Re: updated join removal patch
| От | Tom Lane |
|---|---|
| Тема | Re: updated join removal patch |
| Дата | |
| Msg-id | 3531.1253294811@sss.pgh.pa.us обсуждение |
| Ответ на | Re: updated join removal patch (Robert Haas <robertmhaas@gmail.com>) |
| Ответы |
Re: updated join removal patch
|
| Список | pgsql-hackers |
Robert Haas <robertmhaas@gmail.com> writes:
> On Thu, Sep 17, 2009 at 4:59 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Robert Haas <robertmhaas@gmail.com> writes:
>>> You're the committer; I'm not. �But I completely disagree. �There
>>> isn't any reason at all to duplicate this logic in two separate
>>> places, let alone three. �I'd actually be in favor of merging the
>>> existing two cases even if we weren't adding join removal.
>>
>> No, I still think this was a bad idea. �There are *parts* of those
>> tests that are similar, but combining them all into one function is
>> just a recipe for bugs.
> Having read your commit, it makes more sense to me. The fact that
> we're now looking at innerrel->baserestrictinfo also is a pretty
> powerful argument for your way.
Looking at it some more, I think that there is some value in factoring
out the tests to see if the clause has the right variable membership,
so I did that.
regards, tom lane
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