1 files changed, 3 insertions, 4 deletions

diff --git a/sql/sql_digest.h b/sql/sql_digest.h
index ce159283d4d..eaf74b9542e 100644
--- a/sql/sql_digest.h
+++ b/sql/sql_digest.h
@@ -41,6 +41,9 @@ struct sql_digest_storage
     For Example:
     SELECT * FROM T1;
     <SELECT_TOKEN> <*> <FROM_TOKEN> <ID_TOKEN> <2> <T1>
+
+    @note Only the first @c m_byte_count bytes are initialized,
+      out of @c m_token_array_length.
   */
   unsigned char *m_token_array;
   /* Length of the token array to be considered for DIGEST_TEXT calculation. */
@@ -63,10 +66,6 @@ struct sql_digest_storage
     m_full= false;
     m_byte_count= 0;
     m_charset_number= 0;
-    if (m_token_array_length > 0)
-    {
-      memset(m_token_array, 0, m_token_array_length);
-    }
     memset(m_md5, 0, MD5_HASH_SIZE);
   }