MDEV-28152 Features for sequences

- 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

mysql-test/suite/sql_sequence/setval.result

@@ -269,3 +269,153 @@ SETVAL(s, 10)
 10
 DROP SEQUENCE s;
 # End of 10.3 tests
+#
+# MDEV-28152 Features for sequence
+#
+create sequence s;
+select setval(s, 12345678901234567890);
+setval(s, 12345678901234567890)
+NULL
+select nextval(s);
+nextval(s)
+1
+drop sequence s;
+create sequence s increment -1;
+select setval(s, 12345678901234567890);
+setval(s, 12345678901234567890)
+NULL
+select nextval(s);
+nextval(s)
+-1
+drop sequence s;
+create sequence s as smallint;
+select setval(s, 55555);
+setval(s, 55555)
+NULL
+select setval(s, -55555);
+setval(s, -55555)
+NULL
+select nextval(s);
+nextval(s)
+1
+drop sequence s;
+create sequence s as smallint increment -1;
+select setval(s, 55555);
+setval(s, 55555)
+NULL
+select setval(s, -55555);
+setval(s, -55555)
+NULL
+select nextval(s);
+nextval(s)
+-1
+drop sequence s;
+create sequence s as bigint unsigned;
+select setval(s, -123);
+setval(s, -123)
+NULL
+select nextval(s);
+nextval(s)
+1
+drop sequence s;
+create sequence s as bigint unsigned increment -1;
+select setval(s, -123);
+setval(s, -123)
+NULL
+select nextval(s);
+nextval(s)
+18446744073709551614
+drop sequence s;
+create sequence s as bigint unsigned;
+select setval(s, -123);
+setval(s, -123)
+NULL
+select setval(s, 0);
+setval(s, 0)
+0
+select nextval(s);
+nextval(s)
+1
+select setval(s, 12345678901234567890);
+setval(s, 12345678901234567890)
+12345678901234567890
+select nextval(s);
+nextval(s)
+12345678901234567891
+select setval(s, 12345678901234567890);
+setval(s, 12345678901234567890)
+NULL
+select nextval(s);
+nextval(s)
+12345678901234567892
+select setval(s, 18446744073709551614, 0);
+setval(s, 18446744073709551614, 0)
+18446744073709551614
+select nextval(s);
+nextval(s)
+18446744073709551614
+select nextval(s);
+ERROR HY000: Sequence 'test.s' has run out
+select setval(s, 12345678901234567890, 0, 1);
+ERROR HY000: Sequence 'test.s' has run out
+alter sequence s cycle;
+select setval(s, 12345678901234567890, 0, 1);
+setval(s, 12345678901234567890, 0, 1)
+12345678901234567890
+select nextval(s);
+nextval(s)
+12345678901234567890
+drop sequence s;
+create sequence s as bigint unsigned;
+select setval(s, 18446744073709551616);
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '18446744073709551616)' at line 1
+select setval(s, 18446744073709551615);
+setval(s, 18446744073709551615)
+18446744073709551615
+select nextval(s);
+ERROR HY000: Sequence 'test.s' has run out
+drop sequence s;
+create sequence s as bigint unsigned;
+select setval(s, 18446744073709551615, 0);
+setval(s, 18446744073709551615, 0)
+18446744073709551615
+select nextval(s);
+ERROR HY000: Sequence 'test.s' has run out
+drop sequence s;
+create sequence s as bigint unsigned cycle;
+select setval(s, 18446744073709551615);
+setval(s, 18446744073709551615)
+18446744073709551615
+select nextval(s);
+nextval(s)
+1
+drop sequence s;
+create sequence s as bigint unsigned cycle;
+select setval(s, 18446744073709551615, 0);
+setval(s, 18446744073709551615, 0)
+18446744073709551615
+select nextval(s);
+nextval(s)
+1
+drop sequence s;
+create sequence s as bigint unsigned minvalue 123 maxvalue 456;
+select setval(s, 100);
+setval(s, 100)
+NULL
+select nextval(s);
+nextval(s)
+123
+select setval(s, 500);
+setval(s, 500)
+500
+select nextval(s);
+ERROR HY000: Sequence 'test.s' has run out
+drop sequence s;
+create sequence s as smallint;
+select setval(s, 32767);
+setval(s, 32767)
+32767
+select nextval(s);
+ERROR HY000: Sequence 'test.s' has run out
+drop sequence s;
+# End of 11.4 tests