diff --git a/dbstruct/zone_third_partner.go b/dbstruct/zone_third_partner.go
index ea392727..3e5cebcb 100644
--- a/dbstruct/zone_third_partner.go
+++ b/dbstruct/zone_third_partner.go
@@ -31,10 +31,3 @@ func (p *ZoneThirdPartner) GetSharingRatio() float64 {
 	}
 	return 0
 }
-
-func (p *ZoneThirdPartner) GetZid() int64 {
-	if p != nil && p.Zid != nil {
-		return *p.Zid
-	}
-	return 0
-}