pad serialized data with 0s

Author: LeMikaelF

libsql-sqlite3/src/vectorfloat8.c

@@ -83,6 +83,8 @@ void vectorF8SerializeToBlob(
   assert( nBlobSize >= vectorDataSize(pVector->type, pVector->dims) );
 
   memcpy(pBlob, pVector->data, pVector->dims);
+  // pad the blob with 0's, up to the size of the data region defined in `vectorDataSize`
+  memset(pBlob + pVector->dims, 0, ALIGN(pVector->dims, sizeof(float)) - pVector->dims);
 
   vectorF8GetParameters(pVector->data, pVector->dims, &alpha, &shift);
   vectorF8SetParameters(pBlob, pVector->dims, alpha, shift);