Fetching metrics/segments and their revisions in parallel

frontend/src/metabase/redux/metadata.js

@@ -346,8 +346,10 @@ export const fetchMetricTable = createThunkAction(FETCH_METRIC_TABLE, (metricId,
 const FETCH_METRIC_REVISIONS = "metabase/metadata/FETCH_METRIC_REVISIONS";
 export const fetchMetricRevisions = createThunkAction(FETCH_METRIC_REVISIONS, (metricId, reload = false) => {
     return async (dispatch, getState) => {
-        await dispatch(fetchRevisions('metric', metricId));
-        await dispatch(fetchMetrics());
+        await Promise.all([
+            dispatch(fetchRevisions('metric', metricId)),
+            dispatch(fetchMetrics())
+        ]);
         const metric = i.getIn(getState(), ['metadata', 'metrics', metricId]);
         const tableId = metric.table_id;
         await dispatch(fetchTableMetadata(tableId));
@@ -380,8 +382,10 @@ export const fetchSegmentTable = createThunkAction(FETCH_SEGMENT_TABLE, (segment
 const FETCH_SEGMENT_REVISIONS = "metabase/metadata/FETCH_SEGMENT_REVISIONS";
 export const fetchSegmentRevisions = createThunkAction(FETCH_SEGMENT_REVISIONS, (segmentId, reload = false) => {
     return async (dispatch, getState) => {
-        await dispatch(fetchRevisions('segment', segmentId));
-        await dispatch(fetchSegments());
+        await Promise.all([
+            dispatch(fetchRevisions('segment', segmentId)),
+            dispatch(fetchSegments())
+        ]);
         const segment = i.getIn(getState(), ['metadata', 'segments', segmentId]);
         const tableId = segment.table_id;
         await dispatch(fetchTableMetadata(tableId));