batch count

common/proto/search.proto

@@ -12,6 +12,8 @@ service Searcher {
   // Returns live authorized row data and one-based filtered navigation bounds.
   // A missing position returns NOT_FOUND. Search and row reads are not a snapshot.
   rpc GetFilteredRow(SearchRequest) returns (komp_ac.tables_data.GetTableDataResponse);
+  // Up to 64 independent counts. Results preserve request order; errors are per item.
+  rpc BatchCount(BatchCountRequest) returns (BatchCountResponse);
   rpc Count(SearchRequest) returns (SearchCountResponse);
 }
 
@@ -127,3 +129,18 @@ message SearchResponse {
   }
   repeated Hit hits = 1;
 }
+
+message BatchCountRequest {
+  repeated SearchRequest requests = 1;
+}
+
+message BatchCountResult {
+  oneof outcome {
+    uint64 count = 1;
+    string error = 2;
+  }
+}
+
+message BatchCountResponse {
+  repeated BatchCountResult results = 1;
+}