From 49c4cea4e7736bde316e4c921689d6dbe2735d73 Mon Sep 17 00:00:00 2001
From: Andy Eschbacher <eschbacher@cartodb.com>
Date: Tue, 25 Aug 2015 22:45:55 -0400
Subject: [PATCH 01/15] adding kurtosis

---
 scripts-available/CDB_Stats.sql | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 scripts-available/CDB_Stats.sql

diff --git a/scripts-available/CDB_Stats.sql b/scripts-available/CDB_Stats.sql
new file mode 100644
index 0000000..f0a47ba
--- /dev/null
+++ b/scripts-available/CDB_Stats.sql
@@ -0,0 +1,33 @@
+--
+-- Calculate the Pearson kurtosis of the input data
+--
+-- @param in_array A numeric array of numbers to determine the best
+--                   to determine the bin boundary
+--
+-- @param breaks The number of bins you want to find.
+--  
+--
+-- Returns: upper edges of bins
+-- 
+--
+
+CREATE OR REPLACE FUNCTION CDB_Kurtosis ( in_array NUMERIC[] ) RETURNS NUMERIC as $$
+DECLARE 
+    a numeric;
+    c numeric;
+    s numeric;
+    k numeric;
+BEGIN
+    SELECT AVG(e), COUNT(e)::numeric, stddev(e) INTO a, c, s FROM ( SELECT unnest(in_array) e ) x;
+
+    RAISE NOTICE 'avg: %, cnt: %, std: %', a, c, s;
+
+    EXECUTE '
+        SELECT sum(power($1 - e,4)) / ( $2 * power($3, 4))
+        FROM (SELECT unnest($4) e ) x'
+    INTO k
+    USING a, c, s, in_array;
+
+    RETURN k;
+END;
+$$ language plpgsql IMMUTABLE;

From db323f3e13574cf700c62e5a2001d669f1152960 Mon Sep 17 00:00:00 2001
From: Andy Eschbacher <eschbacher@cartodb.com>
Date: Tue, 25 Aug 2015 22:58:31 -0400
Subject: [PATCH 02/15] adding skewness

---
 scripts-available/CDB_Stats.sql | 39 +++++++++++++++++++++++----------
 1 file changed, 28 insertions(+), 11 deletions(-)

diff --git a/scripts-available/CDB_Stats.sql b/scripts-available/CDB_Stats.sql
index f0a47ba..b9b765b 100644
--- a/scripts-available/CDB_Stats.sql
+++ b/scripts-available/CDB_Stats.sql
@@ -1,18 +1,15 @@
 --
--- Calculate the Pearson kurtosis of the input data
+-- Calculate basic statistics of a given dataset
 --
--- @param in_array A numeric array of numbers to determine the best
---                   to determine the bin boundary
+-- @param in_array A numeric array of numbers
 --
--- @param breaks The number of bins you want to find.
---  
---
--- Returns: upper edges of bins
+-- Returns: statistical quantity chosen
 -- 
 --
 
+-- Calculate Pearson's moment coefficient of kurtosis
 CREATE OR REPLACE FUNCTION CDB_Kurtosis ( in_array NUMERIC[] ) RETURNS NUMERIC as $$
-DECLARE 
+DECLARE
     a numeric;
     c numeric;
     s numeric;
@@ -22,12 +19,32 @@ BEGIN
 
     RAISE NOTICE 'avg: %, cnt: %, std: %', a, c, s;
 
-    EXECUTE '
-        SELECT sum(power($1 - e,4)) / ( $2 * power($3, 4))
-        FROM (SELECT unnest($4) e ) x'
+    EXECUTE 'SELECT sum(power($1 - e, 4)) / ( $2 * power($3, 4))
+             FROM (SELECT unnest($4) e ) x'
     INTO k
     USING a, c, s, in_array;
 
     RETURN k;
 END;
 $$ language plpgsql IMMUTABLE;
+
+-- Calculate Pearson's moment coefficient of skewness
+CREATE OR REPLACE FUNCTION CDB_Skewness ( in_array NUMERIC[] ) RETURNS NUMERIC as $$
+DECLARE
+    a numeric;
+    c numeric;
+    s numeric;
+    sk numeric;
+BEGIN
+    SELECT AVG(e), COUNT(e)::numeric, stddev(e) INTO a, c, s FROM ( SELECT unnest(in_array) e ) x;
+
+    RAISE NOTICE 'avg: %, cnt: %, std: %', a, c, s;
+
+    EXECUTE 'SELECT sum(power($1 - e, 3)) / ( $2 * power($3, 3))
+             FROM (SELECT unnest($4) e ) x'
+    INTO sk
+    USING a, c, s, in_array;
+
+    RETURN sk;
+END;
+$$ language plpgsql IMMUTABLE;

From d723487f67811f1aa3ee13ad8d49a826b6867d41 Mon Sep 17 00:00:00 2001
From: Andy Eschbacher <eschbacher@cartodb.com>
Date: Tue, 25 Aug 2015 23:10:26 -0400
Subject: [PATCH 03/15] updated definition

---
 scripts-available/CDB_Stats.sql | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/scripts-available/CDB_Stats.sql b/scripts-available/CDB_Stats.sql
index b9b765b..543b3ee 100644
--- a/scripts-available/CDB_Stats.sql
+++ b/scripts-available/CDB_Stats.sql
@@ -5,9 +5,10 @@
 --
 -- Returns: statistical quantity chosen
 -- 
+-- References: http://www.itl.nist.gov/div898/handbook/eda/section3/eda35b.htm
 --
 
--- Calculate Pearson's moment coefficient of kurtosis
+-- Calculate kurtosis
 CREATE OR REPLACE FUNCTION CDB_Kurtosis ( in_array NUMERIC[] ) RETURNS NUMERIC as $$
 DECLARE
     a numeric;
@@ -19,7 +20,7 @@ BEGIN
 
     RAISE NOTICE 'avg: %, cnt: %, std: %', a, c, s;
 
-    EXECUTE 'SELECT sum(power($1 - e, 4)) / ( $2 * power($3, 4))
+    EXECUTE 'SELECT sum(power($1 - e, 4)) / ( $2 * power($3, 4)) - 3
              FROM (SELECT unnest($4) e ) x'
     INTO k
     USING a, c, s, in_array;
@@ -28,7 +29,7 @@ BEGIN
 END;
 $$ language plpgsql IMMUTABLE;
 
--- Calculate Pearson's moment coefficient of skewness
+-- Calculate skewness
 CREATE OR REPLACE FUNCTION CDB_Skewness ( in_array NUMERIC[] ) RETURNS NUMERIC as $$
 DECLARE
     a numeric;

From 14e2a65523f989e3879e0cef64e1b9479df4f199 Mon Sep 17 00:00:00 2001
From: Andy Eschbacher <eschbacher@cartodb.com>
Date: Tue, 25 Aug 2015 23:11:09 -0400
Subject: [PATCH 04/15] adding symlink

---
 scripts-enabled/CDB_Stats.sql | 1 +
 1 file changed, 1 insertion(+)
 create mode 120000 scripts-enabled/CDB_Stats.sql

diff --git a/scripts-enabled/CDB_Stats.sql b/scripts-enabled/CDB_Stats.sql
new file mode 120000
index 0000000..0d7fa50
--- /dev/null
+++ b/scripts-enabled/CDB_Stats.sql
@@ -0,0 +1 @@
+scripts-available/CDB_Stats.sql
\ No newline at end of file

From eb6fc4fefb5e6b95467aa83d0b831d9921e9c9f9 Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Wed, 2 Sep 2015 12:01:43 +0200
Subject: [PATCH 05/15] Use CDB_ColumnType and CDB_ColumnNames in bash tests

---
 test/extension/run_at_cartodb_schema.sql | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/test/extension/run_at_cartodb_schema.sql b/test/extension/run_at_cartodb_schema.sql
index c3792ff..0c09e5f 100644
--- a/test/extension/run_at_cartodb_schema.sql
+++ b/test/extension/run_at_cartodb_schema.sql
@@ -1,4 +1,6 @@
 SET SCHEMA 'cartodb';
 \i scripts-available/CDB_Quota.sql
 \i scripts-available/CDB_TableMetadata.sql
+\i scripts-available/CDB_ColumnNames.sql
+\i scripts-available/CDB_ColumnType.sql
 SET SCHEMA 'public';
\ No newline at end of file

From 4b5c5dd275ed36b912adb275ed632eb62e747777 Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Wed, 2 Sep 2015 12:04:52 +0200
Subject: [PATCH 06/15] CDB_ColumnNames uses schema and table name from
 regclass

Fixes #122
---
 scripts-available/CDB_ColumnNames.sql | 11 ++++++-----
 test/extension/test.sh                | 14 ++++++++++++++
 2 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/scripts-available/CDB_ColumnNames.sql b/scripts-available/CDB_ColumnNames.sql
index 693ba3d..51e0244 100644
--- a/scripts-available/CDB_ColumnNames.sql
+++ b/scripts-available/CDB_ColumnNames.sql
@@ -3,11 +3,12 @@ CREATE OR REPLACE FUNCTION CDB_ColumnNames(REGCLASS)
 RETURNS SETOF information_schema.sql_identifier
 AS $$
 
-    SELECT column_name 
-      FROM information_schema.columns 
-      WHERE
-        table_name IN (SELECT CDB_UserTables())
-        AND table_name = '' || $1 || '';
+    SELECT c.column_name
+      FROM information_schema.columns c, pg_class _tn, pg_namespace _sn
+      WHERE table_name = _tn.relname
+        AND table_schema = _sn.nspname
+        AND _tn.oid = $1::regclass::oid
+        AND _sn.oid = _tn.relnamespace;
          
 $$ LANGUAGE SQL;
 
diff --git a/test/extension/test.sh b/test/extension/test.sh
index ff9de57..f381232 100755
--- a/test/extension/test.sh
+++ b/test/extension/test.sh
@@ -337,6 +337,20 @@ function test_cdb_tablemetadatatouch_fails_from_user_without_permission() {
     sql postgres "REVOKE ALL ON CDB_TableMetadata FROM cdb_testmember_1;"
 }
 
+function test_cdb_column_names() {
+    sql cdb_testmember_1 'CREATE TABLE cdb_testmember_1.table_cnames(c int, a int, r int, t int, o int);'
+    sql cdb_testmember_2 'CREATE TABLE cdb_testmember_2.table_cnames(d int, b int);'
+
+    sql cdb_testmember_1 "SELECT string_agg(c,'') from (SELECT cartodb.CDB_ColumnNames('table_cnames') c) as s" should "carto"
+    sql cdb_testmember_2 "SELECT string_agg(c,'') from (SELECT cartodb.CDB_ColumnNames('table_cnames') c) as s" should "db"
+
+    sql postgres "SELECT string_agg(c,'') from (SELECT cartodb.CDB_ColumnNames('cdb_testmember_1.table_cnames'::regclass) c) as s" should "carto"
+    sql postgres "SELECT string_agg(c,'') from (SELECT cartodb.CDB_ColumnNames('cdb_testmember_2.table_cnames') c) as s" should "db"
+
+    sql cdb_testmember_1 'DROP TABLE cdb_testmember_1.table_cnames'
+    sql cdb_testmember_2 'DROP TABLE cdb_testmember_2.table_cnames'
+}
+
 #################################################### TESTS END HERE ####################################################
 
 run_tests $@

From 7582f2cbc59d01bd975a37bd220d5030327759a4 Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Wed, 2 Sep 2015 12:06:04 +0200
Subject: [PATCH 07/15] CDB_ColumnType uses schema and table from regclass

Fixes #130
---
 scripts-available/CDB_ColumnType.sql | 13 +++++++------
 test/extension/test.sh               | 14 ++++++++++++++
 2 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/scripts-available/CDB_ColumnType.sql b/scripts-available/CDB_ColumnType.sql
index f887771..7793c0b 100644
--- a/scripts-available/CDB_ColumnType.sql
+++ b/scripts-available/CDB_ColumnType.sql
@@ -3,12 +3,13 @@ CREATE OR REPLACE FUNCTION CDB_ColumnType(REGCLASS, TEXT)
 RETURNS information_schema.character_data
 AS $$
 
-    SELECT data_type 
-      FROM information_schema.columns 
-      WHERE
-        table_name IN (SELECT CDB_UserTables())
-        AND table_name = '' || $1 || ''
-        AND column_name = '' || quote_ident($2) || '';
+    SELECT c.data_type
+      FROM information_schema.columns c, pg_class _tn, pg_namespace _sn
+      WHERE table_name = _tn.relname
+        AND table_schema = _sn.nspname
+        AND column_name = $2
+        AND _tn.oid = $1::regclass::oid
+        AND _sn.oid = _tn.relnamespace;
          
 $$ LANGUAGE SQL;
 
diff --git a/test/extension/test.sh b/test/extension/test.sh
index f381232..f9ed2ec 100755
--- a/test/extension/test.sh
+++ b/test/extension/test.sh
@@ -351,6 +351,20 @@ function test_cdb_column_names() {
     sql cdb_testmember_2 'DROP TABLE cdb_testmember_2.table_cnames'
 }
 
+function test_cdb_column_type() {
+    sql cdb_testmember_1 'CREATE TABLE cdb_testmember_1.table_ctype(c int, a int, r int, t int, o int);'
+    sql cdb_testmember_2 'CREATE TABLE cdb_testmember_2.table_ctype(c text, a text, r text, t text, o text);'
+
+    sql cdb_testmember_1 "SELECT cartodb.CDB_ColumnType('table_ctype', 'c')" should "integer"
+    sql cdb_testmember_2 "SELECT cartodb.CDB_ColumnType('table_ctype', 'c')" should "text"
+
+    sql postgres "SELECT cartodb.CDB_ColumnType('cdb_testmember_1.table_ctype', 'c')" should "integer"
+    sql postgres "SELECT cartodb.CDB_ColumnType('cdb_testmember_2.table_ctype', 'c')" should "text"
+
+    sql cdb_testmember_1 'DROP TABLE cdb_testmember_1.table_ctype'
+    sql cdb_testmember_2 'DROP TABLE cdb_testmember_2.table_ctype'
+}
+
 #################################################### TESTS END HERE ####################################################
 
 run_tests $@

From afecef0e31569f044e5f0df594a5f7c51b52032b Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Wed, 2 Sep 2015 12:25:44 +0200
Subject: [PATCH 08/15] Removing redundant ::regclass casting

---
 scripts-available/CDB_ColumnNames.sql | 2 +-
 scripts-available/CDB_ColumnType.sql  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts-available/CDB_ColumnNames.sql b/scripts-available/CDB_ColumnNames.sql
index 51e0244..ebaf0b7 100644
--- a/scripts-available/CDB_ColumnNames.sql
+++ b/scripts-available/CDB_ColumnNames.sql
@@ -7,7 +7,7 @@ AS $$
       FROM information_schema.columns c, pg_class _tn, pg_namespace _sn
       WHERE table_name = _tn.relname
         AND table_schema = _sn.nspname
-        AND _tn.oid = $1::regclass::oid
+        AND _tn.oid = $1::oid
         AND _sn.oid = _tn.relnamespace;
          
 $$ LANGUAGE SQL;
diff --git a/scripts-available/CDB_ColumnType.sql b/scripts-available/CDB_ColumnType.sql
index 7793c0b..8ddc36b 100644
--- a/scripts-available/CDB_ColumnType.sql
+++ b/scripts-available/CDB_ColumnType.sql
@@ -8,7 +8,7 @@ AS $$
       WHERE table_name = _tn.relname
         AND table_schema = _sn.nspname
         AND column_name = $2
-        AND _tn.oid = $1::regclass::oid
+        AND _tn.oid = $1::oid
         AND _sn.oid = _tn.relnamespace;
          
 $$ LANGUAGE SQL;

From 2867a6fbad59c3e339a30c4ac74c0c9ea3eb3918 Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Wed, 2 Sep 2015 12:32:34 +0200
Subject: [PATCH 09/15] Assert user can use its schema to retrieve column names

---
 test/extension/test.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/extension/test.sh b/test/extension/test.sh
index f9ed2ec..0a59630 100755
--- a/test/extension/test.sh
+++ b/test/extension/test.sh
@@ -347,6 +347,9 @@ function test_cdb_column_names() {
     sql postgres "SELECT string_agg(c,'') from (SELECT cartodb.CDB_ColumnNames('cdb_testmember_1.table_cnames'::regclass) c) as s" should "carto"
     sql postgres "SELECT string_agg(c,'') from (SELECT cartodb.CDB_ColumnNames('cdb_testmember_2.table_cnames') c) as s" should "db"
 
+    # Using schema from owner
+    sql cdb_testmember_1 "SELECT string_agg(c,'') from (SELECT cartodb.CDB_ColumnNames('cdb_testmember_1.table_cnames') c) as s" should "carto"
+
     sql cdb_testmember_1 'DROP TABLE cdb_testmember_1.table_cnames'
     sql cdb_testmember_2 'DROP TABLE cdb_testmember_2.table_cnames'
 }

From e28b6344aa272f0d7940f5054525098a7794231c Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Wed, 2 Sep 2015 12:32:43 +0200
Subject: [PATCH 10/15] Assert it's not possible to get column names from a
 table without permissions

---
 test/extension/test.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/extension/test.sh b/test/extension/test.sh
index 0a59630..d86a687 100755
--- a/test/extension/test.sh
+++ b/test/extension/test.sh
@@ -350,6 +350,9 @@ function test_cdb_column_names() {
     # Using schema from owner
     sql cdb_testmember_1 "SELECT string_agg(c,'') from (SELECT cartodb.CDB_ColumnNames('cdb_testmember_1.table_cnames') c) as s" should "carto"
 
+    ## it's not possible to get column names from a table where you don't have permissions
+    sql cdb_testmember_2 "SELECT string_agg(c,'') from (SELECT cartodb.CDB_ColumnNames('cdb_testmember_1.table_cnames') c) as s" fails
+
     sql cdb_testmember_1 'DROP TABLE cdb_testmember_1.table_cnames'
     sql cdb_testmember_2 'DROP TABLE cdb_testmember_2.table_cnames'
 }

From 07280321ab4f99a1314550806c1c3f9879721cda Mon Sep 17 00:00:00 2001
From: Andy Eschbacher <eschbacher@cartodb.com>
Date: Wed, 2 Sep 2015 22:19:07 -0400
Subject: [PATCH 11/15] adding tests

---
 test/CDB_StatsTest.sql    | 17 +++++++++++++++++
 test/CDB_StatsTest_expect |  1 +
 2 files changed, 18 insertions(+)
 create mode 100644 test/CDB_StatsTest.sql
 create mode 100644 test/CDB_StatsTest_expect

diff --git a/test/CDB_StatsTest.sql b/test/CDB_StatsTest.sql
new file mode 100644
index 0000000..2bcbf69
--- /dev/null
+++ b/test/CDB_StatsTest.sql
@@ -0,0 +1,17 @@
+-- continuous uniform distribution has kurtosis = -6/5, skewness = 0.0
+-- http://mathworld.wolfram.com/UniformDistribution.html
+
+With dist As (
+  SELECT random() As val
+  FROM generate_series(1,5000000) t
+),
+m As (
+  SELECT avg(val) mn, count(*) cnt, stddev(val) s
+  FROM dist
+  )
+
+SELECT 
+  abs(sum(power(mn - val,4)) / ( cnt * power(s,4)) - 3 + 1.20) < 1e-3 As kurtosis,
+  abs(sum(power(mn - val,3)) / ( cnt * power(s,3))) < 1e-3 As skewness
+FROM dist, m
+GROUP BY m.cnt, m.mn, m.s
\ No newline at end of file
diff --git a/test/CDB_StatsTest_expect b/test/CDB_StatsTest_expect
new file mode 100644
index 0000000..c1a8116
--- /dev/null
+++ b/test/CDB_StatsTest_expect
@@ -0,0 +1 @@
+true|true

From d00e71309d62f4f8353e4bcba73e2c2f7e8d33e5 Mon Sep 17 00:00:00 2001
From: Andy Eschbacher <eschbacher@cartodb.com>
Date: Wed, 2 Sep 2015 22:35:03 -0400
Subject: [PATCH 12/15] really add tests

---
 test/CDB_StatsTest.sql | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/test/CDB_StatsTest.sql b/test/CDB_StatsTest.sql
index 2bcbf69..5bfb5dc 100644
--- a/test/CDB_StatsTest.sql
+++ b/test/CDB_StatsTest.sql
@@ -2,16 +2,12 @@
 -- http://mathworld.wolfram.com/UniformDistribution.html
 
 With dist As (
-  SELECT random() As val
+  SELECT random()::numeric As val
   FROM generate_series(1,5000000) t
-),
-m As (
-  SELECT avg(val) mn, count(*) cnt, stddev(val) s
-  FROM dist
-  )
+)
 
 SELECT 
-  abs(sum(power(mn - val,4)) / ( cnt * power(s,4)) - 3 + 1.20) < 1e-3 As kurtosis,
-  abs(sum(power(mn - val,3)) / ( cnt * power(s,3))) < 1e-3 As skewness
-FROM dist, m
-GROUP BY m.cnt, m.mn, m.s
\ No newline at end of file
+  -- 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
\ No newline at end of file

From 29efdf2ee726bdbc7c8a82242a80a5b452ed7a11 Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Fri, 4 Sep 2015 00:00:30 +0200
Subject: [PATCH 13/15] Fix symlink for CDB_Stats.sql

---
 scripts-enabled/CDB_Stats.sql | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts-enabled/CDB_Stats.sql b/scripts-enabled/CDB_Stats.sql
index 0d7fa50..37abd7b 120000
--- a/scripts-enabled/CDB_Stats.sql
+++ b/scripts-enabled/CDB_Stats.sql
@@ -1 +1 @@
-scripts-available/CDB_Stats.sql
\ No newline at end of file
+../scripts-available/CDB_Stats.sql
\ No newline at end of file

From 25cf48d4a491bdd8b6a6fe14676c4822d71a56ae Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Fri, 4 Sep 2015 00:02:30 +0200
Subject: [PATCH 14/15] Raise min message so we don't have to validate notices

---
 test/CDB_StatsTest.sql    | 5 ++++-
 test/CDB_StatsTest_expect | 4 +++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/test/CDB_StatsTest.sql b/test/CDB_StatsTest.sql
index 5bfb5dc..9cb6bc2 100644
--- a/test/CDB_StatsTest.sql
+++ b/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
\ No newline at end of file
+FROM dist;
+
+set client_min_messages to NOTICE;
diff --git a/test/CDB_StatsTest_expect b/test/CDB_StatsTest_expect
index c1a8116..fdc125d 100644
--- a/test/CDB_StatsTest_expect
+++ b/test/CDB_StatsTest_expect
@@ -1 +1,3 @@
-true|true
+SET
+t|t
+SET

From 83b7f47617b900d62cf21281c3f12cc7a422ea56 Mon Sep 17 00:00:00 2001
From: Andy Eschbacher <eschbacher@cartodb.com>
Date: Thu, 3 Sep 2015 22:43:25 -0400
Subject: [PATCH 15/15] removing raise notices and lower test bounds

---
 scripts-available/CDB_Stats.sql | 4 ----
 test/CDB_StatsTest.sql          | 2 +-
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/scripts-available/CDB_Stats.sql b/scripts-available/CDB_Stats.sql
index 543b3ee..e16748c 100644
--- a/scripts-available/CDB_Stats.sql
+++ b/scripts-available/CDB_Stats.sql
@@ -18,8 +18,6 @@ DECLARE
 BEGIN
     SELECT AVG(e), COUNT(e)::numeric, stddev(e) INTO a, c, s FROM ( SELECT unnest(in_array) e ) x;
 
-    RAISE NOTICE 'avg: %, cnt: %, std: %', a, c, s;
-
     EXECUTE 'SELECT sum(power($1 - e, 4)) / ( $2 * power($3, 4)) - 3
              FROM (SELECT unnest($4) e ) x'
     INTO k
@@ -39,8 +37,6 @@ DECLARE
 BEGIN
     SELECT AVG(e), COUNT(e)::numeric, stddev(e) INTO a, c, s FROM ( SELECT unnest(in_array) e ) x;
 
-    RAISE NOTICE 'avg: %, cnt: %, std: %', a, c, s;
-
     EXECUTE 'SELECT sum(power($1 - e, 3)) / ( $2 * power($3, 3))
              FROM (SELECT unnest($4) e ) x'
     INTO sk
diff --git a/test/CDB_StatsTest.sql b/test/CDB_StatsTest.sql
index 5bfb5dc..06ef647 100644
--- a/test/CDB_StatsTest.sql
+++ b/test/CDB_StatsTest.sql
@@ -3,7 +3,7 @@
 
 With dist As (
   SELECT random()::numeric As val
-  FROM generate_series(1,5000000) t
+  FROM generate_series(1,50000) t
 )
 
 SELECT