YAZ_CHECK(compare(ct, "@attr 1=1016 abc", "abc"));
YAZ_CHECK(compare(ct, "@attr 2=1 @attr 1=30 1980", "dc.date:[* to 1980]"));
YAZ_CHECK(compare(ct, "@attr 1=30 @attr 2=3 1980", "dc.date:1980"));
YAZ_CHECK(compare(ct, "@attr 1=1016 abc", "abc"));
YAZ_CHECK(compare(ct, "@attr 2=1 @attr 1=30 1980", "dc.date:[* to 1980]"));
YAZ_CHECK(compare(ct, "@attr 1=30 @attr 2=3 1980", "dc.date:1980"));