Re: patch submission: truncate trailing nulls from heap rows to reduce the size of the null bitmap
От | Josh Berkus |
---|---|
Тема | Re: patch submission: truncate trailing nulls from heap rows to reduce the size of the null bitmap |
Дата | |
Msg-id | 4FA1D8F2.8000009@agliodbs.com обсуждение исходный текст |
Ответ на | Re: patch submission: truncate trailing nulls from heap rows to reduce the size of the null bitmap (Jameison Martin <jameisonb@yahoo.com>) |
Ответы |
Re: patch submission: truncate trailing nulls from heap
rows to reduce the size of the null bitmap
Re: patch submission: truncate trailing nulls from heap rows to reduce the size of the null bitmap |
Список | 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.confcan 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
В списке pgsql-hackers по дате отправления: