Re: New function pg_stat_statements_reset_query() to reset statistics of a specific query

From: Daniel Gustafsson <daniel(at)yesql(dot)se>
To: Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>
Cc: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: New function pg_stat_statements_reset_query() to reset statistics of a specific query
Date: 2018-06-20 07:42:11
Message-ID: B8834F26-229F-4B0A-A06F-885795F005E1@yesql.se
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> On 20 Jun 2018, at 09:30, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com> wrote:
>
> The pg_stat_statements contains the statistics of the queries that are cumulative.
> I find that any optimizations that are done to improve the performance of a query
> are not be visible clearly until the stats are reset. Currently there is a function to
> reset all the statistics, I find it will be useful if we a function that resets the stats of
> a single query, instead of reseting all the queries.

I’ve found myself wanting this in the past, so +1 on the idea.

> Attached is a simple patch with implementation. Comments?

From only skimming it, the patch seems to lack documentation updates to
doc/src/sgml/pgstatstatements.sgml.

cheers ./daniel

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