where_terms_loop
cython: where_terms_loop
cython: cpdef
cython: carray type info
carray_is_in
fix
clean up
groupby
ctable groupby
groupby in disk
calculated_fields
_groupby_sum
_groupby_sum
aggs
# todo: adapt for hash_dict
group_hash_id
_calc_aggs
_calc_aggs
raise ValueError
groupby Carst