RE: "JPPD bypassed: DISTINCT clause" in 19c

From: Noveljic Nenad <>
Date: Fri, 4 Sep 2020 13:07:32 +0000
Message-ID: <>

Thank you, Sayan.

As opposed to your case, where you referenced json & co in the from clause, I used it only in the select clause.

In this particular case, I don’t see any reason for bypassing JPPD – JSON_OBJECT is applied at the end.

In fact, this used to work in 12c (tested on, but it doesn’t as of 18c (tested on and

Do you have any workaround when JSON_OBJECT is in the select clause of the main query block?

Best regards,


From: Sayan Malakshinov <> Sent: Freitag, 4. September 2020 14:55
To: Noveljic Nenad <> Cc: Andy Sayer <>; ORACLE-L ( <> Subject: Re: "JPPD bypassed: DISTINCT clause" in 19c

Hi Nenad,

Yes, JPPD doesn't work in case of table(), XMLTABLE and JSON_TABLE:

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Received on Fri Sep 04 2020 - 15:07:32 CEST

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