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V4 protocol, extensible?

From: Ken Johanson <pg-user(at)kensystem(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: V4 protocol, extensible?
Date: 2007-01-04 23:08:52
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Lists: pgsql-hackers
In another thread I was made aware that current protocol may not be 
easily extensible (if at all), and so the backend-data a certain driver 
needs may not be so easily added.

So if there is not already a roadmap for this, one idea may be to use 
some kind of key-length-value type encoding, which seems to be one of 
the most accepted formats for extensible streams (though I am by no 
means an expert). Names could just be ints/oids and not chars to their 
real name.

Just wanted to see if anyone had any thoughts on this, or if my 
presumption that metatdata in the current V3 cannot be easily added too, 
is wrong.

Thank you,

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