case DataDictionary.FOREIGNKEY_CONSTRAINT:
ReferencedKeyConstraintDescriptor referencedConstraint = DDUtils.locateReferencedConstraint
( dd, td, constraintName, columnNames, otherConstraintInfo );
DDUtils.validateReferentialActions(dd, td, constraintName, otherConstraintInfo,columnNames);
conDesc = ddg.newForeignKeyConstraintDescriptor(
td, constraintName,
characteristics[0], //deferable,
characteristics[1], //initiallyDeferred,
genColumnPositions(td, false), //int[],
constrId,