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MDEV-28152 Features for sequences

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- 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
This commit is contained in:
Yuchen Pei
2024-01-04 12:12:50 +11:00
parent eeba940311
commit 374783c3d9
34 changed files with 3472 additions and 264 deletions
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101
mysql-test/suite/sql_sequence/setval.test
View File

@@ -152,6 +152,105 @@ SELECT SETVAL(s, 10);
# Cleanup
DROP SEQUENCE s;
--enable_ps2_protocol
--echo # End of 10.3 tests
--echo #
--echo # MDEV-28152 Features for sequence
--echo #
# out of bounds for the type: returns NULL
create sequence s;
select setval(s, 12345678901234567890);
select nextval(s);
drop sequence s;
create sequence s increment -1;
select setval(s, 12345678901234567890);
select nextval(s);
drop sequence s;
create sequence s as smallint;
select setval(s, 55555);
select setval(s, -55555);
select nextval(s);
drop sequence s;
create sequence s as smallint increment -1;
select setval(s, 55555);
select setval(s, -55555);
select nextval(s);
drop sequence s;
create sequence s as bigint unsigned;
select setval(s, -123);
select nextval(s);
drop sequence s;
create sequence s as bigint unsigned increment -1;
select setval(s, -123);
select nextval(s);
drop sequence s;
# large setval values for bigint unsigned
create sequence s as bigint unsigned;
select setval(s, -123);
select setval(s, 0);
select nextval(s);
select setval(s, 12345678901234567890);
select nextval(s);
select setval(s, 12345678901234567890);
select nextval(s);
select setval(s, 18446744073709551614, 0);
select nextval(s);
--error ER_SEQUENCE_RUN_OUT
select nextval(s);
--error ER_SEQUENCE_RUN_OUT
select setval(s, 12345678901234567890, 0, 1);
alter sequence s cycle;
select setval(s, 12345678901234567890, 0, 1);
select nextval(s);
drop sequence s;
# extreme setval values for bigint unsigned
create sequence s as bigint unsigned;
--error ER_PARSE_ERROR
select setval(s, 18446744073709551616);
select setval(s, 18446744073709551615);
--error ER_SEQUENCE_RUN_OUT
select nextval(s);
drop sequence s;
create sequence s as bigint unsigned;
select setval(s, 18446744073709551615, 0);
--error ER_SEQUENCE_RUN_OUT
select nextval(s);
drop sequence s;
create sequence s as bigint unsigned cycle;
select setval(s, 18446744073709551615);
select nextval(s);
drop sequence s;
create sequence s as bigint unsigned cycle;
select setval(s, 18446744073709551615, 0);
select nextval(s);
drop sequence s;
# a small range for bigint unsigned
create sequence s as bigint unsigned minvalue 123 maxvalue 456;
select setval(s, 100);
select nextval(s);
select setval(s, 500);
--error ER_SEQUENCE_RUN_OUT
select nextval(s);
drop sequence s;
create sequence s as smallint;
select setval(s, 32767);
--error ER_SEQUENCE_RUN_OUT
select nextval(s);
drop sequence s;
--enable_ps2_protocol
--echo # End of 11.4 tests