Release of Postgres-XC 1.0.1
Postgres-XC, read/write-scalable multi-master symmetric cluster based on PostgreSQL, version 1.0.1 has been released today. This minor release is based on the latest PostgreSQL 9.1.5+alpha, meaning...
View ArticlePostgres 9.3 feature highlight: writable foreign tables
A new set of APIs for foreign data wrappers has been added to allow writable operations on foreign sources. This feature has been committed by Tom Lane a couple of days ago. commit...
View ArticlePostgres 9.3 feature highlight: JSON operators
Postgres 9.3 is going to be a great release for JSON data type. After having a look at the new functions for data generation, let’s look at the new JSON features that the commit below brings. commit...
View ArticlePostgres 9.4 devel: MVCC catalog access
A couple of days ago I saw an email about MVCC catalog access on the PostgreSQL hackers mailing list. When evaluating if a given heap tuple of a table is valid or not, PostgreSQL uses a transaction...
View ArticlePostgres 9.4 devel: MVCC catalog access take 2
Based on a 2nd version of the patch implementing MVCC catalog access, here is a second set of results after the first try done last week. The same tests as last week are done, aka the backend startup...
View ArticleTuning disks and Linux for Postgres
Tuning the OS on which is running a database server is important to get good performance for an application. There are many tricks to know when tuning a system, being generally dependent on the...
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