diff --git a/src/fastfield/mod.rs b/src/fastfield/mod.rs
index fd94f2404..f3984df6e 100644
--- a/src/fastfield/mod.rs
+++ b/src/fastfield/mod.rs
@@ -981,13 +981,13 @@ mod bench {
     use std::collections::HashMap;
     use std::path::Path;
 
+    use fastfield_codecs::Column;
     use test::{self, Bencher};
 
     use super::tests::{generate_permutation, FIELD, SCHEMA};
     use super::*;
     use crate::directory::{CompositeFile, Directory, RamDirectory, WritePtr};
     use crate::fastfield::tests::generate_permutation_gcd;
-    use crate::fastfield::FastFieldReader;
 
     #[bench]
     fn bench_intfastfield_linear_veclookup(b: &mut Bencher) {
@@ -1042,7 +1042,7 @@ mod bench {
                 let n = test::black_box(7000u32);
                 let mut a = 0u64;
                 for i in (0u32..n / 7).map(|val| val * 7) {
-                    a ^= fast_field_reader.get(i);
+                    a ^= fast_field_reader.get_val(i as u64);
                 }
                 a
             });
@@ -1074,8 +1074,8 @@ mod bench {
 
             b.iter(|| {
                 let mut a = 0u32;
-                for i in 0u32..permutation.len() as u32 {
-                    a = fast_field_reader.get(i) as u32;
+                for i in 0u64..permutation.len() as u64 {
+                    a = fast_field_reader.get_val(i) as u32;
                 }
                 a
             });
@@ -1108,7 +1108,7 @@ mod bench {
             b.iter(|| {
                 let mut a = 0u32;
                 for i in 0u32..permutation.len() as u32 {
-                    a = fast_field_reader.get(i) as u32;
+                    a = fast_field_reader.get_val(i as u64) as u32;
                 }
                 a
             });
diff --git a/src/indexer/merger_sorted_index_test.rs b/src/indexer/merger_sorted_index_test.rs
index a2805d5cc..8cc1c05d6 100644
--- a/src/indexer/merger_sorted_index_test.rs
+++ b/src/indexer/merger_sorted_index_test.rs
@@ -480,11 +480,11 @@ mod tests {
 #[cfg(all(test, feature = "unstable"))]
 mod bench_sorted_index_merge {
 
+    use fastfield_codecs::Column;
     use test::{self, Bencher};
 
     use crate::core::Index;
-    // use cratedoc_id, readerdoc_id_mappinglet vals = reader.fate::schema;
-    use crate::fastfield::{DynamicFastFieldReader, FastFieldReader};
+    use crate::fastfield::DynamicFastFieldReader;
     use crate::indexer::merger::IndexMerger;
     use crate::schema::{Cardinality, NumericOptions, Schema};
     use crate::{IndexSettings, IndexSortByField, IndexWriter, Order};
@@ -546,7 +546,7 @@ mod bench_sorted_index_merge {
             // add values in order of the new doc_ids
             let mut val = 0;
             for (doc_id, _reader, field_reader) in sorted_doc_ids {
-                val = field_reader.get(doc_id);
+                val = field_reader.get_val(doc_id as u64);
             }
 
             val