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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
50 lines
1.3 KiB
Plaintext
50 lines
1.3 KiB
Plaintext
set global auto_increment_increment= 2, auto_increment_offset= 2;
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create sequence s start with -3 minvalue= -1000 increment 0;
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select nextval(s);
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nextval(s)
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-2
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select nextval(s);
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nextval(s)
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0
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flush tables;
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select nextval(s);
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nextval(s)
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1998
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drop sequence s;
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set global auto_increment_increment= 2, auto_increment_offset= 1;
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create sequence s start with -3 minvalue= -1000 increment 0;
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select nextval(s);
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nextval(s)
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-3
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select nextval(s);
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nextval(s)
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-1
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select nextval(s);
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nextval(s)
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1
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flush tables;
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select nextval(s);
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nextval(s)
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1997
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drop sequence s;
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set global auto_increment_increment= default, auto_increment_offset= default;
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#
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# MDEV-28152 Features for sequence
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#
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call mtr.add_suppression("signed integer overflow: 42 \\+ 9223372036854775800 cannot be represented in type 'long long int'");
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call mtr.add_suppression("signed integer overflow: 9223372036854775800 \\+ 100000 cannot be represented in type 'long long int'");
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set global auto_increment_increment= 100;
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set global auto_increment_offset= 42;
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create sequence s as bigint unsigned start with 9223372036854775800 increment 0;
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select next value for s;
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next value for s
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9223372036854775842
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select next value for s;
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next value for s
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9223372036854775942
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drop sequence s;
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set global auto_increment_increment= default, auto_increment_offset= default;
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#
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# End of 11.4 tests
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#
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