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Re: Intermittent test plan change in "privileges" test on BF animal prion - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Intermittent test plan change in "privileges" test on BF animal prion
Date
Msg-id 2144773.1591671280@sss.pgh.pa.us
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In response to Intermittent test plan change in "privileges" test on BF animal prion  (Thomas Munro <thomas.munro@gmail.com>)
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Thomas Munro <thomas.munro@gmail.com> writes:
> Two recent failures show plan changes in RLS queries on master.

Yeah.  I assume this is related to 0c882e52a, but I'm not sure how.
The fact that we've only seen it on prion (which runs
-DRELCACHE_FORCE_RELEASE -DCATCACHE_FORCE_RELEASE) is suggestive,
but it's not clear why those options would lead to unstable
planner estimates.  I've been waiting to see if we start to get
similar reports from the full-fledged CLOBBER_CACHE_ALWAYS critters.

            regards, tom lane

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