work on #8, needs further testing

schema.sql

@@ -196,6 +196,9 @@ WITH (
 ALTER TABLE all_reports
   OWNER TO postgres;
 
+-- Create table to store id of last seen tweet id as captured using GNIP
+CREATE TABLE seen_tweet_id (onerow_id bool PRIMARY KEY DEFAULT TRUE, id bigint, CONSTRAINT onerow_uni CHECK (onerow_ID));
+
 -- Add Geometry column to tweet_reports
 SELECT AddGeometryColumn ('public','all_reports','the_geom',4326,'POINT',2);
 ALTER TABLE all_reports ALTER COLUMN the_geom SET NOT NULL;