[LNT] r312605 - Slightly optimize some counting queries

[Matthias Braun via llvm-commits]

Author: matze
Date: Tue Sep  5 19:03:45 2017
New Revision: 312605

URL: http://llvm.org/viewvc/llvm-project?rev=312605&view=rev
Log:
Slightly optimize some counting queries

Modified:
    lnt/trunk/lnt/server/db/testsuitedb.py

Modified: lnt/trunk/lnt/server/db/testsuitedb.py
URL: http://llvm.org/viewvc/llvm-project/lnt/trunk/lnt/server/db/testsuitedb.py?rev=312605&r1=312604&r2=312605&view=diff
==============================================================================
--- lnt/trunk/lnt/server/db/testsuitedb.py (original)
+++ lnt/trunk/lnt/server/db/testsuitedb.py Tue Sep  5 19:03:45 2017
@@ -1130,16 +1130,16 @@ class TestSuiteDB(object):
         return "TestSuiteDB('%s')" % self.name
 
     def getNumMachines(self, session):
-        return session.query(self.Machine).count()
+        return session.query(sqlalchemy.func.count(self.Machine.id)).scalar()
 
     def getNumRuns(self, session):
-        return session.query(self.Run).count()
+        return session.query(sqlalchemy.func.count(self.Run.id)).scalar()
 
     def getNumSamples(self, session):
-        return session.query(self.Sample).count()
+        return session.query(sqlalchemy.func.count(self.Sample.id)).scalar()
 
     def getNumTests(self, session):
-        return session.query(self.Test).count()
+        return session.query(sqlalchemy.func.count(self.Test.id)).scalar()
 
     def get_field_index(self, sample_field):
         return self.sample_field_indexes[sample_field.name]