From 5fecbbd4e28d4ed8dc3fa69902359cf57ac0253b Mon Sep 17 00:00:00 2001
From: Gerhard Gruber <gerhard.gruber@documatrix.com>
Date: Thu, 21 Oct 2021 17:33:34 +0200
Subject: [PATCH] in and not in support empty arrays

---
 expression_ext.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/expression_ext.go b/expression_ext.go
index cafd87e7..54b1cb4d 100644
--- a/expression_ext.go
+++ b/expression_ext.go
@@ -376,10 +376,20 @@ func (e *expr) in(operator string, values ...interface{}) *expr {
 }
 
 func (e *expr) In(values ...interface{}) *expr {
+	if len(values) == 0 {
+		e.expr = "1 = 0"
+		return e
+	}
+
 	return e.in("", values...)
 }
 
 func (e *expr) NotIn(values ...interface{}) *expr {
+	if len(values) == 0 {
+		e.expr = "1 = 1"
+		return e
+	}
+
 	return e.in(" NOT", values...)
 }