Re: Implement <null treatment> for window functions

From: Krasiyan Andreev <krasiyan(at)gmail(dot)com>
To: Vik Fearing <vik(at)postgresfriends(dot)org>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Implement <null treatment> for window functions
Date: 2020-11-12 22:35:20
Message-ID: CAN1Pwon3QWgHjixYORg=rufKOOWZ4enviDWjEdLnBPQFcG7tDg@mail.gmail.com
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Hi, it looks like Vik Fearing's patch does not apply anymore, because there
are many conflicts with recent changes, fixed patch attached.
I am interested in reviewing and testing it for the next commitfest, if
it's design and implementation is found to be acceptable.
Additionally, if it is also acceptable, I can add support for handling
negative indexes for nth_value(), to be able to reverse order from
first/from last for the window frame.

Attachment Content-Type Size
0001-implement-null-treatment-for-window-functions.patch text/x-patch 61.8 KB

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