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From: Himanshu Upadhyaya <[email protected]>
To: Tomas Vondra <[email protected]>
Cc: Amit Langote <[email protected]>
Cc: Alvaro Herrera <[email protected]>
Cc: Erik Rijkers <[email protected]>
Cc: jian he <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: Andrew Dunstan <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: remaining sql/json patches
Date: Thu, 7 Mar 2024 10:48:02 +0530
Message-ID: <CAPF61jBm+_QCwDg32_K+BgNKf09isU9g3o8CLW2kUDLZ5=28Hw@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>
	<CA+HiwqGtdVCg-KboUUU=svwukwXGT4EOFOk3eCZLz6h-d6YLNw@mail.gmail.com>
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	<[email protected]>

On Wed, Mar 6, 2024 at 9:04 PM Tomas Vondra <[email protected]>
wrote:

>
>
> 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).
>
>  ok, Then why does the below query provide the correct conversion, even if
we enclose that in double quotes?
‘postgres[102531]=#’SELECT * FROM JSON_TABLE(jsonb '{
         "id" : "1234567890",
         "FULL_NAME" : "JOHN DOE"}',
                '$'
                COLUMNS(
                     name varchar(20) PATH 'lax $.FULL_NAME',
                     id int PATH 'lax $.id'
      )
   )
;
   name   |     id
----------+------------
 JOHN DOE | 1234567890
(1 row)

and for bigger input(string) it will leave as empty as below.
‘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)

seems it is not something to do with data enclosed in double quotes but
somehow related with internal casting it to integer and I think in case of
bigger input it is not able to cast it to integer(as defined under COLUMNS
as id int PATH 'lax $.id')

‘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)
)

if it is not able to represent it to integer because of bigger input, it
should error out with a similar error message instead of leaving it empty.

Thoughts?

-- 
Regards,
Himanshu Upadhyaya
EnterpriseDB: http://www.enterprisedb.com


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  Subject: Re: remaining sql/json patches
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