From 96758ec560b4ff9c03edecb84b8808edd7086ee9 Mon Sep 17 00:00:00 2001
From: Daniel Hammerschmid <daniel.hammerschmid@documatrix.com>
Date: Fri, 30 Oct 2020 09:31:08 +0100
Subject: [PATCH] Added func SumExpr to expr

---
 expression_ext.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/expression_ext.go b/expression_ext.go
index ec8170d2..c42ca7c9 100644
--- a/expression_ext.go
+++ b/expression_ext.go
@@ -240,6 +240,11 @@ func (e *expr) Sum() string {
 	return "SUM(" + e.expr + ")"
 }
 
+func (e *expr) SumExpr() *expr {
+	e.expr = "SUM(" + e.expr + ")"
+	return e
+}
+
 func (e *expr) Max() string {
 	return "MAX(" + e.expr + ")"
 }