Github user ravipesala commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/1464#discussion_r148995479
--- Diff:
core/src/main/java/org/apache/carbondata/core/metadata/schema/table/DataMapSchema.java
---
@@ -41,6 +48,24 @@
*/
private Map<String, String> properties;
+ /**
+ * map of parent column name to set of child column column without
+ * aggregation function
+ */
+ private Map<String, Set<ColumnSchema>> parentToNonAggChildMapping;
+
+ /**
+ * map of parent column name to set of child columns column with
+ * aggregation function
+ */
+ private Map<String, Set<ColumnSchema>> parentToAggChildMapping;
+
+ /**
+ * map of parent column name to set of aggregation function applied in
+ * in parent column
+ */
+ private Map<String, Set<String>> parentColumnToAggregationsMapping;
+
public DataMapSchema(String className) {
--- End diff --
Create a factory and extend this datamap schema and implement as per the
class name. All aggdatamap related should go to AggregationDataMapSchema class.
DataMapSchema should be the generic class and it should only contains the
generic attributes.
---
