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-rw-r--r--sql/item_cmpfunc.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/item_cmpfunc.h b/sql/item_cmpfunc.h
index 41e7060335c..28ba6199bee 100644
--- a/sql/item_cmpfunc.h
+++ b/sql/item_cmpfunc.h
@@ -245,7 +245,7 @@ public:
longlong val_int();
enum Functype functype() const { return NE_FUNC; }
cond_result eq_cmp_result() const { return COND_FALSE; }
- optimize_type select_optimize() const { return OPTIMIZE_NONE; }
+ optimize_type select_optimize() const { return OPTIMIZE_KEY; }
const char *func_name() const { return "<>"; }
};