From 46f15b8e3c016b20cd54b7af686db208a8957503 Mon Sep 17 00:00:00 2001
From: Leufolium <Caeruscaemon@outlook.com>
Date: Tue, 3 Sep 2024 16:09:53 +0800
Subject: [PATCH] by Robin at 20240903 scale = 1

---
 bizcommon/util/util.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/bizcommon/util/util.go b/bizcommon/util/util.go
index ae070e36..9cc60e4c 100644
--- a/bizcommon/util/util.go
+++ b/bizcommon/util/util.go
@@ -412,6 +412,9 @@ func CreateGaussDecayFunction(name string, filter *Int64Filter, refFilter *Int64
 	origin := float64(lb+ub) / 2
 	offset := float64(-lb+ub) / 2
 	scale := (origin - offset) * refFilter.ScaleCoeff
+	if scale == 0 {
+		scale = 1
+	}
 	return elastic.NewGaussDecayFunction().FieldName(name).Origin(origin).Offset(offset).Scale(scale).Decay(refFilter.Decay).Weight(refFilter.Weight)
 }