Indexing in PostgreSQL is a process that involves creating data structures that are optimized to efficiently search and retrieve data from tables.  An index is a copy of a portion of a table, arranged in a way that enables PostgreSQL to quickly locate and retrieve rows that match a

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PostgreSQL provides support for several index types, including B-tree, hash, GiST, SP-GiST, and BRIN. Each index type is tailored to cater to distinct query types and data access patterns. B-Tree index is organized in a tree-like structure, with pointers to child nodes.

Advanced Indexing Strategies in PostgreSQL