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Getting query plan alternatives from query planner? - Mailing list pgsql-performance

From	Stefan Keller
Subject	Getting query plan alternatives from query planner?
Date	March 20, 2014 19:54:05
Msg-id	CAFcOn2-9j4fTcJ39xvdCByF6dg3U_=TGumCCp1-7SH_J9G+GtA@mail.gmail.com Whole thread Raw
Responses	Re: Getting query plan alternatives from query planner? (Tom Lane <tgl@sss.pgh.pa.us>)
List	pgsql-performance

Hi,

I'd like to know from the query planner which query plan alternatives
have been generated and rejected. Is this possible?

--Stefan

From: Franck Routier
Date: 20 March 2014, 19:27:23
Subject: Re: long lasting select, no io nor cpu usage ?

From: Jean-Max Reymond
Date: 20 March 2014, 19:57:48
Subject: Performance of UNION vs IN