Support SQLite searching

test/test_helpers/search_test_helper.rb

@@ -28,8 +28,13 @@ module SearchTestHelper
 
   private
     def clear_search_records
-      Search::Record::SHARD_COUNT.times do |shard_id|
-        ActiveRecord::Base.connection.execute("DELETE FROM search_records_#{shard_id}")
+      if Search::Record.sqlite?
+        ActiveRecord::Base.connection.execute("DELETE FROM search_records")
+        ActiveRecord::Base.connection.execute("DELETE FROM search_records_fts")
+      else
+        Search::Record::SHARD_COUNT.times do |shard_id|
+          ActiveRecord::Base.connection.execute("DELETE FROM search_records_#{shard_id}")
+        end
       end
     end
 end