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Re: comparing rows

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Magnus Hagander <mha(at)sollentuna(dot)net>
Cc: Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: comparing rows
Date: 2000-08-03 13:55:35
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Lists: pgsql-hackers
Magnus Hagander <mha(at)sollentuna(dot)net> writes:
> Summary of MS:
> When it runs in ANSI mode, null != null.
> When it runs in backwards compatible mode , null=null.

Oh, that's interesting, they fixed their bug.

foo = NULL should produce NULL (*not* true, and *not* false either,
though it'd act like false in a CASE test).

Here is one vote for ripping out our parser kluge and making null act
like it should according to the spec.  Comments?

			regards, tom lane

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