Re: patch submission: truncate trailing nulls from heap rows to reduce the size of the null bitmap
Josh Berkus <josh@agliodbs.com>
From: Josh Berkus <josh@agliodbs.com>
To: pgsql-hackers@postgresql.org
Date: 2012-05-03T01:01:38Z
Lists: pgsql-hackers
On 5/2/12 10:20 AM, Jameison Martin wrote: > Attached are the following as per various requests: > * test_results.txt: the performance benchmarking results, > > * TestTrailingNull.java: the performance benchmarking code, with a few additional scenarios as per various requests > > * hardinfo_report.txt: some information about the hardware and OS of the system on which the benchmarks were run, and > > * postgresql.conf: the postgresql.conf used when running benchmarks. Note that the changes made to the vanilla postgresql.conf can be identified by looking for the string 'jamie' in the file I attached (there aren't that many) Nice, thanks. I'll try some of my own tests when I get a chance; I have a really good use-case for this optimization. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com