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Re: json api WIP patch

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: json api WIP patch
Date: 2013-01-16 15:28:49
Message-ID: CA+TgmobH0G7EYsuCVGRzvmmXTCAXzhhiYheU3BS6kHfLAU0aXQ@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On Mon, Jan 14, 2013 at 11:02 PM, Andrew Dunstan <andrew(at)dunslane(dot)net> wrote:
> After a couple of iterations, some performance enhancements to the json
> parser and lexer have ended up with a net performance improvement over git
> tip. On our test rig, the json parse test runs at just over 13s per 10000
> parses on git tip and approx 12.55s per 10000 parses with the attached
> patch.
>
> Truth be told, I think the lexer changes have more than paid for the small
> cost of the switch to an RD parser. But since the result is a net
> performance win PLUS some enhanced functionality, I think we should be all
> good.

Yeah, that sounds great.  Thanks for putting in the effort.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


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