filter list in perspective

packages/datalib/src/PerspectiveConfig.ts

@@ -17,8 +17,14 @@ export interface PerspectiveCustomJoinConfig {
     refColumnName: string;
   }[];
 }
+
+export interface PerspectiveFilterColumnInfo {
+  columnName: string;
+  filterType: string;
+}
 export interface PerspectiveConfig extends PerspectiveConfigColumns {
   filters: { [uniqueName: string]: string };
+  filterInfos: { [uniqueName: string]: PerspectiveFilterColumnInfo };
   sort: {
     [parentUniqueName: string]: {
       uniqueName: string;
@@ -35,6 +41,7 @@ export function createPerspectiveConfig(): PerspectiveConfig {
     uncheckedColumns: [],
     customJoins: [],
     filters: {},
+    filterInfos: {},
     sort: {},
   };
 }

packages/datalib/src/PerspectiveTreeNode.ts

@@ -160,6 +160,13 @@ export abstract class PerspectiveTreeNode {
           ...cfg.filters,
           [this.uniqueName]: value,
         },
+        filterInfos: {
+          ...cfg.filterInfos,
+          [this.uniqueName]: {
+            columnName: this.columnName,
+            filterType: this.filterType,
+          },
+        },
       }),
       true
     );