--- a/examples/blog/src/lib/Db.luan	Thu Sep 05 01:29:57 2019 -0600
+++ b/examples/blog/src/lib/Db.luan	Fri Sep 06 00:19:47 2019 -0600
@@ -1,16 +1,23 @@
 local Lucene = require "luan:lucene/Lucene.luan"
 local Io = require "luan:Io.luan"
+local Hosting = require "luan:host/Hosting.luan"
+local Logging = require "luan:logging/Logging.luan"
+local logger = Logging.logger "Db"
 
 
 local Db = {}
 
-local function completer(doc)
-	return doc
+local postgres_spec = Hosting.postgres_spec and Hosting.postgres_spec()
+logger.info("postgres_spec="..postgres_spec)
+if postgres_spec ~= nil then
+	function postgres_spec.completer(doc)
+		return doc
+	end
 end
 
 function Db.new(lucene_dir)
 	local dir = Io.uri(lucene_dir)
-	local db = Lucene.index( dir, Lucene.type.english, {"subject","content"}, completer )
+	local db = Lucene.index( dir, Lucene.type.english, {"subject","content"}, postgres_spec )
 	
 --	this is how you index a field
 --	db.indexed_fields.post_date = Lucene.type.long