fix: fixed distinct remainder issue

Author: titanism

lib/dialects/base/blocks.js

@@ -82,7 +82,13 @@ function isUndefined(value) {
 }
 
 module.exports = function (dialect) {
-  dialect.blocks.add('distinct', () => 'distinct');
+  dialect.blocks.add('distinct', (parameters) => {
+    if (parameters.distinct) {
+      return 'distinct';
+    }
+
+    return '';
+  });
 
   dialect.blocks.add('fields', (parameters) => {
     let fields = parameters.fields || {};