Protocol 2 and query parameters support

From: Konstantin Izmailov <pgfizm(at)gmail(dot)com>
To: "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org>
Subject: Protocol 2 and query parameters support
Date: 2017-04-23 19:08:51
Message-ID: CAAw-Msdz-8a0G_1a2kr5VJ9ArfHdRk4TremJsC2BPv27OWOAFw@mail.gmail.com
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Does Postgres protocol 2 support query parameters? e.g.:
SELECT colA FROM tbl WHERE colB=$1

Some systems (Presto) are still using protocol 2, and I need to understand
the scope of changes in the middleware to support protocol 2.

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