Latest articles

Switching layout and key disposition experience

This post has no intention to discuss what layout might be better in terms of efficiency or effort. There are a considerable amount of great articles related to all the analisys across different layouts, and even tools for ingesting text …

Clickhouse sampling on MergeTree engine.

Why sampling is important and what you need to be aware of? When dealing with very large amount of data, you probably want to run your queries only for a smaller dataset in your current tables. Specially if your dataset is not fitting in …

Import data from Redshift into Clickhouse in a single command.

Scope If you heard about Clickhouse and you are wondering how to test with your residing data in Redshift, here is a command that will show you a few tips to make you speed up. Update (July 4th): There is a serie of posts about Clickhouse …

postgres_fdw estimated overhead

Concept In the current concept, we are going to combine Foreign tables inheritance with the postgres_fdw extension, both being already available features since 9.5 version. Cross-node partitioning allows a better data locality and a more …

Simple and manual sharding on PostgreSQL.

Concept In the current concept, we are going to combine Foreign tables inheritance with the postgres_fdw extension, both being already available features since 9.5 version. Cross-node partitioning allows a better data locality and a more …