Fixed edge case of a small bitpacked.

src/encoding/hybrid_rle/decoder.rs

@@ -31,6 +31,7 @@ impl<'a> Iterator for Decoder<'a> {
         if indicator & 1 == 1 {
             // is bitpacking
             let bytes = (indicator as usize >> 1) * self.num_bits as usize;
+            let bytes = std::cmp::min(bytes, self.values.len());
             let result = Some(HybridEncoded::Bitpacked(&self.values[..bytes]));
             self.values = &self.values[bytes..];
             result

src/encoding/hybrid_rle/mod.rs

@@ -190,4 +190,17 @@ mod tests {
 
         assert_eq!(result, (0..1000).collect::<Vec<_>>());
     }
+
+    #[test]
+    fn small() {
+        let data = vec![3, 2];
+
+        let num_bits = 3;
+
+        let decoder = HybridRleDecoder::new(&data, num_bits as u32, 1);
+
+        let result = decoder.collect::<Vec<_>>();
+
+        assert_eq!(result, &[2]);
+    }
 }