+ec MR_BUSY,
+ "the database is busy; try again later"
+
+ec MR_DOWN,
+ "the database is closed right now; try again later"
+
+ec MR_LISTLOOP,
+ "Lists are not allowed to contain themselves as members"
+
+ec MR_INGRES_SOFTFAIL,
+ "Temporary database failure, try again"
+
+ec MR_COREDUMP,
+ "Subprocess coredumped"
+