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Re: PATCH: jsonpath string methods: lower, upper, initcap, l/r/btrim, replace, split_part

Alexander Korotkov <aekorotkov@gmail.com>

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From: Alexander Korotkov <aekorotkov@gmail.com>
To: Florents Tselai <florents.tselai@gmail.com>
Cc: pgsql-hackers <pgsql-hackers@lists.postgresql.org>
Date: 2024-09-26T10:57:25Z
Lists: pgsql-hackers 
Hi, Florents!

On Wed, Sep 25, 2024 at 9:18 PM Florents Tselai
<florents.tselai@gmail.com> wrote:
> This patch is a follow-up and generalization to [0].
>
> It adds the following jsonpath methods:  lower, upper, initcap, l/r/btrim, replace, split_part.
>
> It makes jsonpath able to support expressions like these:
>
> select jsonb_path_query('"   hElLo WorlD "',  '$.btrim().lower().upper().lower().replace("hello","bye") starts with "bye"');
> select jsonb_path_query('"abc~@~def~@~ghi"', '$.split_part("~@~", 2)')

Did you check if these new methods now in SQL standard or project of
SQL standard?

------
Regards,
Alexander Korotkov
Supabase

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Add additional jsonpath string methods

  2. Rename jsonpath method arg tokens

  3. Fix transient memory leakage in jsonpath evaluation.

  4. Make jsonpath .string() be immutable for datetimes.