diff --git a/Cargo.toml b/Cargo.toml
index 80bc03270..6966d7e6f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -59,6 +59,7 @@ sstable = { version="0.1", path="./sstable", package ="tantivy-sstable", optiona
 stacker = { version="0.1", path="./stacker", package ="tantivy-stacker" }
 tantivy-query-grammar = { version= "0.19.0", path="./query-grammar" }
 tantivy-bitpacker = 		{ version= "0.3", path="./bitpacker" }
+columnar = 		{ version= "0.1", path="./columnar", package="tantivy-columnar" }
 common = 								{ version= "0.5", path = "./common/", package = "tantivy-common" }
 fastfield_codecs = 			{ version= "0.3", path="./fastfield_codecs", default-features = false }
 tokenizer-api = { version="0.1", path="./tokenizer-api", package="tantivy-tokenizer-api" }
diff --git a/src/fastfield/writer.rs b/src/fastfield/writer.rs
index 1dbfed643..6b8f7a8c4 100644
--- a/src/fastfield/writer.rs
+++ b/src/fastfield/writer.rs
@@ -58,21 +58,21 @@ impl FastFieldsWriter {
                 | FieldType::Bool(ref int_options) => {
                     todo!();
                     // match int_options.get_fastfield_cardinality() {
-                        // Some(Cardinality::SingleValue) => {
-                        //     let mut fast_field_writer = IntFastFieldWriter::new(field, None);
-                        //     let default_value = fast_field_default_value(field_entry);
-                        //     fast_field_writer.set_val_if_missing(default_value);
-                        //     single_value_writers.push(fast_field_writer);
-                        // }
-                        // Some(Cardinality::MultiValues) => {
-                        //     let fast_field_writer = MultiValuedFastFieldWriter::new(
-                        //         field,
-                        //         FastFieldType::Numeric,
-                        //         None,
-                        //     );
-                        //     multi_values_writers.push(fast_field_writer);
-                        // }
-                        // None => {}
+                    // Some(Cardinality::SingleValue) => {
+                    //     let mut fast_field_writer = IntFastFieldWriter::new(field, None);
+                    //     let default_value = fast_field_default_value(field_entry);
+                    //     fast_field_writer.set_val_if_missing(default_value);
+                    //     single_value_writers.push(fast_field_writer);
+                    // }
+                    // Some(Cardinality::MultiValues) => {
+                    //     let fast_field_writer = MultiValuedFastFieldWriter::new(
+                    //         field,
+                    //         FastFieldType::Numeric,
+                    //         None,
+                    //     );
+                    //     multi_values_writers.push(fast_field_writer);
+                    // }
+                    // None => {}
                     // }
                 }
                 FieldType::Date(ref options) => match options.get_fastfield_cardinality() {
diff --git a/src/indexer/merger.rs b/src/indexer/merger.rs
index b52293b6b..3ce2eb2a8 100644
--- a/src/indexer/merger.rs
+++ b/src/indexer/merger.rs
@@ -273,9 +273,9 @@ impl IndexMerger {
                 FieldType::U64(ref options)
                 | FieldType::I64(ref options)
                 | FieldType::F64(ref options)
-                | FieldType::Bool(ref options) =>  {
+                | FieldType::Bool(ref options) => {
                     todo!()
-                },
+                }
                 FieldType::Date(ref options) => match options.get_fastfield_cardinality() {
                     Some(Cardinality::SingleValue) => {
                         self.write_single_fast_field(field, fast_field_serializer, doc_id_mapping)?;
diff --git a/src/schema/field_type.rs b/src/schema/field_type.rs
index 353c72833..fb7ae9a5a 100644
--- a/src/schema/field_type.rs
+++ b/src/schema/field_type.rs
@@ -258,8 +258,8 @@ impl FieldType {
         //     FieldType::Date(ref date_options) => date_options.get_fastfield_cardinality(),
         //     FieldType::Facet(_) => Some(Cardinality::MultiValues),
         //     FieldType::JsonObject(_) => None,
-        //     FieldType::IpAddr(ref ip_addr_options) => ip_addr_options.get_fastfield_cardinality(),
-        // }
+        //     FieldType::IpAddr(ref ip_addr_options) =>
+        // ip_addr_options.get_fastfield_cardinality(), }
     }
 
     /// returns true if the field is normed (see [fieldnorms](crate::fieldnorm)).