Creating time-series tables using partitioning
In many applications, we need to store data in time series. There are various mechanisms in PostgreSQL that are designed to support this.
How to do it…
If you have a huge table and a query to select only a subset of that table, then you may wish to use a block range index (BRIN index). These indexes give performance improvements when the data is naturally ordered as it is added to the table, such as logtime
columns or a naturally ascending OrderId
column. Adding a BRIN index is fast and very easy, and works well for the use case of time-series data logging, though it works less well under intensive updates, even with the new BRIN features in PostgreSQL 14. INSERT
commands into BRIN indexes are specifically designed to not slow down as the table gets bigger, so they perform much better than B-tree indexes for write-heavy applications. B-trees do have faster retrieval performance...