JIT in PostgreSQL 12 ?

From: Tobias Gierke <tobias(dot)gierke(at)code-sourcery(dot)de>
To: PostgreSQL mailing lists <pgsql-performance(at)postgresql(dot)org>
Subject: JIT in PostgreSQL 12 ?
Date: 2019-05-29 08:02:50
Message-ID: b1705e1a-90dc-f614-74cb-2e003a457758@code-sourcery.de
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Hi,

Browsing the PostgreSQL 12 release notes I noticed that JIT is now
enabled by default. Having not followed PostgreSQL development closely -
does this mean that compilation results are now getting cached and
compilation is no longer executed separately for each worker thread in a
parallel query ?

Cheers,
Tobias

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