output_id, output
Central: central_id, output_id, central_data
Central_2_A: central_id, property_A_id
Property_A: property_A_id, property_A
Central_2_B: central_id, property_B_id
Property_B: property_B_id, property_B
Central_2_C: central_id, property_C_id
Property_C: property_C_id, property_C

knex('Central').select(
Central.central_id
Central.output_id
Central.central_data
Property_A.property_A_id
Property_A.property_A
Property_B.property_B_id
Property_B.property_B
Property_C.property_C_id
Property_C.property_C
)
.leftJoin('Central_2_A','Central_2_A.central_id','Central.central_id')
.leftJoin('Property_A','Property_A.property_A_id','Central_2_A.property_A_id')
.leftJoin('Central_2_B','Central_2_B.central_id','Central.central_id')
.leftJoin('Property_B','Property_B.property_B_id','Central_2_B.property_B_id')
.leftJoin('Central_2_C','Central_2_C.central_id','Central.central_id')
.leftJoin('Property_C','Property_C.property_C_id','Central_2_A.property_C_id')