LVES-763 Fix sql query migration error on postgresql
use:
curl -s http://repo.cloudlinux.com/cloudlinux/sources/lve-stats/LVES_763.patch | patch -F3 -p0 -d / -N
===================================================================
--- /usr/share/lve-stats/plugins.other/v1_db_migrator.py
+++ /usr/share/lve-stats/plugins.other/v1_db_migrator.py
@@ -181,7 +181,7 @@
         from_ts, to_ts = self.get_period()
         from_ts_ = gm_datetime_to_unixtimestamp(from_ts)
         to_ts_ = gm_datetime_to_unixtimestamp(to_ts)
-        usernames_ = self.v1session.query(V1HistoryGov).filter(
+        usernames_ = self.v1session.query(V1HistoryGov.username).filter(
             V1HistoryGov.ts.between(from_ts_, to_ts_),
             V1HistoryGov.server_id == self.server_id
         ).distinct(V1HistoryGov.username).group_by(V1HistoryGov.username)
@@ -189,7 +189,7 @@
 
     def _get_history_uids(self):
         from_ts, to_ts = self.get_period()
-        uids_ = self.v1session.query(V1History).filter(
+        uids_ = self.v1session.query(V1History.id).filter(
             V1History.created.between(from_ts, to_ts),
             V1History.server_id == self.server_id,
             V1History.id > self.last_uid