{ "schema" = <"strict" = %true; "unique_keys" = %false> [ { "type" = "int64"; "required" = %true; "name" = "row" }; { "type" = "int64"; "required" = %true; "name" = "i" }; ]; "_yql_row_spec" = { "TypePatch" = ["StructType";[ ["i"; ["DataType"; "Interval"]]; ]]; }; }