Recently, I've been doing a research about data warehouse optimizations and techniques. For example, Oracle uses parallel queries, materialized views with different refresh modes, star transformations in queries, etc. Since I've never worked with PostgreSQL in an OLAP environment, I thought maybe the community could guide me to find what features and techniques PostgreSQL provides for its users and it would be especially useful if someone could point out a previous work comparing PostgreSQL with another RDBMs in this regard. Also, I'm interested if there's any interesting books, articles or anything related PostgreSQL and Data Warehouses optimizations.
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