From 9922312e08cfb83aef1050937fc16a2ceb428c1e Mon Sep 17 00:00:00 2001
From: Gerhard Gruber <gerhard.gruber@documatrix.com>
Date: Thu, 21 Oct 2021 17:39:54 +0200
Subject: [PATCH] One more situation with empty in arrays

---
 expression_ext.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/expression_ext.go b/expression_ext.go
index 54b1cb4d..137b1b4a 100644
--- a/expression_ext.go
+++ b/expression_ext.go
@@ -346,6 +346,15 @@ func (e *expr) in(operator string, values ...interface{}) *expr {
 	if len(values) == 1 {
 		s := reflect.ValueOf(values[0])
 		if s.Kind() == reflect.Slice {
+			if s.Len() == 0 {
+				if operator == "" {
+					e.expr = "1 = 0"
+					return e
+				} else {
+					e.expr = "1 = 1"
+					return e
+				}
+			}
 			vals := make([]interface{}, s.Len())
 			qm := make([]string, s.Len())