Stop setting global variable 'columnTypes' on error

lib/dialects/sqlite/query.js

@@ -35,8 +35,13 @@ module.exports = (function() {
         self.database[getDatabaseMethod.call(self)](self.sql, function(err, results) {
         self.database[getDatabaseMethod.call(self)](self.sql, function(err, results) {
           // allow clients to listen to sql to do their own logging or whatnot
           // allow clients to listen to sql to do their own logging or whatnot
           self.emit('sql', self.sql)
           self.emit('sql', self.sql)
-          this.columnTypes = columnTypes;
-          err ? onFailure.call(self, err) : onSuccess.call(self, results, this)
+
+          if (err) {
+            onFailure.call(self, err)
+          } else {
+            this.columnTypes = columnTypes
+            onSuccess.call(self, results, this)
+          }
         })
         })
       };
       };