chore: rename drop missing columns to show empty columns (#20602)

superset-frontend/packages/superset-ui-chart-controls/src/operators/pivotOperator.ts

@@ -44,7 +44,7 @@ export const pivotOperator: PostProcessingFactory<PostProcessingPivot> = (
         aggregates: Object.fromEntries(
           metricLabels.map(metric => [metric, { operator: 'mean' }]),
         ),
-        drop_missing_columns: !!formData?.drop_missing_columns,
+        drop_missing_columns: !formData?.show_empty_columns,
       },
     };
   }

superset-frontend/packages/superset-ui-chart-controls/src/operators/timeComparePivotOperator.ts

@@ -46,7 +46,7 @@ export const timeComparePivotOperator: PostProcessingFactory<PostProcessingPivot
         options: {
           index,
           columns: ensureIsArray(queryObject.columns).map(getColumnLabel),
-          drop_missing_columns: !!formData?.drop_missing_columns,
+          drop_missing_columns: !formData?.show_empty_columns,
           aggregates,
         },
       };

superset-frontend/packages/superset-ui-chart-controls/src/sections/echartsTimeSeriesQuery.tsx

@@ -55,6 +55,6 @@ export const echartsTimeSeriesQuery: ControlPanelSectionConfig = {
     ['order_desc'],
     ['row_limit'],
     ['truncate_metric'],
-    ['drop_missing_columns'],
+    ['show_empty_columns'],
   ],
 };

superset-frontend/packages/superset-ui-chart-controls/src/shared-controls/index.tsx

@@ -542,11 +542,11 @@ const truncate_metric: SharedControlConfig<'CheckboxControl'> = {
   description: t('Whether to truncate metrics'),
 };
 
-const drop_missing_columns: SharedControlConfig<'CheckboxControl'> = {
+const show_empty_columns: SharedControlConfig<'CheckboxControl'> = {
   type: 'CheckboxControl',
-  label: t('Drop Missing Columns'),
+  label: t('Show empty columns'),
-  default: false,
+  default: true,
-  description: t('Drop a column if all values are null'),
+  description: t('Show empty columns'),
 };
 
 const x_axis: SharedControlConfig<'SelectControl', ColumnMeta> = {
@@ -594,7 +594,7 @@ const sharedControls = {
   legacy_order_by: enableExploreDnd ? dnd_sort_by : sort_by,
   truncate_metric,
   x_axis: enableExploreDnd ? dnd_x_axis : x_axis,
-  drop_missing_columns,
+  show_empty_columns,
 };
 
 export { sharedControls, dndEntity, dndColumnsControl };

superset-frontend/packages/superset-ui-chart-controls/test/operators/pivotOperator.test.ts

@@ -28,6 +28,7 @@ const formData: SqlaFormData = {
   granularity: 'month',
   datasource: 'foo',
   viz_type: 'table',
+  show_empty_columns: true,
 };
 const queryObject: QueryObject = {
   metrics: [

superset-frontend/packages/superset-ui-chart-controls/test/operators/timeComparePivotOperator.test.ts

@@ -31,6 +31,7 @@ const formData: SqlaFormData = {
   granularity: 'month',
   datasource: 'foo',
   viz_type: 'table',
+  show_empty_columns: true,
 };
 const queryObject: QueryObject = {
   metrics: [

superset-frontend/plugins/plugin-chart-echarts/test/MixedTimeseries/buildQuery.test.ts

@@ -48,6 +48,7 @@ const formDataMixedChart = {
   order_desc: true,
   emit_filter: true,
   truncate_metric: true,
+  show_empty_columns: true,
   //   -- query b
   groupby_b: [],
   metrics_b: ['count'],
@@ -64,6 +65,7 @@ const formDataMixedChart = {
   order_desc_b: false,
   emit_filter_b: undefined,
   truncate_metric_b: true,
+  show_empty_columns_b: true,
   // chart configs
   show_value: false,
   show_valueB: undefined,