Re: In PG12, query with float calculations is slower than PG11 - Mailing list pgsql-hackers

From Emre Hasegeli
Subject Re: In PG12, query with float calculations is slower than PG11
Date
Msg-id CAE2gYzx3nEb0MbBwV1GtbmOYZ1TPKcPLOkeeZ8ZxFb=WCvX8sg@mail.gmail.com
Whole thread Raw
In response to Re: In PG12, query with float calculations is slower than PG11  (Amit Langote <amitlangote09@gmail.com>)
List pgsql-hackers
> Fwiw, also tried the patch that Kuroda-san had posted yesterday.

I run the same test case too:

clang version 7.0.0:

HEAD 2548.119 ms
with patch 2320.974 ms

clang version 8.0.0:

HEAD 2431.766 ms
with patch 2419.439 ms

clang version 9.0.0:

HEAD 2477.493 ms
with patch 2365.509 ms

gcc version 7.4.0:

HEAD 2451.261 ms
with patch 2343.393 ms

gcc version 8.3.0:

HEAD 2540.626 ms
with patch 2299.653 ms



pgsql-hackers by date:

Previous
From: Kasahara Tatsuhito
Date:
Subject: Re: Tid scan increments value of pg_stat_all_tables.seq_scan. (butnot seq_tup_read)
Next
From: Robert Haas
Date:
Subject: Re: Is custom MemoryContext prohibited?