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From: Emre Hasegeli <emre@hasegeli.com>
To: Huang, Suya <Suya.Huang@au.experian.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Andreas Kretschmer <akretschmer@spamfence.net>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: GIN index not used
Date: Sat, 12 Jul 2014 11:31:15 +0300
Message-ID: <20140712083115.GA515@hasegeli-2.local> (raw)
In-Reply-To: <D83E55F5F4D99B4A9B4C4E259E6227CD014C3306@AUX1EXC01.apac.experian.local>
References: <D83E55F5F4D99B4A9B4C4E259E6227CD014C3263@AUX1EXC01.apac.experian.local>
	<20140711044452.GA7390@tux>
	<20680.1405054574@sss.pgh.pa.us>
	<D83E55F5F4D99B4A9B4C4E259E6227CD014C32C9@AUX1EXC01.apac.experian.local>
	<21821.1405057404@sss.pgh.pa.us>
	<D83E55F5F4D99B4A9B4C4E259E6227CD014C3306@AUX1EXC01.apac.experian.local>
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> -----Original Message-----

It is hard to read your message.  You should indicate the quoted lines.
Please fix your email client.

> About the contrib/intarray, do I have other choices not using that one?

integer[] and contrib/intarray are two different data types.

> About the join, yeah, in our testing for DW-like queries, hash join does improved the performance greatly...

Then, it should be chosen by the planner.  I doubt it is the best
choice in all cases.  It is not advised to set these parameters
globally.


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