Re: JIT in PostgreSQL 12 ?

Andreas Karlsson <[email protected]>
Newsgroups gmane.comp.db.postgresql.performance
Message-ID <[email protected]> 
On 5/29/19 10:02 AM, Tobias Gierke wrote:
> 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 ?

No, the compilation still happens once for each worker. PostgreSQL 12 
includes some smaller performance improvements for the JIT but nothing 
big like that.

Andreas
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