[TSVB] Add support for Math Aggregation to tables (#14553)

* Add support for Math Aggregation to tables

* Removing the range reduction for dropping the last bucket

src/core_plugins/metrics/server/lib/vis_data/request_processors/table/date_histogram.js

@@ -7,7 +7,7 @@ import { calculateAggRoot } from './calculate_agg_root';
 export default function dateHistogram(req, panel) {
   return next => doc => {
     const { timeField, interval } = getIntervalAndTimefield(panel);
-    const { bucketSize, intervalString } = getBucketSize(req, interval);
+    const { intervalString } = getBucketSize(req, interval);
     const { from, to }  = getTimerange(req);
     panel.series.forEach(column => {
       const aggRoot = calculateAggRoot(doc, column);
@@ -17,7 +17,7 @@ export default function dateHistogram(req, panel) {
         min_doc_count: 0,
         extended_bounds: {
           min: from.valueOf(),
-          max: to.valueOf() - (bucketSize * 1000)
+          max: to.valueOf()
         }
       });
     });

src/core_plugins/metrics/server/lib/vis_data/request_processors/table/query.js

@@ -1,10 +1,8 @@
-import getBucketSize from '../../helpers/get_bucket_size';
 import getTimerange from '../../helpers/get_timerange';
 import getIntervalAndTimefield from '../../get_interval_and_timefield';
 export default function query(req, panel) {
   return next => doc => {
-    const { timeField, interval } = getIntervalAndTimefield(panel);
-    const { bucketSize } = getBucketSize(req, interval);
+    const { timeField } = getIntervalAndTimefield(panel);
     const { from, to } = getTimerange(req);
 
     doc.size = 0;
@@ -18,7 +16,7 @@ export default function query(req, panel) {
       range: {
         [timeField]: {
           gte: from.valueOf(),
-          lte: to.valueOf() - (bucketSize * 1000),
+          lte: to.valueOf(),
           format: 'epoch_millis',
         }
       }

src/core_plugins/metrics/server/lib/vis_data/response_processors/table/drop_last_bucket.js

@@ -0,0 +1,8 @@
+import { dropLastBucket } from '../series/drop_last_bucket';
+
+export function dropLastBucketFn(bucket, panel, series) {
+  return next => results => {
+    const fn = dropLastBucket({ aggregations: bucket }, panel, series);
+    return fn(next)(results);
+  };
+}

src/core_plugins/metrics/server/lib/vis_data/response_processors/table/index.js

@@ -2,11 +2,15 @@
 import stdMetric from './std_metric';
 import stdSibling from './std_sibling';
 import seriesAgg from './series_agg';
+import { math } from './math';
+import { dropLastBucketFn } from './drop_last_bucket';
 
 export default [
   // percentile,
   stdMetric,
   stdSibling,
-  seriesAgg
+  math,
+  seriesAgg,
+  dropLastBucketFn
 ];
 

src/core_plugins/metrics/server/lib/vis_data/response_processors/table/math.js

@@ -0,0 +1,8 @@
+import { mathAgg } from '../series/math';
+
+export function math(bucket, panel, series) {
+  return next => results => {
+    const mathFn = mathAgg({ aggregations: bucket }, panel, series);
+    return mathFn(next)(results);
+  };
+}