supabase-cli/docs/supabase/inspect/db-total-table-sizes.md

db-total-table-sizes

This command displays the total size of each table in the database. It is the sum of the values that pg_table_size() and pg_indexes_size() gives for each table. System tables inside pg_catalog and information_schema are not included.

                NAME               │    SIZE
───────────────────────────────────┼─────────────
  job_run_details                  │ 395 MB
  slack_msgs                       │ 648 kB
  emails                           │ 640 kB