Re: [PATCH] Document heuristics for parameterized paths

From: "Steinar H(dot) Gunderson" <steinar+postgres(at)gunderson(dot)no>
To: Greg Stark <stark(at)mit(dot)edu>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [PATCH] Document heuristics for parameterized paths
Date: 2021-12-16 16:04:40
Message-ID: 20211216160440.dyezkldzcrca5xva@sesse.net
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On Wed, Dec 15, 2021 at 11:23:12PM -0500, Greg Stark wrote:
>>> +one that must cannot be delayed right away (because of outer join
>> must cannot?
> Actually on further reading... "delayed right away"?

There are two ways of writing this sentence, and I see that I tried to use
both of them in the same sentence :-) What about something like the
following?

This is enforced by refusing to join parameterized paths together unless
the parameterization is resolved, *or* the remaining parameterization is
one that cannot be resolved right away (because of outer join restrictions).

/* Steinar */
--
Homepage: https://www.sesse.net/

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