Added unique index to DBAmendment

models/amendment.go

@@ -17,8 +17,8 @@ import "time"
 //	Indexes: Id, ConversationId, RequestedAt
 type DBAmendment struct {
 	Id              int    `gorm:"primaryKey;autoIncrement"`
-	ConversationId  string `gorm:"index"`
+	ConversationId  string `gorm:"uniqueIndex:idx_amendment_conv_column"`
-	AmendmentColumn string
+	AmendmentColumn string `gorm:"uniqueIndex:idx_amendment_conv_column"`
 	AmendmentValue  string
 	Requestor       string
 	RequestedAt     time.Time `gorm:"index"`