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-rw-r--r--include/my_base.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/my_base.h b/include/my_base.h
index 6efac979a4e..b16a545b937 100644
--- a/include/my_base.h
+++ b/include/my_base.h
@@ -264,6 +264,7 @@ enum ha_base_keytype {
#define MBR_EQUAL 8192
#define MBR_DATA 16384
#define SEARCH_NULL_ARE_EQUAL 32768 /* NULL in keys are equal */
+#define SEARCH_NULL_ARE_NOT_EQUAL 65536 /* NULL in keys are not equal */
/* bits in opt_flag */
#define QUICK_USED 1