Postgres Pro
Downloads
Home   >   mailing lists

Re: Does Postgres have consistent identifiers (plan hash value) for explain plans? - Mailing list pgsql-performance

From Tom Lane
Subject Re: Does Postgres have consistent identifiers (plan hash value) for explain plans?
Date
Msg-id 756532.1701701844@sss.pgh.pa.us
Whole thread Raw
In response to Does Postgres have consistent identifiers (plan hash value) for explain plans?  (Jerry Brenner <jbrenner@guidewire.com>)
Responses Re: Does Postgres have consistent identifiers (plan hash value) for explain plans?  (Michael Paquier <michael@paquier.xyz>)
List pgsql-performance
Tree view 
Jerry Brenner <jbrenner@guidewire.com> writes:
> Both Oracle and SQL Server have
> consistent hash values for query plans and that makes it easy to identify
> when there are multiple plans for the same query.  Does that concept exist
> in later releases of Postgres (and is the value stored in the json explain
> plan)?

No, there's no support currently for obtaining a hash value that's
associated with a plan rather than an input query tree.

            regards, tom lane

pgsql-performance by date:

Previous
From: Jerry Brenner
Date:
Subject: Does Postgres have consistent identifiers (plan hash value) for explain plans?
Next
From: Julien Rouhaud
Date:
Subject: Re: Does Postgres have consistent identifiers (plan hash value) for explain plans?