Adding creationg of indexes in installation script for sqlite

utils/create_db.sh

@@ -14,6 +14,9 @@ if [ ! -e $1 ]; then
   	exit 1
   fi
   $SQLITE3 $1 'CREATE TABLE document (uri varcharg(1000), doc varchar(1000), format varchar(50));'
+  $SQLITE3 $1 'CREATE INDEX IF NOT EXISTS document_uri ON document(uri);'
+  $SQLITE3 $1 'CREATE INDEX IF NOT EXISTS document_uri_format ON document(uri, format);'
+  $SQLITE3 $1 'CREATE INDEX IF NOT EXISTS document_doc ON document(doc);'
 else
   echo "WARNING: SQLite database already exists."
 fi