Re: using custom scan nodes to prototype parallel sequential scan - Mailing list pgsql-hackers

From Simon Riggs
Subject Re: using custom scan nodes to prototype parallel sequential scan
Date
Msg-id CA+U5nM+Jh9S5S9GJp_2ksuT7yfxqXoA=9Q5VfSt4eKrTsf7-oA@mail.gmail.com
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In response to Re: using custom scan nodes to prototype parallel sequential scan  (Robert Haas <robertmhaas@gmail.com>)
List pgsql-hackers
On 17 November 2014 16:01, Robert Haas <robertmhaas@gmail.com> wrote:

> I still don't know what CONTAINS NO SQL means.

It's a function marking that would indicate we aren't allowed to take
snapshots or run SQL.

I think you should publish the scheme for marking functions as safe
for parallelism, so we can judge that.

-- Simon Riggs                   http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services



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