https://www.postgresql.org/docs/current/pageinspect.html
PostgreSQL: Documentation: 18: F.23. pageinspect — low-level inspection of database pages
F.23. pageinspect — low-level inspection of database pages # F.23.1. General Functions F.23.2. Heap Functions F.23.3. B-Tree Functions F.23.4. BRIN Functions …
18 fpostgresqldocumentationpageinspectlow