Within all the posts in this Topic ... http://help.zoho.com/portal/en/community/?ftid=2266000000515054#2266000000512211 ... this suggestion might be lost on the ZOHO Creator Team ...
I think that if ZOHO Creator had a command like ...
fieldName:ui.addCollection(collectionName.FieldName)
... you could then do something like ...
mySchools= Schools[State_Code == "TX"];
selectSchool:ui.addCollection(mySchools.School_Name);
.. and it would be a lot faster.