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PostgreSQL B-Tree Index Explained - PART 2 Image
  • Sebastian Brestin
  • Software Engineer
  • 08 May 2020

PostgreSQL B-Tree Index Expla...

An index is an additional database structure which has the purpose of improving read performance at the cost of extra storage. For more details abo...

Spark Secondary Sort Image
  • Sebastian Brestin
  • Software Engineer
  • 16 Apr 2019

Spark Secondary Sort

The purpose of the article is to present two secondary sort implementations using pySpark. The first implementation uses groupByKey while the secon...

Postgres data partitioning and Django Image
  • Sebastian Brestin
  • Software Engineer
  • 02 Feb 2018

Postgres data partitioning an...

Nowadays, Big Data is not only a trend, but also a new paradigm leading to radical changes in the software development methodologies. Because CPU c...