From 31a4972478058da20471164adecda74e032630fe Mon Sep 17 00:00:00 2001
From: Bill <sunyinqi0508@gmail.com>
Date: Fri, 4 Nov 2022 16:29:20 +0800
Subject: [PATCH] bug fixes

---
 reconstruct/expr.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/reconstruct/expr.py b/reconstruct/expr.py
index e22a4ed..9e16d61 100644
--- a/reconstruct/expr.py
+++ b/reconstruct/expr.py
@@ -90,7 +90,9 @@ class expr(ast_node):
         self.udf_map = parent.context.udf_map
         self.func_maps = {**builtin_func, **self.udf_map, **user_module_func}
         self.operators = {**builtin_operators, **self.udf_map, **user_module_func}
-        self.ext_aggfuncs = ['sum', 'avg', 'count', 'min', 'max', 'last', 'first', 'prev', 'next']
+        self.ext_aggfuncs = ['sum', 'avg', 'count', 'min', 'max', 
+                             'last', 'first', 'prev', 'next', 'var', 
+                             'stddev']
         
     def produce(self, node):
         from engine.utils import enlist