Re: [HACKERS] Optimizer cleanup to avoid redundant work on joins - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: [HACKERS] Optimizer cleanup to avoid redundant work on joins
Date
Msg-id 200002062159.QAA06005@candle.pha.pa.us
Whole thread Raw
In response to Re: [HACKERS] Optimizer cleanup to avoid redundant work on joins  (Tom Lane <tgl@sss.pgh.pa.us>)
List 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@candle.pha.pa.us               |  (610)
853-3000+  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill,
Pennsylvania19026
 


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