diff --git a/src/database/index.rs b/src/database/index.rs
index 42695a8..3202821 100644
--- a/src/database/index.rs
+++ b/src/database/index.rs
@@ -42,11 +42,11 @@ impl Index {
         if index_row.is_none() {
             // Insert the new row into the index
             self.index_rows.insert(key, vec![pk_value]);
-            return Result::Ok(());
+            return Ok(());
         }
 
         if self.unique {
-            return Result::Err("Index is unique!");
+            return Err("Index is unique!");
         }
 
         let mut vector = index_row.unwrap().clone();
@@ -61,7 +61,7 @@ impl Index {
 
         self.index_rows.insert(key, vector);
 
-        return Result::Ok(());
+        return Ok(());
     }
 
     pub fn get_pks_by_value(&self, value: Value) -> Option<&Vec<u64>> {
diff --git a/src/main.rs b/src/main.rs
index db5162f..23d0119 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,11 +1,3 @@
-macro_rules! hashmapJson {
-    ($( $key: expr => $val: expr ),*) => {{
-         let mut map: ::std::collections::HashMap<String, ::serde_json::Value> = ::std::collections::HashMap::new();
-         $( map.insert($key.to_string(), serde_json::to_value($val).unwrap()); )*
-         map
-    }}
-}
-
 macro_rules! row {
     ($( $key: expr => $val: expr ),*) => {{
          let mut map: crate::database::row::Row = ::std::collections::HashMap::new();
@@ -16,8 +8,9 @@ macro_rules! row {
 
 macro_rules! hashmap {
     ($( $key: expr => $val: expr ),*) => {{
+        #[allow(unused_mut)]
          let mut map = ::std::collections::HashMap::new();
-         $( map.insert($key.to_string(), $val );)*
+         $( map.insert($key.to_string(), $val ); )*
          map
     }}
 }