Обсуждение: SERIAL parameters

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SERIAL parameters

От
Arnold Putong
Дата:
Would it be possible to have parameters in the SERIAL datatype?

CREATE TABLE x { ID  SERIAL(100, 10) }

means ID starts at 100 and will be incremented by 10.  And it would be
nice to have

CREATE TABLE x { ID  SERIAL(0,0) }

mean that ID will be issued random non-repeating values (period=2^bitwidth
of type).  This is most likely useful in replication/merging data.




Re: SERIAL parameters

От
Bruce Momjian
Дата:
You can create the sequence manually and define that a the default for
the column.  I suppose we could pass the create sequence params through
SERIAL but there doesn't seem like there is much demand for it.

---------------------------------------------------------------------------

Arnold Putong wrote:
> Would it be possible to have parameters in the SERIAL datatype?
> 
> CREATE TABLE x { ID  SERIAL(100, 10) }
> 
> means ID starts at 100 and will be incremented by 10.  And it would be
> nice to have
> 
> CREATE TABLE x { ID  SERIAL(0,0) }
> 
> mean that ID will be issued random non-repeating values (period=2^bitwidth
> of type).  This is most likely useful in replication/merging data.
> 
> 
> 
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