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type recv/send functions

From: Greg Stark <gsstark(at)mit(dot)edu>
To: pgsql-hackers(at)postgresql(dot)org
Subject: type recv/send functions
Date: 2006-05-29 20:09:18
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
Is it just me or are the send/recv strangely asymmetric?

It seems like the recv function is designed to avoid copying so the type can
pick the data straight out of the data stream without passing through
intermediate representations.

But the send function forces the type to copy the data into a temporary bytea,
which is presumably then copied into the actual data stream. 

Wouldn't the natural thing to do be to provide the StringInfo buffer with a
cursor for the type's send function to stuff the bytea into?



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