Satoshi Nagayasu: Performance impact of the pg_stat_statements module
When I tweeted that I thought pg_stat_statements should be integrated to the core a few weeks ago, Josh responded me that it was up to submitting a patch and figuring out the performace overhead. So,...
View ArticleLeo Hsu and Regina Obe: Many PostGIS FOSS4G 2011 videos have landed
FOSS 4G 2011. My resident PostGIS developer strk says he can't see them because blip.tv is using some sort of proprietary video swf format. I can't really tell what he is talking about. Does anyone...
View ArticleGuillaume LELARGE: How to log superuser queries
A few weeks ago, one of my customers asked me if they could log all queries coming from superuser users. They have to make sure that none of their DBA could fire a query without that query being...
View ArticlePostgreSQL Weekly News: PostgreSQL Weekly News October 30th 2011
The Call for Papers is open for PostgreSQL Session #3, which will be held in Paris, Feb 2nd, 2012. The deadline for proposals is the 30th November 2011 and selected speakers will be notified by the...
View ArticleAndrew Dunstan: More PLV8 work
Yesterday I committed preliminary cursor support and support for anonymous records, fully recursive with arrays so you can have arrays of records with array fields and so on, for PLV8, and they will be...
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Joe Abbate: PostgreSQL Conference Brasil 2011
This Thursday and Friday I’ll be attending PGBR 2011 in Brazil (No! not that Brazil, although I do recommend the movie). Looking at the schedule, here are my tentative picks: Day 1 Deciding on what to...
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Robert Haas: Fast Counting
Since I wrote my previous blog entry on index-only scans, quite a bit of additional work has been done. Tom Lane cleaned up the code and improved the costing model, but possibly the most interesting...
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Joe Abbate: The Phantom of the Database – Part 1
Scenario: A row with “Seven Samurai” (notice two spaces between the words) as the movie title and 1956 as the release year, in the film table. Plot: User Alice updates the row to remove the extra...
View ArticleLeo Hsu and Regina Obe: How to create an n-column table really fast
Ever have the need to create a holding table say spreadsheet data with say 100 columns. You need to create a table to hold this stuff. Or perhaps you were feeling in a sadist mood and wanted to abuse...
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Chris Travers: 10 Underrated Features of PostgreSQL
Here are a list of features which I think are generally underrated in PostgreSQL and why. Many though not all of these are being used in the development version of LedgerSMB, and more of these will...
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Andreas Scherbaum: German-speaking PostgreSQL Conference - Last chance for...
Andreas 'ads' ScherbaumThe German-Speaking PostgreSQL Conference takes place on November 11th in Oberhausen, Germany. Last chance for your registration! We are happy to announce Astrid Emde as Keynote...
View ArticleLeo Hsu and Regina Obe: What objects are in a PostgreSQL installed extension
As mentioned in Lessons Learned Packaging PostGIS extensions, I am working on PostGIS 2.0.0 extension packaging. One of the things I wanted to know was what objects, types, functions etc were installed...
View ArticleTomas Vondra: Collection query histogram
If you're using PostgreSQL and need to track performance anomalies, you probably know the option log_min_duration and maybe even auto_explain contrib module, that allow you to react to queries that...
View ArticlePostgreSQL User Group Announcements: PDXPUG November Meeting in two weeks
When: 7-9pm Thu November 17, 2011 Where: FreeGeek Who: Mark Wong What: collectd and Postgres This presentation is primarily focused on how to use collectd (http://collectd.org/) to collect data from...
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Magnus Hagander: PGConf.EU 2011 - the feedback is in
Almost exactly a week later than what we said, I have finally closed down the feedback system for PostgreSQL Conference Europe 2011. I think we all needed slightly more time than we expected to recover...
View ArticlePostgreSQL User Group Announcements: December 6th Josh Berkus: Postgres and...
Josh Berkus is a core Team member of the PosgreSQL community. He will be in Boston of for LISA conference and has agreed to speak at our User Group meeting. Here are the details: Tuesday, December 6,...
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Chris Travers: Elegance and Simplicity
When it comes to software engineering, I always think back to my first year Calculus teacher, Mike Lavender, and his admonishment that "in mathematics, power tools are consider inelegant where hand...
View ArticlePostgreSQL Weekly News: PostgreSQL Weekly News November 6th 2011
pgpool-II 3.0.5, a connection pooler and more, released. http://pgfoundry.org/projects/pgpool/
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Magnus Hagander: PGConf.EU 2011 - the speakers and the presentations
This part of the feedback is almost turning into a repost year from year. But it's a good thing to be reposting if any, so I'm doing it anyway. To start with, just take a look at these graphs: Those...
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Thom Brown: Writeable Common Table Expressions
There have previously been various posts on Writeable Common Table Expressions (wCTEs) which demonstrate either performance gains or simple examples of how they work, but recently when giving some...
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