-func.cmo: dbconn.cmi utility.cmi func.cmi
-func.cmx: dbconn.cmx utility.cmx func.cmi
-diff.cmo: mathql_semantics.cmo diff.cmi
-diff.cmx: mathql_semantics.cmx diff.cmi
-sortedby.cmo: func.cmi mathql_semantics.cmo utility.cmi sortedby.cmi
-sortedby.cmx: func.cmx mathql_semantics.cmx utility.cmx sortedby.cmi
-select.cmo: func.cmi mathql_semantics.cmo utility.cmi select.cmi
-select.cmx: func.cmx mathql_semantics.cmx utility.cmx select.cmi
-intersect.cmo: mathql_semantics.cmo intersect.cmi
-intersect.cmx: mathql_semantics.cmx intersect.cmi
-union.cmo: mathql_semantics.cmo union.cmi
-union.cmx: mathql_semantics.cmx union.cmi
-pattern.cmo: dbconn.cmi eval.cmi mathql_semantics.cmo utility.cmi pattern.cmi
-pattern.cmx: dbconn.cmx eval.cmx mathql_semantics.cmx utility.cmx pattern.cmi
-use.cmo: dbconn.cmi mathql_semantics.cmo utility.cmi use.cmi
-use.cmx: dbconn.cmx mathql_semantics.cmx utility.cmx use.cmi
-mqint.cmo: dbconn.cmi diff.cmi eval.cmi intersect.cmi mathql_semantics.cmo \
- pattern.cmi select.cmi sortedby.cmi union.cmi use.cmi utility.cmi \
- mqint.cmi
-mqint.cmx: dbconn.cmx diff.cmx eval.cmx intersect.cmx mathql_semantics.cmx \
- pattern.cmx select.cmx sortedby.cmx union.cmx use.cmx utility.cmx \
- mqint.cmi
+union.cmo: union.cmi
+union.cmx: union.cmi
+relation.cmo: dbconn.cmi union.cmi utility.cmi relation.cmi
+relation.cmx: dbconn.cmx union.cmx utility.cmx relation.cmi
+diff.cmo: diff.cmi
+diff.cmx: diff.cmi
+meet.cmo: meet.cmi
+meet.cmx: meet.cmi
+sub.cmo: sub.cmi
+sub.cmx: sub.cmi
+intersect.cmo: intersect.cmi
+intersect.cmx: intersect.cmi
+func.cmo: dbconn.cmi intersect.cmi utility.cmi func.cmi
+func.cmx: dbconn.cmx intersect.cmx utility.cmx func.cmi
+attribute.cmo: dbconn.cmi intersect.cmi utility.cmi attribute.cmi
+attribute.cmx: dbconn.cmx intersect.cmx utility.cmx attribute.cmi
+mqint.cmo: attribute.cmi context.cmo dbconn.cmi diff.cmi func.cmi \
+ intersect.cmi meet.cmi relation.cmi sub.cmi union.cmi mqint.cmi
+mqint.cmx: attribute.cmx context.cmx dbconn.cmx diff.cmx func.cmx \
+ intersect.cmx meet.cmx relation.cmx sub.cmx union.cmx mqint.cmi