Horton

Re: remaining sql/json patches

Tomas Vondra <tomas.vondra@enterprisedb.com>

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From: Tomas Vondra <tomas.vondra@enterprisedb.com>
To: Himanshu Upadhyaya <upadhyaya.himanshu@gmail.com>, Amit Langote <amitlangote09@gmail.com>
Cc: Alvaro Herrera <alvherre@alvh.no-ip.org>, Erik Rijkers <er@xs4all.nl>, jian he <jian.universality@gmail.com>, Andres Freund <andres@anarazel.de>, Andrew Dunstan <andrew@dunslane.net>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2024-03-06T15:34:41Z
Lists: pgsql-hackers

Commits

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

  1. SQL/JSON: Various improvements to SQL/JSON query function docs

  2. SQL/JSON: Fix some obsolete comments.

  3. SQL/JSON: Fix issues with DEFAULT .. ON ERROR / EMPTY

  4. JSON_TABLE: Add support for NESTED paths and columns

  5. Fix JsonExpr deparsing to emit QUOTES and WRAPPER correctly

  6. Fix typo introduced in 6185c9737

  7. Add basic JSON_TABLE() functionality

  8. Avoid splitting errmsg string to span multiple lines

  9. Add SQL/JSON query functions

  10. Implement various jsonpath methods

  11. Add soft error handling to some expression nodes

  12. Adjust populate_record_field() to handle errors softly

  13. Refactor code used by jsonpath executor to fetch variables

  14. Test EXPLAIN (FORMAT JSON) ... XMLTABLE

  15. Simplify productions for FORMAT JSON [ ENCODING name ]

  16. Add trailing commas to enum definitions

  17. doc: add missing <returnvalue> and whitespace

  18. Add more SQL/JSON constructor functions

  19. Rename a nonterminal used in SQL/JSON grammar

  20. Some refactoring to export json(b) conversion functions

  21. Don't include CaseTestExpr in JsonValueExpr.formatted_expr

  22. Code review for commit b6e1157e7d

  23. Pass constructName to transformJsonValueExpr()

  24. Unify JSON categorize type API and export for external use

  25. Make some indentation in gram.y consistent

  26. Allow most keywords to be used as column labels without requiring AS.

  27. Reduce size of backend scanner's tables.

  28. Use perfect hashing, instead of binary search, for keyword lookup.


On 3/6/24 12:58, Himanshu Upadhyaya wrote:
> On Tue, Mar 5, 2024 at 6:52 AM Amit Langote <amitlangote09@gmail.com> wrote:
> 
> Hi,
> 
> I am doing some random testing with the latest patch and found one scenario
> that I wanted to share.
> consider a below case.
> 
> ‘postgres[102531]=#’SELECT * FROM JSON_TABLE(jsonb '{
>          "id" : 12345678901,
>          "FULL_NAME" : "JOHN DOE"}',
>                 '$'
>                 COLUMNS(
>                      name varchar(20) PATH 'lax $.FULL_NAME',
>                      id int PATH 'lax $.id'
>       )
>    )
> ;
> ERROR:  22003: integer out of range
> LOCATION:  numeric_int4_opt_error, numeric.c:4385
> ‘postgres[102531]=#’SELECT * FROM JSON_TABLE(jsonb '{
>          "id" : "12345678901",
>          "FULL_NAME" : "JOHN DOE"}',
>                 '$'
>                 COLUMNS(
>                      name varchar(20) PATH 'lax $.FULL_NAME',
>                      id int PATH 'lax $.id'
>       )
>    )
> ;
>    name   | id
> ----------+----
>  JOHN DOE |
> (1 row)
> 
> The first query throws an error that the integer is "out of range" and is
> quite expected but in the second case(when the value is enclosed with ") it
> is able to process the JSON object but does not return any relevant
> error(in fact processes the JSON but returns it with empty data for "id"
> field). I think second query should fail with a similar error.
> 

I'm pretty sure this is the correct & expected behavior. The second
query treats the value as string (because that's what should happen for
values in double quotes).

regards

-- 
Tomas Vondra
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