Thanks Charles. that worked.
> On Mar 7, 2018, at 12:27 PM, Charles Clavadetscher
> wrote:
>
> Hello
>
>> -Original Message-
>> From: Arup Rakshit [mailto:aruprakshit1...@outlook.com]
>> Sent: Mittwoch, 7. März 2018 05:41
>> To: pgsql-general@lists.postgresql.org
>> Subject: help to
Hello
> -Original Message-
> From: Arup Rakshit [mailto:aruprakshit1...@outlook.com]
> Sent: Mittwoch, 7. März 2018 05:41
> To: pgsql-general@lists.postgresql.org
> Subject: help to query json column
>
> Hi,
>
> I would like to select only rows where signature has a non null value. My
>
