Issue with ordering

[steveoni]

While trying to use /aggregate and /facts this specific line for ordering

babbage/babbage/cube.py

Line 102 in 9416105

ordering, q, bindings = Ordering(self).apply(q, bindings, order)

is generating variables not in any of the tables

sqlalchemy.exc.ProgrammingError: (psycopg2.errors.UndefinedTable) missing FROM-clause entry for table "anon_2"
LINE 2: FROM "R_kgDOGLhFbw4edfc924721abb77" ORDER BY anon_2.anon_1 A...

and here is the generated sql query

[SQL: SELECT NULL AS anon_1, count("R_kgDOGLhFbw4edfc924721abb77".activity_id) AS _count, sum("R_kgDOGLhFbw4edfc924721abb77"."MONTO_ADEFAS") AS "MONTO_ADEFAS.sum", sum("R_kgDOGLhFbw4edfc924721abb77"."MONTO_APROBADO") AS "MONTO_APROBADO.sum", sum("R_kgDOGLhFbw4edfc924721abb77"."MONTO_DEVENGADO") AS "MONTO_DEVENGADO.sum", sum("R_kgDOGLhFbw4edfc924721abb77"."MONTO_EJERCICIO") AS "MONTO_EJERCICIO.sum", sum("R_kgDOGLhFbw4edfc924721abb77"."MONTO_EJERCIDO") AS "MONTO_EJERCIDO.sum", sum("R_kgDOGLhFbw4edfc924721abb77"."MONTO_MODIFICADO") AS "MONTO_MODIFICADO.sum", sum("R_kgDOGLhFbw4edfc924721abb77"."MONTO_PAGADO") AS "MONTO_PAGADO.sum" 
FROM "R_kgDOGLhFbw4edfc924721abb77" ORDER BY anon_2.anon_1 ASC NULLS LAST, anon_2._count ASC NULLS LAST, anon_2."MONTO_ADEFAS.sum" ASC NULLS LAST, anon_2."MONTO_APROBADO.sum" ASC NULLS LAST, anon_2."MONTO_DEVENGADO.sum" ASC NULLS LAST, anon_2."MONTO_EJERCICIO.sum" ASC NULLS LAST, anon_2."MONTO_EJERCIDO.sum" ASC NULLS LAST, anon_2."MONTO_MODIFICADO.sum" ASC NULLS LAST, anon_2."MONTO_PAGADO.sum" ASC NULLS LAST 
 LIMIT %(param_1)s]
[parameters: {'param_1': 100}]

but commenting out the ordering line, the api works fine. is there something i'm doing wrong