Explore: Run query on splitOpen action (#26161)

public/app/features/explore/ExploreToolbar.tsx

@@ -91,7 +91,7 @@ type Props = StateProps & DispatchProps & OwnProps;
 
 export class UnConnectedExploreToolbar extends PureComponent<Props> {
   onChangeDatasource = async (option: { value: any }) => {
-    this.props.changeDatasource(this.props.exploreId, option.value);
+    this.props.changeDatasource(this.props.exploreId, option.value, { importQueries: true });
   };
 
   onClearAll = () => {

public/app/features/explore/RichHistory/RichHistoryCard.tsx

@@ -163,7 +163,7 @@ export function RichHistoryCard(props: Props) {
   const onRunQuery = async () => {
     const queriesToRun = query.queries;
     if (query.datasourceName !== datasourceInstance?.name) {
-      await changeDatasource(exploreId, query.datasourceName);
+      await changeDatasource(exploreId, query.datasourceName, { importQueries: true });
       setQueries(exploreId, queriesToRun);
     } else {
       setQueries(exploreId, queriesToRun);

public/app/features/explore/state/actions.ts

@@ -122,7 +122,11 @@ export function addQueryRow(exploreId: ExploreId, index: number): ThunkResult<vo
 /**
  * Loads a new datasource identified by the given name.
  */
-export function changeDatasource(exploreId: ExploreId, datasourceName: string): ThunkResult<void> {
+export function changeDatasource(
+  exploreId: ExploreId,
+  datasourceName: string,
+  options?: { importQueries: boolean }
+): ThunkResult<void> {
   return async (dispatch, getState) => {
     let newDataSourceInstance: DataSourceApi;
 
@@ -150,7 +154,9 @@ export function changeDatasource(exploreId: ExploreId, datasourceName: string):
       })
     );
 
+    if (options?.importQueries) {
       await dispatch(importQueries(exploreId, queries, currentDataSourceInstance, newDataSourceInstance));
+    }
 
     if (getState().explore[exploreId].isLive) {
       dispatch(changeRefreshInterval(exploreId, RefreshPicker.offOption.value));
@@ -268,7 +274,7 @@ export function loadExploreDatasourcesAndSetDatasource(
     const exploreDatasources = getExploreDatasources();
 
     if (exploreDatasources.length >= 1) {
-      await dispatch(changeDatasource(exploreId, datasourceName));
+      await dispatch(changeDatasource(exploreId, datasourceName, { importQueries: true }));
       dispatch(runQueries(exploreId));
     } else {
       dispatch(loadDatasourceMissingAction({ exploreId }));
@@ -729,6 +735,7 @@ export function splitOpen<T extends DataQuery = any>(options?: { datasourceUid:
       const dataSourceSettings = getDatasourceSrv().getDataSourceSettingsByUid(options.datasourceUid);
       await dispatch(changeDatasource(ExploreId.right, dataSourceSettings.name));
       await dispatch(setQueriesAction({ exploreId: ExploreId.right, queries }));
+      await dispatch(runQueries(ExploreId.right));
     } else {
       rightState.queries = leftState.queries.slice();
       rightState.urlState = urlState;