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Re: Extracting data from jsonb array? - Mailing list pgsql-general

From David G. Johnston
Subject Re: Extracting data from jsonb array?
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Msg-id CAKFQuwaxB6bK_CSJaWM=OXjXya7BaV+3Pwpp9e4dPPSfB0CSrQ@mail.gmail.com
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In response to Re: Extracting data from jsonb array?  (Steve Baldwin <steve.baldwin@gmail.com>)
Responses Re: Extracting data from jsonb array?  (Ken Tanzer <ken.tanzer@gmail.com>)
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On Mon, Dec 7, 2020 at 4:13 PM Steve Baldwin <steve.baldwin@gmail.com> wrote:
Try:

select _message_body->'Charges'->>'Name' from ...

Not so much..."Charges" is an array so "->>" doesn't do anything useful.

The OP needs to use "json_array_elements" to navigate past the array and get to the next layer of the json where ->>'Name' will then work.

For v12 and newer readers, SQL/JSON Path should probably be used instead.

David J.

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