org.apache.beam.sdk.schemas.transforms.Group.byFieldIds(keyFieldsIds); org.apache.beam.sdk.schemas.transforms.Group.CombineFieldsByFields<Row> combined = null; for (FieldAggregation fieldAggregation : fieldAggregations) {
org.apache.beam.sdk.schemas.transforms.Group.byFieldIds(keyFieldsIds); org.apache.beam.sdk.schemas.transforms.Group.CombineFieldsByFields<Row> combined = null; for (FieldAggregation fieldAggregation : fieldAggregations) {