From b074c1194b64e0784eacee05bd438ec413e45d12 Mon Sep 17 00:00:00 2001
From: Andy Eschbacher <andy.eschbacher@gmail.com>
Date: Mon, 16 May 2016 11:50:12 -0400
Subject: [PATCH 1/2] casting return types to text

---
 src/pg/sql/42_observatory_exploration.sql | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/pg/sql/42_observatory_exploration.sql b/src/pg/sql/42_observatory_exploration.sql
index 8b0d34a..bcb1b77 100644
--- a/src/pg/sql/42_observatory_exploration.sql
+++ b/src/pg/sql/42_observatory_exploration.sql
@@ -100,10 +100,10 @@ BEGIN
   EXECUTE
   $string$
       SELECT
-        column_id,
-        obs_column.description,
-        timespan,
-        tablename
+        column_id::text As column_id,
+        obs_column.description::text As description,
+        timespan::text As timespan,
+        tablename::text As tablename
       FROM
         observatory.OBS_table,
         observatory.OBS_column_table,

From 4536de681ee74a348b610f4653536bc0d63c59b3 Mon Sep 17 00:00:00 2001
From: Mario de Frutos <mario.defrutos@cartodb.com>
Date: Mon, 16 May 2016 17:53:58 +0200
Subject: [PATCH 2/2] Cast aggregate to text

---
 src/pg/sql/42_observatory_exploration.sql | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pg/sql/42_observatory_exploration.sql b/src/pg/sql/42_observatory_exploration.sql
index bcb1b77..a2c1216 100644
--- a/src/pg/sql/42_observatory_exploration.sql
+++ b/src/pg/sql/42_observatory_exploration.sql
@@ -67,7 +67,7 @@ BEGIN
   EXECUTE format($string$
               SELECT id, description,
                 name,
-                  aggregate,
+                  aggregate::text,
                   NULL::TEXT source -- TODO use tags
                   FROM observatory.OBS_column
                   where name ilike     '%%' || %L || '%%'