public inbox for [email protected]  

help / color / mirror / Atom feed

From: Nico Williams <[email protected]>
To: Adrian Klaver <[email protected]>
Cc: Laurenz Albe <[email protected]>
Cc: Olleg Samoylov <[email protected]>
Cc: pgsql-generallists.postgresql.org <[email protected]>
Subject: Re: Interesting case of IMMUTABLE significantly hurting performance
Date: Thu, 10 Apr 2025 10:48:40 -0500
Message-ID: <Z/foWNmbdDOWH6/M@ubby> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>
	<Z/bk5E6pqIBWTF3j@ubby>
	<[email protected]>

On Wed, Apr 09, 2025 at 02:43:11PM -0700, Adrian Klaver wrote:
> On 4/9/25 14:21, Nico Williams wrote:
> > That to_char is not immutable is not documented though.  Though it's
> > clear when looking at the docs for the `jsonb_.*_tz()` functions.
> 
> From here:
> 
> https://www.postgresql.org/docs/current/catalog-pg-proc.html
> 
> select proname, provolatile, prosrc  from pg_proc where proname='to_char';
> [...]

I'm surprised to see that counted as docs, but good to know.

view thread (11+ messages)  latest in thread

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: [email protected]
  Cc: [email protected], [email protected], [email protected], [email protected], [email protected]
  Subject: Re: Interesting case of IMMUTABLE significantly hurting performance
  In-Reply-To: <Z/foWNmbdDOWH6/M@ubby>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox