Horton

Re: SQL/MED - core functionality

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: Itagaki Takahiro <itagaki.takahiro@gmail.com>, Shigeru HANADA <hanada@metrosystems.co.jp>, pgsql-hackers@postgresql.org
Date: 2010-11-25T16:28:45Z
Lists: pgsql-hackers 
Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> writes:
> Hmm, I see, cached plans are planned in a shorter-lived context first, 
> and copied to permanent storage afterwards. Needs more thought then. 
> Maybe the FDW needs to provide a copyFdwPlan() function to copy FdwPlans 
> returned by that FDW.

Or just specify a format for the extra information.  Perhaps it could be
thought of as being a value of type bytea?  Obviously we can't just have
a fixed amount of info, but maybe a blob with a length word is enough.

			regards, tom lane