From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-hackers(at)postgreSQL(dot)org |
Subject: | Re: [HACKERS] Optimizer cleanup to avoid redundant work on joins |
Date: | 2000-02-06 21:59:45 |
Message-ID: | 200002062159.QAA06005@candle.pha.pa.us |
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Lists: | pgsql-hackers |
> We could still unify the RelOptInfos for different ways of making the
> same joinrel if we stored restrictinfo lists for joins in individual
> join paths, rather than in the RelOptInfo. I think that might be worth
> doing, but the change is looking larger and subtler than I thought.
> Probably best not to try to squeeze it in right before beta.
>
> I will set aside the code I already rewrote for this purpose, and come
> back to it after we start 7.1.
What happened to the time-honored tradition of jamming partially-tested
features in before the beta feature freeze. Are we getting too
conservative in our old age? :-)
--
Bruce Momjian | http://www.op.net/~candle
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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