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Re: [HACKERS] Subselects and NOTs

Thomas Lockhart <lockhart@alumni.caltech.edu>

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From: "Thomas G. Lockhart" <lockhart@alumni.caltech.edu>
To: Robson Paniago de Miranda <robson@mpdft.gov.br>
Cc: Bruce Momjian <maillist@candle.pha.pa.us>, ocie@paracel.com, vadim@sable.krasnoyarsk.su, meskes@topsystem.de, Andreas.Zeugswetter@telecom.at, pgsql-hackers@hub.org
Date: 1998-02-20T16:51:31Z
Lists: pgsql-hackers 
> I think my original patch about NOT NULL constraint allows this type of
> construction. However, thinks have changed in the parser since I made
> this patch, and now seems that a construction like
> CREATE TABLE a (b int constraint not_null NOT NULL)
> is now valid (I only saw gram.y - maybe I'm wrong). I can make the
> patches to allow NULL, but I only want a litte help: is the name of this
> type of constraint beeing saved anywere?

Yes, I think so.