| From: | Julius Tuskenis <julius(at)nsoft(dot)lt> |
|---|---|
| To: | Anton Andreev <antonandreev(at)fmi(dot)uni-sofia(dot)bg> |
| Cc: | pgadmin-support(at)postgresql(dot)org, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: problem with check constraints |
| Date: | 2008-10-09 07:50:39 |
| Message-ID: | 48EDB7CF.2030106@nsoft.lt |
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| Thread: | |
| Lists: | pgadmin-support pgsql-general |
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
>
>
--
Julius Tuskenis
Programavimo skyriaus vadovas
UAB nSoft
mob. +37068233050
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