From: | David Fetter <david(at)fetter(dot)org> |
---|---|
To: | PostgreSQL Development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Efficient output for integer types |
Date: | 2019-09-18 03:42:01 |
Message-ID: | 20190918034201.GX31596@fetter.org |
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Thread: | |
Lists: | pgsql-hackers |
On Tue, Sep 17, 2019 at 09:01:57AM +0200, David Fetter wrote:
> On Tue, Sep 17, 2019 at 08:55:05AM +0200, David Fetter wrote:
> > On Sun, Sep 15, 2019 at 09:18:49AM +0200, David Fetter wrote:
> > > Folks,
> > >
> > > Please find attached a couple of patches intended to $subject.
> > >
> > > This patch set cut the time to copy ten million rows of randomly sized
> > > int8s (10 of them) by about a third, so at least for that case, it's
> > > pretty decent.
> >
> > Added int4 output, removed the sprintf stuff, as it didn't seem to
> > help in any cases I was testing.
>
> Found a couple of "whiles" that should have been "ifs."
Factored out some inefficient functions and made the guts use the more
efficient function.
Best,
David.
--
David Fetter <david(at)fetter(dot)org> http://fetter.org/
Phone: +1 415 235 3778
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Attachment | Content-Type | Size |
---|---|---|
v4-0001-Make-int4-and-int8-operations-more-efficent.patch | text/x-diff | 14.5 KB |
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