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

Andrew Dunstan <andrew@dunslane.net>

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From: Andrew Dunstan <andrew@dunslane.net>
To: Marcos Pegoraro <marcos@f10.com.br>
Cc: "David E. Wheeler" <david@justatheory.com>, Florents Tselai <florents.tselai@gmail.com>, pgsql-hackers <pgsql-hackers@lists.postgresql.org>, Chao Li <li.evan.chao@gmail.com>, Álvaro Herrera <alvherre@kurilemu.de>, Tom Lane <tgl@sss.pgh.pa.us>, Peter Eisentraut <peter@eisentraut.org>, Robert Haas <robertmhaas@gmail.com>, Alexander Korotkov <aekorotkov@gmail.com>, jian he <jian.universality@gmail.com>
Date: 2026-04-03T13:36:31Z
Lists: pgsql-hackers 
On 2026-04-03 Fr 7:51 AM, Andrew Dunstan wrote:
>
>
> On 2026-04-02 Th 5:10 PM, Marcos Pegoraro wrote:
>> Em qui., 2 de abr. de 2026 às 16:22, Andrew Dunstan 
>> <andrew@dunslane.net> escreveu:
>>
>>     Committed.
>>
>> There is a typo here.
>> <literal>jsonb_path_query('"xyxtrimyyx"', '$.btrim("xyz")')</literal>
>> should be
>> <literal>jsonb_path_query('"xyztrimxyz"', '$.btrim("xyz")')</literal>
>>
>>
>
> Good catch, will fix.
>
>
>

On second thoughts, I don't think this is a typo. btrim() removes 
leading and trailing sequences of any characters in the argument string.:


andrew@~=# select jsonb_path_query('"xyxtrimyyx"', '$.btrim("xyz")');
  jsonb_path_query
------------------
  "trim"
(1 row)


cheers


andrew

--
Andrew Dunstan
EDB:https://www.enterprisedb.com

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.