Filter out special float values before categorizing them

lib/cartodb/models/dataview/overviews/aggregation.js

@@ -60,7 +60,7 @@ var categoriesSummaryCountQueryTpl = dot.template([
     '  SELECT count(1) AS categories_count',
     '  FROM (',
     '    SELECT {{=it._column}} AS category',
-    '    FROM ({{=it._query}}) _cdb_categories',
+    '    FROM filtered_source',
     '    GROUP BY {{=it._column}}',
     '  ) _cdb_categories_count',
     ')'
@@ -82,7 +82,7 @@ var rankedAggregationQueryTpl = dot.template([
 var aggregationQueryTpl = dot.template([
     'SELECT CAST({{=it._column}} AS text) AS category, {{=it._aggregation}} AS value, false as agg,',
     '  nulls_count, min_val, max_val, count, categories_count, nans_count, infinities_count',
-    'FROM ({{=it._query}}) _cdb_aggregation_all, summary, categories_summary_min_max, categories_summary_count',
+    'FROM filtered_source, summary, categories_summary_min_max, categories_summary_count',
     'GROUP BY category, nulls_count, min_val, max_val, count, categories_count, nans_count, infinities_count',
     'ORDER BY value DESC'
 ].join('\n'));