How pg_query rewrites, deparses & formats any valid Postgres query (PConf.dev 2026)

Whole-channel inclusion: PostgreSQL Development Conference is an honest teaching channel (title sample + 3 transcripts read: The transcripts show in-depth expert technical talks explaining PostgreSQL internals (partitioning planner complexity, streaming/vectored I/O), consistent with genuine teaching content.); this title passed a strict title check (sonnet) after a labelling pass.