Fix ubsan issue on memory alignment

Altinity · Jan 21, 2025 · 3225fe4 · 3225fe4
1 parent 39d79f7
commit 3225fe4
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/src/Processors/Formats/Impl/Parquet/ParquetDataBuffer.h b/src/Processors/Formats/Impl/Parquet/ParquetDataBuffer.h
@@ -54,11 +54,10 @@ class ParquetDataBuffer
         auto necessary_bytes = count * sizeof(ParquetType);
         checkAvaible(necessary_bytes);
 
-        const ParquetType* src = reinterpret_cast<const ParquetType*>(data);
-
         for (std::size_t i = 0; i < count; i++)
         {
-            dst[i] = static_cast<TValue>(src[i]);
+            auto offset = i * sizeof(ParquetType);
+            dst[i] = unalignedLoad<TValue>(data + offset);
         }
 
         consume(necessary_bytes);