fq/format/postgres/pg_heap.md

To see heap page's content

$ fq -d pg_heap -o flavour=postgres14 ".[0]" 16994

To see page's header

$ fq -d pg_heap -o flavour=postgres14 ".[0].page_header" 16994

First and last item pointers on first page

$ fq -d pg_heap -o flavour=postgres14 ".[0].pd_linp[0, -1]" 16994

First and last tuple on first page

$ fq -d pg_heap -o flavour=postgres14 ".[0].tuples[0, -1]" 16994

References

• https://www.postgresql.org/docs/current/storage-page-layout.html