Add missing useful columns in vacuum_stats.sql

Author: chaadow

lib/ruby_pg_extras/queries/vacuum_stats.sql

@@ -35,7 +35,9 @@ SELECT
   vacuum_settings.nspname AS schema,
   vacuum_settings.relname AS table,
   to_char(psut.last_vacuum, 'YYYY-MM-DD HH24:MI') AS last_vacuum,
+  to_char(psut.vacuum_count, '9G999G999G999') AS vacuum_count,
   to_char(psut.last_autovacuum, 'YYYY-MM-DD HH24:MI') AS last_autovacuum,
+  to_char(psut.autovacuum_count, '9G999G999G999') AS autovacuum_count,
   to_char(pg_class.reltuples, '9G999G999G999') AS rowcount,
   to_char(psut.n_dead_tup, '9G999G999G999') AS dead_rowcount,
   to_char(