public inbox for [email protected]  

help / color / mirror / Atom feed

From: David E. Wheeler <[email protected]>
To: Tom Lane <[email protected]>
Cc: Florents Tselai <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Cc: Robert Haas <[email protected]>
Cc: Alexander Korotkov <[email protected]>
Cc: pgsql-hackers <[email protected]>
Cc: Andrew Dunstan <[email protected]>
Subject: Re: PATCH: jsonpath string methods: lower, upper, initcap, l/r/btrim, replace, split_part
Date: Sat, 24 May 2025 12:08:18 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <CA+v5N40sJF39m0v7h=QN86zGp0CUf9F1WKasnZy9nNVj_VhCZQ@mail.gmail.com>
	<[email protected]>
	<CAPpHfdtGhn_5jfLoepOScyqT+FXYB9QtV-OEprychDcMJco7mw@mail.gmail.com>
	<CA+v5N42PVJH3HbwLE1yC75XR6E5zGnCCdtSUXfgFwtGyPP8XYg@mail.gmail.com>
	<CA+Tgmob03B6h1SMsi7vs9uOX+vrqg_tyhh--mKC3BaTJ08qKYA@mail.gmail.com>
	<[email protected]>
	<[email protected]>
	<[email protected]>

On May 23, 2025, at 13:52, Tom Lane <[email protected]> wrote:

>> I assume you mean that they’re set at initdb time, so there’s no mutability concern? 
> 
> Yeah, I think Peter's right and I'm wrong.  Obviously this ties into
> our philosophical debate about how immutable is immutable.  But as
> long as the functions only depend on locale settings that are fixed
> at database creation, I think it's okay to consider them immutable.
> 
> If you were, say, depending on LC_NUMERIC, it would clearly be unsafe
> to consider that immutable, so I'm not quite sure if this is the end
> of the discussion.  But for what's mentioned in the thread title,
> I think we only care about LC_CTYPE.

Oh, so maybe all this is moot, and Florents can go ahead and add support for the functions to the non-_tz functions?

Should there be some sort of inventory of what functions can be used in what contexts?

D



Attachments:

  [application/pgp-signature] signature.asc (833B, 2-signature.asc)
  download

view thread (56+ 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], [email protected], [email protected], [email protected]
  Subject: Re: PATCH: jsonpath string methods: lower, upper, initcap, l/r/btrim, replace, split_part
  In-Reply-To: <[email protected]>

* 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