Merge pull request #856 from CartoDB/841-the_geom_webmercator-type

Check the type of the_geom_webmercator for aggregation

lib/cartodb/models/aggregation/aggregation-mapconfig.js

@@ -47,6 +47,10 @@ module.exports = class AggregationMapConfig extends MapConfig {
         return AggregationMapConfig.SUPPORTED_GEOMETRY_TYPES.includes(geometryType);
     }
 
+    static  getAggregationGeometryColumn() {
+        return aggregationQuery.GEOMETRY_COLUMN;
+    }
+
     constructor (user, config, connection, datasource) {
         super(config, datasource);
 

lib/cartodb/models/aggregation/aggregation-query.js

@@ -250,3 +250,4 @@ const aggregationQueryTemplates = {
 };
 
 module.exports.SUPPORTED_PLACEMENTS = Object.keys(aggregationQueryTemplates);
+module.exports.GEOMETRY_COLUMN = 'the_geom_webmercator';

lib/cartodb/models/mapconfig/adapter/aggregation-mapconfig-adapter.js

@@ -122,7 +122,8 @@ module.exports = class AggregationMapConfigAdapter {
         }
 
         const aggregationMetadata = queryUtils.getAggregationMetadata({
-            query: layer.options.sql_raw ? layer.options.sql_raw : layer.options.sql
+            query: layer.options.sql_raw ? layer.options.sql_raw : layer.options.sql,
+            geometryColumn: AggregationMapConfig.getAggregationGeometryColumn()
         });
 
         connection.query(aggregationMetadata, (err, res) => {

lib/cartodb/utils/query-utils.js

@@ -32,8 +32,8 @@ module.exports.getAggregationMetadata = ctx => `
         ${getQueryRowEstimation(ctx.query)}
     ),
     geometryType AS (
-        SELECT ST_GeometryType(the_geom) as geom_type
+        SELECT ST_GeometryType(${ctx.geometryColumn}) as geom_type
-        FROM (${ctx.query}) AS __cdb_query WHERE the_geom IS NOT NULL LIMIT 1
+        FROM (${ctx.query}) AS __cdb_query WHERE ${ctx.geometryColumn} IS NOT NULL LIMIT 1
     )
     SELECT
         rows AS count,

test/acceptance/aggregation.js

@@ -92,6 +92,14 @@ describe('aggregation', function () {
         }
     `;
 
+    const POINTS_SQL_ONLY_WEBMERCATOR = `
+    select
+        x + 4 as cartodb_id,
+        st_transform(st_setsrid(st_makepoint(x*10, x*10), 4326), 3857) as the_geom_webmercator,
+        x as value
+    from generate_series(-3, 3) x
+    `;
+
     function createVectorMapConfig (layers = [
         {
             type: 'cartodb',
@@ -1401,6 +1409,35 @@ describe('aggregation', function () {
                     });
                 });
             });
+
+            it('should only require the_geom_webmercator for aggregation', function (done) {
+                this.mapConfig = createVectorMapConfig([
+                    {
+                        type: 'cartodb',
+                        options: {
+                            sql: POINTS_SQL_ONLY_WEBMERCATOR,
+                            aggregation: {
+                                threshold: 1
+                            }
+                        }
+                    }
+                ]);
+                this.testClient = new TestClient(this.mapConfig);
+
+                this.testClient.getLayergroup((err, body) => {
+                    if (err) {
+                        return done(err);
+                    }
+
+                    assert.equal(typeof body.metadata, 'object');
+                    assert.ok(Array.isArray(body.metadata.layers));
+
+                    body.metadata.layers.forEach(layer => assert.ok(layer.meta.aggregation.mvt));
+                    body.metadata.layers.forEach(layer => assert.ok(!layer.meta.aggregation.png));
+
+                    done();
+                });
+            });
         });
     });
 });