fn relation_desc_from_output(
columns: &[ColumnSchema],
lineage: &[Option<usize>],
source_primary_key_indices: &[usize],
plan: &LogicalPlan,
) -> RelationDescfn relation_desc_from_output(
columns: &[ColumnSchema],
lineage: &[Option<usize>],
source_primary_key_indices: &[usize],
plan: &LogicalPlan,
) -> RelationDesc