHOT;
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connect con1,localhost,root,,test;
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CREATE SEQUENCE s1 ENGINE=InnoDB;
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FLUSH TABLES;
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disconnect con1;
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connection default;
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SELECT NEXTVAL(s1);
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NEXTVAL(s1)
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1
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COMMIT;
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DROP TABLE t1;
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DROP SEQUENCE s1;
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#
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# MDEV-28152 Features for sequence
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#
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CREATE SEQUENCE s1 as mediumint unsigned ENGINE=InnoDB;
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PREPARE stmt FROM "CREATE TABLE s2 LIKE s1";
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execute stmt;
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drop table s2;
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execute stmt;
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show create sequence s2;
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Table Create Table
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s2 CREATE SEQUENCE `s2` as mediumint unsigned start with 1 minvalue 1 maxvalue 16777214 increment by 1 cache 1000 nocycle ENGINE=InnoDB
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drop table s2;
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execute stmt;
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select * from s2;
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next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
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1 1 16777214 1 1 1000 0 0
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DROP SEQUENCE s1, s2;
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#
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# End of 11.4 tests
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#
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