/api/v2 part 4 (#14706)

* expose the order of group by

* key renames in json wrapper v2

* added group by context and group by units

* added view_average_values

* fix for view_average_values when percentage is specified

* option group-by-labels is enabling the exposure of all the labels that are used for each of the final grouped dimensions

* when executing group by queries, allocate one dimension data at a time - not all of them

* respect hidden dimensions

* cancel running data query on socket error

* use poll to detect socket errors

* use POLLRDHUP to detect half closed connections

* make sure POLLRDHUP is available

* do not destroy aral-by-size arals

* completed documentation of /api/v2/data.

* moved min, max back to view; updated swagger yaml and json

* default format for /api/v2/data is json2

1 files changed, 7 insertions, 7 deletions

diff --git a/web/api/queries/stddev/stddev.c b/web/api/queries/stddev/stddev.c
index ca337f8d2d..90ce21b85a 100644
--- a/web/api/queries/stddev/stddev.c
+++ b/web/api/queries/stddev/stddev.c
@@ -15,23 +15,23 @@ struct grouping_stddev {
 };
 
 void grouping_create_stddev(RRDR *r, const char *options __maybe_unused) {
-    r->grouping.data = onewayalloc_callocz(r->internal.owa, 1, sizeof(struct grouping_stddev));
+    r->time_grouping.data = onewayalloc_callocz(r->internal.owa, 1, sizeof(struct grouping_stddev));
 }
 
 // resets when switches dimensions
 // so, clear everything to restart
 void grouping_reset_stddev(RRDR *r) {
-    struct grouping_stddev *g = (struct grouping_stddev *)r->grouping.data;
+    struct grouping_stddev *g = (struct grouping_stddev *)r->time_grouping.data;
     g->count = 0;
 }
 
 void grouping_free_stddev(RRDR *r) {
-    onewayalloc_freez(r->internal.owa, r->grouping.data);
-    r->grouping.data = NULL;
+    onewayalloc_freez(r->internal.owa, r->time_grouping.data);
+    r->time_grouping.data = NULL;
 }
 
 void grouping_add_stddev(RRDR *r, NETDATA_DOUBLE value) {
-    struct grouping_stddev *g = (struct grouping_stddev *)r->grouping.data;
+    struct grouping_stddev *g = (struct grouping_stddev *)r->time_grouping.data;
 
     g->count++;
 
@@ -62,7 +62,7 @@ static inline NETDATA_DOUBLE stddev(struct grouping_stddev *g) {
 }
 
 NETDATA_DOUBLE grouping_flush_stddev(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr) {
-    struct grouping_stddev *g = (struct grouping_stddev *)r->grouping.data;
+    struct grouping_stddev *g = (struct grouping_stddev *)r->time_grouping.data;
 
     NETDATA_DOUBLE value;
 
@@ -89,7 +89,7 @@ NETDATA_DOUBLE grouping_flush_stddev(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_optio
 
 // https://en.wikipedia.org/wiki/Coefficient_of_variation
 NETDATA_DOUBLE grouping_flush_coefficient_of_variation(RRDR *r, RRDR_VALUE_FLAGS *rrdr_value_options_ptr) {
-    struct grouping_stddev *g = (struct grouping_stddev *)r->grouping.data;
+    struct grouping_stddev *g = (struct grouping_stddev *)r->time_grouping.data;
 
     NETDATA_DOUBLE value;