def merge_child_table(self, table):
    self.add_child_descriptor_list(table.name)
    for descriptor in table.descriptors:
        parent_id = descriptor[PARENT_COLUMN_NAME]
        parent_idx = self.id_index_map[parent_id]
        parent_descriptor = self.descriptors[parent_idx]
        parent_descriptor[table.name].append(descriptor)
def merge_child_table(self, table):
    self.add_child_descriptor_list(table.name)
    for descriptor in table.descriptors:
        parent_id = descriptor[PARENT_COLUMN_NAME]
        parent_idx = self.id_index_map[parent_id]
        parent_descriptor = self.descriptors[parent_idx]
        parent_descriptor[table.name].append(descriptor)