Re: Bug in PL/pgSQL GET DIAGNOSTICS?

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От Peter Eisentraut
Тема Re: Bug in PL/pgSQL GET DIAGNOSTICS?
Дата
Msg-id Pine.LNX.4.44.0209281231120.1149-100000@localhost.localdomain
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Ответ на Re: Bug in PL/pgSQL GET DIAGNOSTICS?  (Bruce Momjian <pgman@candle.pha.pa.us>)
Ответы Re: Bug in PL/pgSQL GET DIAGNOSTICS?  (Bruce Momjian <pgman@candle.pha.pa.us>)
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Bruce Momjian writes:

> Well, let's look at the common case.  For proper view rules, these would
> all return the right values because the UPDATE in the rule would be
> returned.  Is that what you mean?

I guess that really depends on whether the rules are written to properly
constrain the writes to the view to the set of rows visible by the view.
For example, if a view v1 selects from a single table t1 constrained by a
search condition, and I do UPDATE v1 SET ...; without a condition, does
that affect all rows in t1?  If not, then both our proposals are
equivalent, if yes, then the it's the user's fault, I suppose.

-- 
Peter Eisentraut   peter_e@gmx.net



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