Today, I gave a presentation on "pgstattuple2", which would make - TopicsExpress



          

Today, I gave a presentation on "pgstattuple2", which would make estimating dead tuples up to x100 faster than existing pgstattuple function. It uses block sampling (statistic) method to estimate dead tuple ratio of the whole table. This is one of my accomplishments while a 3-months intensive study of Statistics, and will post it to -hackers in a few days. pgstattuple2: デッドタプル推定のための統計的手法 slideshare.net/uptimejp/pgstattuple2-24201980 snaga/postgres https://github/snaga/postgres/tree/pgstattuple2 というわけで、統計を勉強していた成果の第一弾をリリース。ちょっとはアウトプットできた感がある。エンジニアリングという観点で見ると、(今さらながら)統計はとても面白いと思う。
Posted on: Sat, 13 Jul 2013 14:18:20 +0000

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