Re: BUG #15573: Need more clarification in Json

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От David G. Johnston
Тема Re: BUG #15573: Need more clarification in Json
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Msg-id CAKFQuwavCh_nbtfms13qSAA0f=rxRkYpVnHu-WOOwYJCpMP33A@mail.gmail.com
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Ответ на BUG #15573: Need more clarification in Json  (PG Bug reporting form <noreply@postgresql.org>)
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On Thursday, January 3, 2019, PG Bug reporting form <noreply@postgresql.org> wrote:

Bug reference:      15573
Logged by:          selva kumaran

 
Please don’t use the bug reporting list for basic user questions.

Right now the issue is my business user needs only the particular column
which have changed from old to new not the whole json record.
i.e i need a select query to find the difference between two json columns(
v_old_data and v_new_data ).

Apply json_each_text to both values, full join on the keys, and filter out pairs with matching values?

David J.

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