--- a/lucene/src/luan/modules/lucene/Ab_testing.luan	Mon Jun 08 01:11:08 2015 -0400
+++ b/lucene/src/luan/modules/lucene/Ab_testing.luan	Fri Jun 12 19:11:44 2015 -0600
@@ -10,6 +10,7 @@
 local Io = require "luan:Io"
 local Http = require "luan:http/Http"
 local Logging = require "luan:logging/Logging"
+local Lucene = require "luan:lucene/Lucene"
 
 local M = {}
 
@@ -34,8 +35,8 @@
 		-- test.date_field is optional
 
 		local field = "ab_test_" .. test.name
-		index.fields[field] == nil or error("test "+test.name+" already defined")
-		index.fields[field] = field .. " index"
+		index.indexed_fields[field] == nil or error("test "+test.name+" already defined")
+		index.indexed_fields[field] = Lucene.type.string
 		test.field = field
 
 		-- returns map of event name to (map of value to result) and "start_date"
@@ -52,7 +53,7 @@
 					for name, factory in pairs(test.aggregator_factories) do
 						aggregators[name] = factory()
 					end
-					local query = index.query.term{ [field] = value }
+					local query = field..":"..value
 					searcher.search(query, function(doc)
 						for _, aggregator in pairs(aggregators) do
 							aggregator.aggregate(doc)