Re: SQL/JSON: functions

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От Himanshu Upadhyaya
Тема Re: SQL/JSON: functions
Дата
Msg-id CAPF61jD7hJQZXi1oQs7SyZeJ1uJ1JDE8aUmTFovLpGfOiOdKLA@mail.gmail.com
обсуждение исходный текст
Ответ на Re: SQL/JSON: functions  (Himanshu Upadhyaya <upadhyaya.himanshu@gmail.com>)
Ответы Re: SQL/JSON: functions  (Andrew Dunstan <andrew@dunslane.net>)
Список pgsql-hackers
On Thu, Dec 9, 2021 at 7:34 PM Himanshu Upadhyaya
<upadhyaya.himanshu@gmail.com> wrote:
> 3)
> Is not that result of the two below queries should match because both are trying to retrieve the information from the
JSONobject.
 
>
> postgres=# SELECT JSON_OBJECT('track' VALUE '{
>     "segments": [
>       {
>         "location":   [ 47.763, 13.4034 ],
>         "start time": "2018-10-14 10:05:14",
>         "HR": 73
>       },
>       {
>         "location":   [ 47.706, 13.2635 ],
>         "start time": "2018-10-14 101:39:21",
>         "HR": 135
>       }
>     ]
>   }
> }')->'track'->'segments';
>  ?column?
> ----------
>
> (1 row)
>
> postgres=# select '{
>   "track": {
>     "segments": [
>       {
>         "location":   [ 47.763, 13.4034 ],
>         "start time": "2018-10-14 10:05:14",
>         "HR": 73
>       },
>       {
>         "location":   [ 47.706, 13.2635 ],
>         "start time": "2018-10-14 10:39:21",
>         "HR": 135
>       }
>     ]
>   }
> }'::jsonb->'track'->'segments';
>                                                                              ?column?
>
-------------------------------------------------------------------------------------------------------------------------------------------------------------------
>  [{"HR": 73, "location": [47.763, 13.4034], "start time": "2018-10-14 10:05:14"}, {"HR": 135, "location": [47.706,
13.2635],"start time": "2018-10-14 10:39:21"}]
 
> (1 row)
>
just wanted to check your opinion on the above, is this an expected behaviour?

> Few comments For 0002-SQL-JSON-constructors-v59.patch:
Also, any thoughts on this?

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



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