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PostgreSQL’s system catalogs are at the heart of how the database organizes and manages information.<br>Far more than just metadata tables, these catalogs store essential details about databases, schemas, tables, indexes, functions, roles, and almost every object inside Postgres.<br>A solid understanding of catalogs not only helps developers and DBAs write powerful queries for introspection but also provides deeper insights into how Postgres operates <a href="http://internally.in/" rel="nofollow" target="_blank">internally.In</a> this session, we will explore the structure and purpose of key catalogs, demonstrate practical queries to retrieve metadata, and highlight how catalogs differ from views like information_schema.<br>Attendees will learn how to use system catalogs for tasks such as schema discovery, dependency tracking, and debugging.<br>By the end of the talk, you’ll be equipped with the knowledge to confidently navigate PostgreSQL’s catalogs and leverage them to make your day-to-day work with Postgres more efficient and transparent.
