diff --git a/release/observatory--1.9.0.sql b/release/observatory--1.9.0.sql
index d69d20b..eef2b90 100644
--- a/release/observatory--1.9.0.sql
+++ b/release/observatory--1.9.0.sql
@@ -1830,9 +1830,7 @@ CREATE OR REPLACE FUNCTION cdb_observatory.OBS_GetAvailableTimespans(
   timespan_tags JSONB,
   valid_numer BOOLEAN,
   valid_denom BOOLEAN,
-  valid_geom BOOLEAN,
-  timespan_alias TEXT,
-  timespan_range DATERANGE
+  valid_geom BOOLEAN
 ) AS $$
 DECLARE
   geom_clause TEXT;
@@ -1861,9 +1859,7 @@ BEGIN
            NULL::JSONB timespan_tags,
     COALESCE($1 = ANY(numers), false) valid_numer,
     COALESCE($2 = ANY(denoms), false) valid_denom,
-    COALESCE($3 = ANY(geoms), false) valid_geom_id,
-           timespan_alias::TEXT,
-           timespan_range::DATERANGE
+    COALESCE($3 = ANY(geoms), false) valid_geom_id
     FROM observatory.obs_meta_timespan
     WHERE %s (timespan_tags ?& $4 OR CARDINALITY($4) = 0)
   $string$, geom_clause)
diff --git a/src/pg/sql/42_observatory_exploration.sql b/src/pg/sql/42_observatory_exploration.sql
index 9cce2d7..c63241a 100644
--- a/src/pg/sql/42_observatory_exploration.sql
+++ b/src/pg/sql/42_observatory_exploration.sql
@@ -424,9 +424,7 @@ CREATE OR REPLACE FUNCTION cdb_observatory.OBS_GetAvailableTimespans(
   timespan_tags JSONB,
   valid_numer BOOLEAN,
   valid_denom BOOLEAN,
-  valid_geom BOOLEAN,
-  timespan_alias TEXT,
-  timespan_range DATERANGE
+  valid_geom BOOLEAN
 ) AS $$
 DECLARE
   geom_clause TEXT;
@@ -455,9 +453,7 @@ BEGIN
            NULL::JSONB timespan_tags,
     COALESCE($1 = ANY(numers), false) valid_numer,
     COALESCE($2 = ANY(denoms), false) valid_denom,
-    COALESCE($3 = ANY(geoms), false) valid_geom_id,
-           timespan_alias::TEXT,
-           timespan_range::DATERANGE
+    COALESCE($3 = ANY(geoms), false) valid_geom_id
     FROM observatory.obs_meta_timespan
     WHERE %s (timespan_tags ?& $4 OR CARDINALITY($4) = 0)
   $string$, geom_clause)