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From: Michael Paquier <michael@paquier.xyz>
To: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
Cc: robertmhaas@gmail.com
Cc: ideriha.takeshi@jp.fujitsu.com
Cc: tomas.vondra@2ndquadrant.com
Cc: tgl@sss.pgh.pa.us
Cc: andres@anarazel.de
Cc: tsunakawa.takay@jp.fujitsu.com
Cc: alvherre@2ndquadrant.com
Cc: bruce@momjian.us
Cc: pgsql-hackers@lists.postgresql.org
Cc: michael.paquier@gmail.com
Cc: david@pgmasters.net
Cc: craig@2ndquadrant.com
Subject: Re: Protect syscache from bloating with negative cache entries
Date: Sun, 1 Dec 2019 12:40:00 +0900
Message-ID: <20191201034000.GI2355@paquier.xyz> (raw)
In-Reply-To: <20191119.194810.255216975235933051.horikyota.ntt@gmail.com>
References: <20190701.160259.247597303.horikyota.ntt@gmail.com>
	<20191119.194810.255216975235933051.horikyota.ntt@gmail.com>

On Tue, Nov 19, 2019 at 07:48:10PM +0900, Kyotaro Horiguchi wrote:
> I'd like to throw in food for discussion on how much SearchSysCacheN
> suffers degradation from some choices on how we can insert a code into
> the SearchSysCacheN code path.

Please note that the patch has a warning, causing cfbot-san to
complain:
catcache.c:786:1: error: no previous prototype for
‘CatalogCacheFlushCatalog2’ [-Werror=missing-prototypes]
 CatalogCacheFlushCatalog2(Oid catId)
 ^
cc1: all warnings being treated as errors

So this should at least be fixed.  For now I have moved it to next CF,
waiting on author.
--
Michael

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  Cc: michael@paquier.xyz, horikyota.ntt@gmail.com, robertmhaas@gmail.com, ideriha.takeshi@jp.fujitsu.com, tomas.vondra@2ndquadrant.com, tgl@sss.pgh.pa.us, andres@anarazel.de, tsunakawa.takay@jp.fujitsu.com, alvherre@2ndquadrant.com, bruce@momjian.us, pgsql-hackers@lists.postgresql.org, michael.paquier@gmail.com, david@pgmasters.net, craig@2ndquadrant.com
  Subject: Re: Protect syscache from bloating with negative cache entries
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