Citus Blog

Indexes are an essential tool for optimizing database performance and are becoming ever more important with big data. However, as the volume of data increases, index maintenance often becomes a write bottleneck, especially for advanced index types which use a lot of CPU time for every row that gets written. Index creation may also become prohibitively expensive as it may take hours or even days to build a new index on terabytes of data in postgres. As of Citus 6.0, we’ve made creating and maintaining indexes that much faster through parallelization.