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From: Tom Lane <[email protected]>
To: David E. Wheeler <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Cc: jian he <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: Document DateStyle effect on jsonpath string()
Date: Wed, 11 Sep 2024 12:06:27 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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"David E. Wheeler" <[email protected]> writes:
> On Sep 11, 2024, at 11:11, Tom Lane <[email protected]> wrote:
>> What "let result be stringified" behavior are you thinking of,
>> exactly?  AFAICS there's not sensitivity to timezone unless you
>> use the _tz variant, otherwise it just regurgitates the input.

> There is stringification of a time, date, or timestamp value, which
> has no TZ, but is still affected by DateStyle.

What I understood you to be referencing is what happens without
string(), which AFAICS does not result in any timezone rotation:

regression=# set timezone = 'America/New_York';
SET
regression=# select jsonb_path_query('"2023-08-15 12:34:56-09"', '$.timestamp_tz()');
      jsonb_path_query       
-----------------------------
 "2023-08-15T12:34:56-09:00"
(1 row)

I think I'd be content to have string() duplicate that behavior
--- in fact, it seems like it'd be odd if it doesn't match.

			regards, tom lane

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