From: | Andres Freund <andres(at)anarazel(dot)de> |
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To: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Introduce expression initialization hook? |
Date: | 2017-03-17 22:44:44 |
Message-ID: | 20170317224444.rietmjpwlj2damjq@alap3.anarazel.de |
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Lists: | pgsql-hackers |
Hi,
It looks we're creeping towards agreement in
http://archives.postgresql.org/message-id/20161206034955.bh33paeralxbtluv%40alap3.anarazel.de
It'd be fairly easy to add a hook in its ExecInstantiateExpr(), which'd
allow extensions to provide newer (presumably faster) ways to evaluate
expressions.
I myself have no use for this, I'm determined to get JITed expression
evaluation into core. But I could see others finding it useful.
Even if the concensus were that we want a hook there, I do not plan to
add it before this is committed, and a few other items are addressed.
But the discussion might take some time, so ...
- Andres
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