Re: CustomScan and readfuncs.c - Mailing list pgsql-hackers

From Robert Haas
Subject Re: CustomScan and readfuncs.c
Date
Msg-id CA+Tgmob7C-w2b9thditZ-g9=WMRKww81GSir5nDX1ya2AqFpgA@mail.gmail.com
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In response to Re: CustomScan and readfuncs.c  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
On Sun, Jul 26, 2015 at 11:14 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Um ... wait a second.  There is no support in readfuncs for any
> plan node type, and never has been, and I seriously doubt that there
> ever should be.

As KaiGai says, the parallel query stuff contemplates changing this;
how else will we get the plan from the master to each worker?  We
could invent a bespoke serialization format, but that seems to have
exactly nothing to recommend it.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company



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