<ul><li>When you run a simple SQL query, such as SELECT * FROM table_name, a chain of powerful events is set in motion in the PostgreSQL engine.</li><li>The query is sent to the PostgreSQL server, which handles multiple databases and interacts with various objects.</li><li>The query goes through stages of transformation, including parsing, analysis, rewriting, planning, and execution, resulting in the retrieval of actual rows and the return of results.</li><li>Behind the scenes, various background processes, such as checkpointer, WAL writer, autovacuum, archiver, background writer, and stats collector, support every query.</li></ul>

🎬 Behind the Scenes of a Simple SQL Query in PostgreSQL

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