Hello, Anton
Its ok, because conjunction (AND) has priority over disjunction (OR) so
((A and B) or (C and D)) = (A and B or C and D)
Anton Andreev rašė:
> Hi,
>
> When I create a check constraint in PgAdmin3 1.8.4 on a Postgresql
> 8.3.3: ((A and B) or (C and D))
> I get with create script: (A and B or C and D) which is wrong.
>
> Please help.
>
> Cheers,
> Anton
>
>
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