Fix unit of measure for lastUpdated info extraction

lib/cartodb/server_options.js

@@ -83,6 +83,10 @@ module.exports = function(){
       });
     };
 
+    //
+    // Invoke callback with number of milliseconds since
+    // last update in any of the given tables
+    //
     me.findLastUpdated = function (username, api_key, tableNames, callback) {
       var sql = 'SELECT EXTRACT(EPOCH FROM max(updated_at)) as max FROM CDB_TableMetadata m WHERE m.tabname::name = any (\'{'
         + tableNames.join(',') + '}\')';
@@ -99,7 +103,7 @@ module.exports = function(){
           if(rows.length !== 0) {
             last_updated = rows[0].max || 0;
           }
-          callback(null, last_updated);
+          callback(null, last_updated*1000);
       });
     };
 

test/support/SQLAPIEmu.js

@@ -14,7 +14,7 @@ var o = function(port, cb) {
         } else if ( query.q.match('EPOCH.* as max') ) {
           // This is the structure of the known query sent by tiler
           var row = {
-            'max': 1234567890123
+            'max': 1234567890.123
           };
           res.write(JSON.stringify({rows: [ row ]}));
         } else {