metrics have been added

1 files changed, 64 insertions, 0 deletions

diff --git a/library/go/yandex/unistat/aggr/aggr.go b/library/go/yandex/unistat/aggr/aggr.go
new file mode 100644
index 0000000000..515c5c0335
--- /dev/null
+++ b/library/go/yandex/unistat/aggr/aggr.go
@@ -0,0 +1,64 @@
+package aggr
+
+import "github.com/ydb-platform/ydb/library/go/yandex/unistat"
+
+// Histogram returns delta histogram aggregation (dhhh).
+func Histogram() unistat.Aggregation {
+	return unistat.StructuredAggregation{
+		AggregationType: unistat.Delta,
+		Group:           unistat.Hgram,
+		MetaGroup:       unistat.Hgram,
+		Rollup:          unistat.Hgram,
+	}
+}
+
+// AbsoluteHistogram returns absolute histogram aggregation (ahhh).
+func AbsoluteHistogram() unistat.Aggregation {
+	return unistat.StructuredAggregation{
+		AggregationType: unistat.Absolute,
+		Group:           unistat.Hgram,
+		MetaGroup:       unistat.Hgram,
+		Rollup:          unistat.Hgram,
+	}
+}
+
+// Counter returns counter aggregation (dmmm)
+func Counter() unistat.Aggregation {
+	return unistat.StructuredAggregation{
+		AggregationType: unistat.Delta,
+		Group:           unistat.Sum,
+		MetaGroup:       unistat.Sum,
+		Rollup:          unistat.Sum,
+	}
+}
+
+// Absolute returns value aggregation (ammm)
+func Absolute() unistat.Aggregation {
+	return unistat.StructuredAggregation{
+		AggregationType: unistat.Absolute,
+		Group:           unistat.Sum,
+		MetaGroup:       unistat.Sum,
+		Rollup:          unistat.Sum,
+	}
+}
+
+// SummAlias corresponds to _summ suffix
+type SummAlias struct{}
+
+func (s SummAlias) Suffix() string {
+	return "summ"
+}
+
+// SummAlias corresponds to _hgram suffix
+type HgramAlias struct{}
+
+func (s HgramAlias) Suffix() string {
+	return "hgram"
+}
+
+// SummAlias corresponds to _max suffix
+type MaxAlias struct{}
+
+func (s MaxAlias) Suffix() string {
+	return "max"
+}