From 26e4a052766af50efb57eca941bf8bdb1b44a12f Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Tue, 23 Oct 2018 15:50:42 +0200
Subject: [PATCH] Going green: prevent TypeError for empty tables/results

This is the intial step to fix https://github.com/CartoDB/carto-vl/issues/1049.
---
 lib/cartodb/backends/layer-stats/mapnik-layer-stats.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/cartodb/backends/layer-stats/mapnik-layer-stats.js b/lib/cartodb/backends/layer-stats/mapnik-layer-stats.js
index 67d00d90..4de960fe 100644
--- a/lib/cartodb/backends/layer-stats/mapnik-layer-stats.js
+++ b/lib/cartodb/backends/layer-stats/mapnik-layer-stats.js
@@ -71,7 +71,7 @@ function _geometryType(ctx) {
         const geometryColumn = AggregationMapConfig.getAggregationGeometryColumn();
         const sqlQuery = _getSQL(ctx, sql => queryUtils.getQueryGeometryType(sql, geometryColumn));
         return queryUtils.queryPromise(ctx.dbConnection, sqlQuery)
-            .then(res => ({ geometryType: res.rows[0].geom_type }));
+            .then(res => ({ geometryType: (res.rows[0] || {}).geom_type }));
     }
     return Promise.resolve();
 }