From: PG Doc comments form <noreply@postgresql.org>
To: pgsql-docs@lists.postgresql.org
Cc: ameenahsanma@gmail.com
Subject: Table 9-40. json and jsonb Operators - Data could be more informative
Date: Tue, 15 Oct 2019 03:53:07 +0000
Message-ID: <157111158709.25314.5025115144658634556@wrigleys.postgresql.org> (raw)
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/9.4/functions-json.html
Description:
In https://www.postgresql.org/docs/9.4/functions-json.html,
the table 9.40, json and jsonb operators
lists '->>' and '#>>' operators and the difference written is the second one
go to the specific location.
I am not an expert in postgres!
But from my experience,
'#>>' can also parse the data when it is a stringified JSON, having escape
charterers in it!
for ex :
for a scalar value in jsonb : "{\"attr\":\"value\"}", from which we cannot
read keys or values as such,
Query : select (column #>> '{}') from table;
will give parsed json : {"attr" : "value"} from which keys and values can be
extracted.
please mention is there if it is right, as i struggled a lot to figure it
out!
PS: pardon my language, and my concern if it is not right!
Thank you!
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Subject: Re: Table 9-40. json and jsonb Operators - Data could be more informative
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