java - Appengine text search not working on numeric operations = and : queries on date field -


i using google appengine text search service sdk 1.7.5, i've saved field "created_time" , date field. when trying use numeric operations on created_time field, equal operation returning no results (no matches returned).

even if query on date fields >= or <= results returned processed > or < conditions

queries

created_time = 2013-04-13 or created_time : 2013-04-13 (neither of them worked),

created_time >= 2013-03-13 , created_time <= 2013-04-13 (returns results between 2 dates, excludes dates)


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