![]() While Greenplum would be able to crunch your data in parallel on the cluster. ![]() ![]() While they share many things in common, the differences between them are significant and can be a source of confusion both for newcomers to database management and for experienced DBAs. It is an advanced version of SQL and hence provides many additional features. FebruOverview PostgreSQL and MySQL are two of the most popular open-source relational databases today. SQL Server is another implementation, and Oracle is another. But PostgreSQL is always at the upper hand when it comes to different features. In contrast, when you need a OLAP workload, Postgres can offer you only a single host processing, no partitioning with dynamic partition elimination, no compression, no columnar store. The main differences between the two are summarized below: Architecture: SQLite is a serverless database management system that can be embedded directly into an application, while PostgreSQL is a client-server database management system that requires a separate server process to be running on the machine to handle database requests. PostgreSQL is a particular implementation of that language. Postgres in contrast can go to hundreds of thousands of TPS with the right tuning. Greenplum has a big overhead for transaction processing as it is a distributed system, so don't expect this to deliver you more than 500-600 TPS. The WebApp backend will always create OLTP workload. And in general, there is not a single solution on the market that can be good at both OLAP and OLTP at the same time, you can find my thoughts on it here While both systems share many core features, there are some key differencesthe major one being that PostgreSQL is open source and SQL Server is owned by Microsoft. In PostgreSQL vs SQLite, SQLite is defined as an open-source relational database management system that is a file-based system popular for its reliability, portability, strong performance, and lightweight nature that supports a low-memory environment also, and it provides several features like transactional serverless that supports transaction w. Greenplum is an MPP analytical (OLAP) DBMS.
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