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-rw-r--r--sql/filesort.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/filesort.cc b/sql/filesort.cc
index 14cac5b01db..7dd755308f1 100644
--- a/sql/filesort.cc
+++ b/sql/filesort.cc
@@ -769,7 +769,7 @@ static void make_sortkey(register SORTPARAM *param,
*/
SORT_ADDON_FIELD *addonf= param->addon_field;
uchar *nulls= to;
- DBUG_ASSERT(addonf);
+ DBUG_ASSERT(addonf != 0);
bzero((char *) nulls, addonf->offset);
to+= addonf->offset;
for ( ; (field= addonf->field) ; addonf++)