diff --git a/src/pg/test/expected/41_observatory_augmentation_test.out b/src/pg/test/expected/41_observatory_augmentation_test.out
index 5b13d3e..1a14f88 100644
--- a/src/pg/test/expected/41_observatory_augmentation_test.out
+++ b/src/pg/test/expected/41_observatory_augmentation_test.out
@@ -26,19 +26,19 @@ Done.
  9516.27915900609 | 6152.51885204623 | 3363.76030695986 |       28.8 | 5301.51624447348 | 149.500458087105 | 230.000704749392 | 3835.26175169611 |              0 |              0 |                     0 | 5681.01740730998 | 3323.51018362871 |  7107.02177675621 |      1040.753188991 |      69.0002114248176 |      793.502431385402 |  327.751004267883 |  2742.7584041365 | 931.502854235037 |         66304 |     0.3494 |             28291 | 3662.76122313407 |     339.251039505353 |              120.750369993431 |                             0 |        1764 |                         35.3 |             339.251039505353 |                            0 |        224.250687130657 |  6549.27006773893 |     327.751004267883 |    28.750088093674 |   201.250616655718 |   621.001902823358 |   373.751145217762 |    1851.5056732326 |   1414.50433420876 |   1115.50341803455 |     615.251885204623 |                               |   57.500176187348 |                  0 |   212.750651893187 |   408.251250930171 |                  0 |    155.25047570584 |   109.250334755961 |   92.0002818997568 |   63.2501938060828 |   184.000563799514 |   621.001902823358 |   552.001691398541 |     327.751004267883 |     333.501021886618 |     126.500387612166 |                       |          
 (1 row)
 
-      dimension       |           dimension_value           
-----------------------+-------------------------------------
- {total_pop,male_pop} | {9516.27915900609,6152.51885204623}
+test_obsgetcensuswithtestpointand2variables 
+---------------------------------------------
+t
 (1 row)
 
-       dimension       | dimension_value 
------------------------+-----------------
- {female_pop,male_pop} | {NULL,NULL}
+test_obsgetcensuswithnullislandarea 
+-------------------------------------
+t
 (1 row)
 
-       dimension       | dimension_value 
------------------------+-----------------
- {female_pop,male_pop} | {}
+test_obsgetcensuswithnullisland 
+---------------------------------
+t
 (1 row)
 
 obs_get_gini_index_at_test_point 
diff --git a/src/pg/test/sql/41_observatory_augmentation_test.sql b/src/pg/test/sql/41_observatory_augmentation_test.sql
index 137b021..ad7cf1a 100644
--- a/src/pg/test/sql/41_observatory_augmentation_test.sql
+++ b/src/pg/test/sql/41_observatory_augmentation_test.sql
@@ -13,28 +13,42 @@ SELECT * FROM
 -- total_pop | 9516.27915900609
 -- male_pop  | 6152.51885204623
 
-SELECT *
-FROM
-  cdb_observatory._OBS_GetCensus(
-    cdb_observatory._TestPoint(),
-    Array['total_pop','male_pop']::text[]
-  );
-
+WITH result as (
+  SELECT array_agg(_obs_getcensus->>'value') as b
+  FROM( select * from 
+    cdb_observatory._OBS_GetCensus(
+      cdb_observatory._TestPoint(),
+      Array['total_pop','male_pop']::text[]
+    )) a
+) 
+select b='{9516.27915900609,6152.51885204623}'
+  as test_obsGetCensusWithTestPointAnd2Variables
+  from result;
 -- what happens on null island?
 -- expect nulls back: {female_pop, male_pop} | {NULL, NULL}
-SELECT *
-FROM
-  cdb_observatory._OBS_GetCensus(
-    ST_Buffer(CDB_LatLng(0, 0)::geography, 5000)::geometry,
-    Array['female_pop','male_pop']::text[]
-  );
+
+WITH result as (
+  SELECT count(vals) non_null
+  FROM( select _OBS_GetCensus->>'value' vals from 
+    cdb_observatory._OBS_GetCensus(
+      ST_Buffer(CDB_LatLng(0, 0)::geography, 5000)::geometry,
+      Array['total_pop','male_pop']::text[]
+    )) a
+) 
+SELECT non_null = 0 as test_obsGetCensusWithNullIslandArea
+FROM result;
+
 -- expect nulls back {female_pop, male_pop} | {NULL, NULL}
-SELECT *
-FROM
-  cdb_observatory._OBS_GetCensus(
-    CDB_LatLng(0, 0),
-    Array['female_pop', 'male_pop']::text[]
-  );
+WITH result as (
+  SELECT count(vals) non_null
+  FROM( select _OBS_GetCensus->>'value' vals from 
+    cdb_observatory._OBS_GetCensus(
+      CDB_LatLng(0, 0),
+      Array['total_pop','male_pop']::text[]
+    )) a
+) 
+SELECT non_null = 0 as test_obsGetCensusWithNullIsland
+FROM result;
 
 --
 -- names      | vals