Horton

Re: SQL/MED - core functionality

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

View thread
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: 2010-11-25T17:30:16Z
Lists: pgsql-hackers 
Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> writes:
> On 25.11.2010 18:28, Tom Lane wrote:
>> 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.

> That seems quite awkward to work with. Let's at least make it a Node *, 
> so that you can store a Value or List there, or anything else that 
> already has copyObject support.

Yeah, that works.  A struct could be emulated by using a List with a
known order of elements.  If someone did need a binary blob, they could
represent it as a Const of type bytea.

			regards, tom lane