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help / color / mirror / Atom feedFrom: legrand legrand <legrand_legrand@hotmail.com>
To: pgsql-performance@postgresql.org
Subject: Re: Query planner gaining the ability to replanning after start of query execution.
Date: Tue, 14 Nov 2017 14:26:16 -0700 (MST)
Message-ID: <1510694776440-0.post@n3.nabble.com> (raw)
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As a first step, before relaunching the query with a new plan I would be
happy to be able to get information about sql queries having wrong
estimates.
Maybe thoses SQL queries could be collected using something similar to
"auto_explain" module (tracing finished or cancelled queries).
If the "corrected plan" taking into account real cardinalities was proposed
(with some advices on how to get it) it would be a great tuning adviser ;o)
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To: pgsql-performance@postgresql.org
Cc: legrand_legrand@hotmail.com
Subject: Re: Query planner gaining the ability to replanning after start of query execution.
In-Reply-To: <1510694776440-0.post@n3.nabble.com>
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