Merge "Enforce reverse time-order for sample return"

ceilometer/storage/impl_sqlalchemy.py

@@ -23,6 +23,7 @@ import operator
 import os
 import uuid
 from sqlalchemy import func
+from sqlalchemy import desc
 
 from ceilometer.openstack.common import log
 from ceilometer.openstack.common import timeutils
@@ -343,7 +344,7 @@ class Connection(base.Connection):
                                        require_meter=False)
         if limit:
             query = query.limit(limit)
-        samples = query.all()
+        samples = query.from_self().order_by(desc(Meter.timestamp)).all()
 
         for s in samples:
             # Remove the id generated by the database when