Postgres and MariaDB are both open-source relational databases but serve different use cases. Postgres offers a richer type system (JSONB, arrays, geometric types), stronger SQL standards compliance, and a deep extension ecosystem (PostGIS, pgvector, Citus). MariaDB excels at MySQL wire-protocol compatibility, Galera multi-master replication, and optional ColumnStore analytics. Both are row-oriented OLTP databases that struggle with large-scale analytical queries. The post compares architecture, replication, JSON handling, and performance, then recommends offloading OLAP workloads to ClickHouse via CDC (logical replication for Postgres, binary log for MariaDB). Tinybird is presented as a managed ClickHouse layer that integrates with either database for sub-second analytical query latency.
