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If you’ve read Crunchy blogs recently you probably noticed by now that we’re all big fans of indexing. Indexing is key to optimizing your database workloads and reducing query times. Postgres now supports quite a few types of indexes and knowing the basics is a key part of working with Postgres. The role of database indexes is similar to the index section at the back of a book. A database index stores information on where a data row is located in a table so the database doesn't have to sc...