Reads the current partitioning keys from the DuckLake metadata catalog.
Value
A data frame with one row per partition key: table_name,
partition_key_index, column_name, and transform (e.g.
"identity" or "year"). Zero rows when nothing is partitioned.
See also
set_table_partitioning(), get_metadata_table()
Other partitioning:
reset_table_partitioning(),
set_table_partitioning()
