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+// Copyright 2019 Google LLC.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+syntax = "proto3";
+
+package google.cloud.talent.v4beta1;
+
+import "google/api/annotations.proto";
+import "google/protobuf/wrappers.proto";
+
+option go_package = "google.golang.org/genproto/googleapis/cloud/talent/v4beta1;talent";
+option java_multiple_files = true;
+option java_outer_classname = "HistogramProto";
+option java_package = "com.google.cloud.talent.v4beta1";
+option objc_class_prefix = "CTS";
+
+// Input Only.
+//
+// The histogram request.
+message HistogramQuery {
+ // An expression specifies a histogram request against matching resources
+ // (for example, jobs, profiles) for searches.
+ //
+ // See
+ // [SearchJobsRequest.histogram_queries][google.cloud.talent.v4beta1.SearchJobsRequest.histogram_queries]
+ // and
+ // [SearchProfilesRequest.histogram_queries][google.cloud.talent.v4beta1.SearchProfilesRequest.histogram_queries]
+ // for details about syntax.
+ string histogram_query = 1;
+}
+
+// Output only.
+//
+// Histogram result that matches [HistogramSpec][] specified in searches.
+message HistogramQueryResult {
+ // Requested histogram expression.
+ string histogram_query = 1;
+
+ // A map from the values of the facet associated with distinct values to the
+ // number of matching entries with corresponding value.
+ //
+ // The key format is:
+ // * (for string histogram) string values stored in the field.
+ // * (for named numeric bucket) name specified in `bucket()` function, like
+ // for `bucket(0, MAX, "non-negative")`, the key will be `non-negative`.
+ // * (for anonymous numeric bucket) range formatted as `<low>-<high>`, for
+ // example, `0-1000`, `MIN-0`, and `0-MAX`.
+ map<string, int64> histogram = 2;
+}