Horton

Re: Optimize numeric multiplication for one and two base-NBASE digit multiplicands.

Joel Jacobson <joel@compiler.org>

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From: "Joel Jacobson" <joel@compiler.org>
To: "Dean Rasheed" <dean.a.rasheed@gmail.com>
Cc: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2024-07-02T20:13:04Z
Lists: pgsql-hackers 
On Tue, Jul 2, 2024, at 22:10, Joel Jacobson wrote:
> * v4-optimize-numeric-mul_var-small-var1-arbitrary-var2.patch

Instead of these boundary checks, maybe it would be cleaner to just
skip this optimization if there are too few res_ndigits?

/Joel

Commits

  1. Optimise numeric multiplication for short inputs.

  2. Optimise numeric division for 3 and 4 base-NBASE digit divisors.

  3. Optimise numeric division for one and two base-NBASE digit divisors.