Re: AW: New warning code for missing FROM relations

From: Philip Warner <pjw(at)rhyme(dot)com(dot)au>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Zeugswetter Andreas SB <ZeugswetterA(at)wien(dot)spardat(dot)at>, "'Peter Eisentraut'" <peter_e(at)gmx(dot)net>, "'Bruce Momjian'" <pgman(at)candle(dot)pha(dot)pa(dot)us>, "'PostgreSQL-development'" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: AW: New warning code for missing FROM relations
Date: 2000-06-06 04:41:35
Message-ID: 3.0.5.32.20000606144135.022e3b90@mail.rhyme.com.au
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At 11:44 5/06/00 -0400, Tom Lane wrote:
>Philip Warner <pjw(at)rhyme(dot)com(dot)au> writes:
>> I take it that there is no chance of a compile-time or runtime option to
>> disallow this kind of thing in all cases?
>
>Define "all cases" ... also, just how strict do you want to be?
>Disallow use of *any* Postgres feature that is not in SQL92 (that
>would include all user datatypes and functions, for example)?

Sorry, I should have been a bit more specific! I would like some kind of
option to disable all cases of adding tables to FROM clauses by
implication. The main issue I have with this feature is it is more likely
to be used (by me) by accident (as a result of a typo), and consequently
introduce very strange results.

I am unaware (yet? ;-}) of any other non-SQL features in PostgreSQL that
are likely to cause me the same level of concern. Adding tables to a query
seems very dangerous: some people might, for example, expect an automatic
natural join on primary/foreign keys if you add a table.

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