Re: [SQL] NULL

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>
> How about this according to SQL standard:
>
> CREATE TABLE x { y integer NULL };
>
> It suppose to mean that NULLs are explicitly allowed in
> this field.
> Is this required by SQL-92?

If I remember correctly, only NOT NULL is supported by SQL-92. Thomas
talked about adding support for it in some limited cases for 7.0. There
are shift/reduce cases if it were allowed everywhere.

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