dft uses a configured database path to load tables into the DataFusion SessionContext for querying.
[db]
path = /path/to/db
Within this path it will look for a tables directory and then the expected path structure is {catalog_name}/{schema_name}/{table_name} where table name must be a directory where the tables data files are stored.
For example, after generating TPC-H data into the dft catalog and tpch schema the following paths are in the database path:
/path/to/db/tables/dft/tpch/customers/
/path/to/db/tables/dft/tpch/line_items/
/path/to/db/tables/dft/tpch/nations/
/path/to/db/tables/dft/tpch/orders/
/path/to/db/tables/dft/tpch/part_supps/
/path/to/db/tables/dft/tpch/parts/
/path/to/db/tables/dft/tpch/regions/
/path/to/db/tables/dft/tpch/suppliers/