Merge branch 'add-kurtosis' of https://github.com/CartoDB/cartodb-postgresql into add-kurtosis

scripts-enabled/CDB_Stats.sql

@@ -1 +1 @@
-scripts-available/CDB_Stats.sql
+../scripts-available/CDB_Stats.sql

test/CDB_StatsTest.sql

@@ -1,5 +1,6 @@
 -- continuous uniform distribution has kurtosis = -6/5, skewness = 0.0
 -- http://mathworld.wolfram.com/UniformDistribution.html
+set client_min_messages to ERROR;
 
 With dist As (
   SELECT random()::numeric As val
@@ -10,4 +11,6 @@ SELECT
   -- does random dist values match within 1% of known values
   abs(CDB_Kurtosis(array_agg(val)) + 1.20) < 1e-2 As kurtosis,
   abs(CDB_Skewness(array_agg(val)) - 0) < 1e-2 As skewness
-FROM dist
+FROM dist;
+
+set client_min_messages to NOTICE;

test/CDB_StatsTest_expect

@@ -1 +1,3 @@
-true|true
+SET
+t|t
+SET