Bug#12856915 VALGRIND FAILURE IN FILESORT/CREATE_SORT_INDEX

Suppress the known warnings generated by filesort().

The real fix belongs to worklog 1509:
Pack values of non-sorted fields in the sort buffer
(which is basically the same issue, but in an optimization context:
 We are writing the entire sort buffer to disk, 
 including un-used space for varchar columns.)

1 files changed, 0 insertions, 11 deletions

diff --git a/sql/filesort.cc b/sql/filesort.cc
index 99e5156427a..0ff354b334c 100644
--- a/sql/filesort.cc
+++ b/sql/filesort.cc
@@ -959,21 +959,10 @@ static void make_sortkey(register SORTPARAM *param,
       if (addonf->null_bit && field->is_null())
       {
         nulls[addonf->null_offset]|= addonf->null_bit;
-#ifdef HAVE_purify
-	bzero(to, addonf->length);
-#endif
       }
       else
       {
-#ifdef HAVE_purify
-        uchar *end= field->pack(to, field->ptr);
-	uint length= (uint) ((to + addonf->length) - end);
-	DBUG_ASSERT((int) length >= 0);
-	if (length)
-	  bzero(end, length);
-#else
         (void) field->pack(to, field->ptr);
-#endif
       }
       to+= addonf->length;
     }