diff --git a/lib/cartodb/models/dataview/histogram.js b/lib/cartodb/models/dataview/histogram.js
index b07aa474..c27c696f 100644
--- a/lib/cartodb/models/dataview/histogram.js
+++ b/lib/cartodb/models/dataview/histogram.js
@@ -9,42 +9,42 @@ var columnCastTpl = dot.template("date_part('epoch', {{=it.column}})");
 
 var dateIntervalQueryTpl = dot.template([
     'WITH',
-    'dates AS (',
+    '__cdb_dates AS (',
     '    SELECT',
-    '        MAX({{=it.column}}::timestamp) AS _end,',
-    '        MIN({{=it.column}}::timestamp) AS _start',
-    '    FROM ({{=it.query}}) _cdb_source',
+    '        MAX({{=it.column}}::timestamp) AS __cdb_end,',
+    '        MIN({{=it.column}}::timestamp) AS __cdb_start',
+    '    FROM ({{=it.query}}) __cdb_source',
     '),',
-    'interval_in_days AS (',
+    '__cdb_interval_in_days AS (',
     '    SELECT' ,
-    '        DATE_PART(\'day\', _end - _start) AS days',
-    '    FROM dates',
+    '        DATE_PART(\'day\', __cdb_end - __cdb_start) AS __cdb_days',
+    '    FROM __cdb_dates',
     '),',
-    'interval_in_hours AS (',
+    '__cdb_interval_in_hours AS (',
     '    SELECT',
-    '        days * 24 + DATE_PART(\'hour\', _end - _start) AS hours',
-    '    FROM interval_in_days, dates',
+    '        __cdb_days * 24 + DATE_PART(\'hour\', __cdb_end - __cdb_start) AS __cdb_hours',
+    '    FROM __cdb_interval_in_days, __cdb_dates',
     '),',
-    'interval_in_minutes AS (',
+    '__cdb_interval_in_minutes AS (',
     '    SELECT',
-    '        hours * 60 + DATE_PART(\'minute\', _end - _start) AS minutes',
-    '    FROM interval_in_hours, dates',
+    '        __cdb_hours * 60 + DATE_PART(\'minute\', __cdb_end - __cdb_start) AS __cdb_minutes',
+    '    FROM __cdb_interval_in_hours, __cdb_dates',
     '),',
-    'interval_in_seconds AS (',
+    '__cdb_interval_in_seconds AS (',
     '    SELECT',
-    '        minutes * 60 + DATE_PART(\'second\', _end - _start) AS seconds',
-    '    FROM interval_in_minutes, dates',
+    '        __cdb_minutes * 60 + DATE_PART(\'second\', __cdb_end - __cdb_start) AS __cdb_seconds',
+    '    FROM __cdb_interval_in_minutes, __cdb_dates',
     ')',
     'SELECT',
-    '    ROUND(days / 365) AS year,',
-    '    ROUND(days / 90) AS quarter,',
-    '    ROUND(days / 30) AS month,',
-    '    ROUND(days / 7) AS week,',
-    '    days AS day,',
-    '    hours AS hour,',
-    '    minutes AS minute,',
-    '    seconds AS second',
-    'FROM interval_in_days, interval_in_hours, interval_in_minutes, interval_in_seconds'
+    '    ROUND(__cdb_days / 365) AS year,',
+    '    ROUND(__cdb_days / 90) AS quarter,',
+    '    ROUND(__cdb_days / 30) AS month,',
+    '    ROUND(__cdb_days / 7) AS week,',
+    '    __cdb_days AS day,',
+    '    __cdb_hours AS hour,',
+    '    __cdb_minutes AS minute,',
+    '    __cdb_seconds AS second',
+    'FROM __cdb_interval_in_days, __cdb_interval_in_hours, __cdb_interval_in_minutes, __cdb_interval_in_seconds'
 ].join('\n'));
 
 var MAX_INTERVAL_VALUE = 366;