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-rw-r--r--sql/mysqld.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/mysqld.h b/sql/mysqld.h
index 2b932b8ce7f..29164c7629e 100644
--- a/sql/mysqld.h
+++ b/sql/mysqld.h
@@ -39,6 +39,8 @@ typedef struct st_mysql_show_var SHOW_VAR;
#if MAX_INDEXES <= 64
typedef Bitmap<64> key_map; /* Used for finding keys */
+#elif MAX_INDEXES > 128
+#error "MAX_INDEXES values greater than 128 is not supported."
#else
typedef Bitmap<((MAX_INDEXES+7)/8*8)> key_map; /* Used for finding keys */
#endif