refactor: fixing interval specification

Author: anandtiwary

projects/observability/src/shared/dashboard/data/graphql/table/explore/explore-table-data-source.model.ts

@@ -80,6 +80,7 @@ export class ExploreTableDataSourceModel extends TableDataSourceModel {
       interval: this.interval?.getDuration(),
       limit: request.position.limit * 2, // Prefetch 2 pages
       offset: request.position.startIndex,
+      includeTotal: true,
       orderBy: request.sort && [
         {
           direction: request.sort.direction,

projects/observability/src/shared/graphql/request/builders/specification/explore/explore-specification-builder.ts

@@ -24,7 +24,7 @@ export class ExploreSpecificationBuilder {
         type: AttributeMetadataType.Timestamp
       }),
       asGraphQlOrderByFragment: () => ({
-        key: INTERVAL_START_QUERY_KEY
+        key: 'intervalStart'
       })
     };
   }