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Re: BUG #15287: postgres_fdw: the "WHERE date_trunc('day', dt) ='YYYY-MM-DD' does not push to remote. - Mailing list pgsql-bugs

From Alvaro Herrera
Subject Re: BUG #15287: postgres_fdw: the "WHERE date_trunc('day', dt) ='YYYY-MM-DD' does not push to remote.
Date
Msg-id 20180720174004.ixorgubh6b4uv2e6@alvherre.pgsql
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In response to Re: BUG #15287: postgres_fdw: the "WHERE date_trunc('day', dt) = 'YYYY-MM-DD' does not push to remote.  (Andrew Gierth <andrew@tao11.riddles.org.uk>)
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On 2018-Jul-20, Andrew Gierth wrote:

> (or in the case of date_trunc and extract, maybe they need to be split
> up into separate functions so that we can properly distinguish the
> immutable from the mutable cases)

I think for partition pruning this would be useful too.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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