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help / color / mirror / Atom feedFrom: Chao Li <[email protected]>
To: Alexandra Wang <[email protected]>
Cc: jian he <[email protected]>
Cc: Nikita Malakhov <[email protected]>
Cc: Vik Fearing <[email protected]>
Cc: Mark Dilger <[email protected]>
Cc: Matheus Alcantara <[email protected]>
Cc: Peter Eisentraut <[email protected]>
Cc: Andrew Dunstan <[email protected]>
Cc: Nikita Glukhov <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: David E. Wheeler <[email protected]>
Subject: Re: SQL:2023 JSON simplified accessor support
Date: Tue, 2 Sep 2025 10:43:58 +0800
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAK98qZ2E-uc10nf4SR9K7Z8VeDPLeTW-+xtdh5Zej54X=mgZcA@mail.gmail.com>
References: <[email protected]>
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Hi Alex,
Thank you so much for such a detailed explanation.
> On Aug 30, 2025, at 08:53, Alexandra Wang <[email protected]> wrote:
>
>
>
> I hope this long explanation helps!
>
> [1] https://www.postgresql.org/docs/current/functions-json.html#SQLJSON-QUERY-FUNCTIONS
>
>
I used to only use the “->” and “->>” accessors for jsonb statements. After some research, I think my misunderstanding was about the slice operator [x:y]. I thought it could return a new array, however it actually returns a sequence.
I revisited the patch diffs again, and got a few other comments. Let me raise them in a separate email.
Regards,
--
Chao Li (Evan)
HighGo Software Co., Ltd.
https://www.highgo.com/
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Subject: Re: SQL:2023 JSON simplified accessor support
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