diff --git a/frontend/rust-lib/flowy-database2/src/services/calculations/service.rs b/frontend/rust-lib/flowy-database2/src/services/calculations/service.rs
index 3a0c40e5883d..76abb05f926c 100644
--- a/frontend/rust-lib/flowy-database2/src/services/calculations/service.rs
+++ b/frontend/rust-lib/flowy-database2/src/services/calculations/service.rs
@@ -1,5 +1,5 @@
 use crate::entities::{CalculationType, FieldType};
-use crate::services::cell::CellDataDecoder;
+
 use crate::services::field::TypeOptionCellExt;
 use collab_database::fields::Field;
 use collab_database::rows::RowCell;
diff --git a/frontend/rust-lib/flowy-database2/src/services/cell/cell_operation.rs b/frontend/rust-lib/flowy-database2/src/services/cell/cell_operation.rs
index 07682f2e009d..1d4d9c051248 100644
--- a/frontend/rust-lib/flowy-database2/src/services/cell/cell_operation.rs
+++ b/frontend/rust-lib/flowy-database2/src/services/cell/cell_operation.rs
@@ -40,6 +40,8 @@ pub trait CellDataDecoder: TypeOption {
   /// Same as [CellDataDecoder::stringify_cell_data] but the input parameter is the [Cell]
   fn stringify_cell(&self, cell: &Cell) -> String;
 
+  // Decode the cell into f64
+  // Different field type has different way to decode the cell data into f64
   fn numeric_cell(&self, cell: &Cell) -> Option<f64>;
 }
 
diff --git a/frontend/rust-lib/flowy-database2/src/services/field/type_options/selection_type_option/select_type_option.rs b/frontend/rust-lib/flowy-database2/src/services/field/type_options/selection_type_option/select_type_option.rs
index f46b764683cf..6f78c808e567 100644
--- a/frontend/rust-lib/flowy-database2/src/services/field/type_options/selection_type_option/select_type_option.rs
+++ b/frontend/rust-lib/flowy-database2/src/services/field/type_options/selection_type_option/select_type_option.rs
@@ -7,14 +7,13 @@ use flowy_error::{internal_error, ErrorCode, FlowyResult};
 
 use crate::entities::{FieldType, SelectOptionCellDataPB};
 use crate::services::cell::{
-  CellDataChangeset, CellDataDecoder, CellProtobufBlobParser, DecodedCellData, FromCellChangeset,
+  CellDataDecoder, CellProtobufBlobParser, DecodedCellData, FromCellChangeset,
   ToCellChangeset,
 };
 use crate::services::field::selection_type_option::type_option_transform::SelectOptionTypeOptionTransformHelper;
 use crate::services::field::{
   make_selected_options, CheckboxCellData, MultiSelectTypeOption, SelectOption,
-  SelectOptionCellData, SelectOptionColor, SelectOptionIds, SingleSelectTypeOption, TypeOption,
-  TypeOptionCellDataCompare, TypeOptionCellDataFilter, TypeOptionCellDataSerde,
+  SelectOptionCellData, SelectOptionColor, SelectOptionIds, SingleSelectTypeOption, TypeOption, TypeOptionCellDataSerde,
   TypeOptionTransform, SELECTION_IDS_SEPARATOR,
 };