fixing bad comparator

src/definition.rs

@@ -546,7 +546,7 @@ mod tests {
         let mut eval = Evaluator::new("_path_for_rocksdb_storagex".to_string()).unwrap();
         eval.build_table(parsed).unwrap();
         eval.restore_metadata().unwrap();
-        eval.storage.delete().unwrap();
+        // eval.storage.delete().unwrap();
         println!("{:#?}", eval.s_envs.resolve("Person"));
         println!("{:#?}", eval.s_envs.resolve("Friend"));
     }

src/storage.rs

@@ -18,8 +18,8 @@ impl Storage {
         options.create_if_missing(true);
         options.set_comparator("cozo_comparator_v1", cozo_comparator_v1);
 
-        let temp_cf = ColumnFamilyDescriptor::new("temp", options.clone());
+        // let temp_cf = ColumnFamilyDescriptor::new("temp", options.clone());
-        let db = DB::open_cf_descriptors(&options, &path, vec![temp_cf])?;
+        let db = DB::open(&options, &path)?;
 
         Ok(Storage { db: Some(db), options, path })
     }

src/value.rs

@@ -250,7 +250,7 @@ impl<'a> ByteArrayParser<'a> {
     #[inline]
     pub fn compare_string(&mut self, other: &mut Self) -> Ordering {
         let len_a = self.parse_varint().expect("Failed to get String length when comparing");
-        let len_b = self.parse_varint().expect("Failed to get String length when comparing");
+        let len_b = other.parse_varint().expect("Failed to get String length when comparing");
         for _ in 0..min(len_a, len_b) {
             let byte_a = self.advance(1).expect("Unexpected end of String when comparing")[0];
             let byte_b = other.advance(1).expect("Unexpected end of String when comparing")[0];
@@ -472,6 +472,7 @@ impl<T: Write> ByteArrayBuilder<T> {
 pub fn cozo_comparator_v1(a: &[u8], b: &[u8]) -> Ordering {
     cmp_data(&mut ByteArrayParser { bytes: a, current: 0 },
                        &mut ByteArrayParser { bytes: b, current: 0 })
+
 }
 
 pub fn cmp_data<'a>(pa: &mut ByteArrayParser<'a>, pb: &mut ByteArrayParser<'a>) -> Ordering {