cat query string at VALUES if is set to not log values in query

pkg/gorm_tracing/middleware.go

@@ -187,18 +187,17 @@ func (p *gormPlugin) after() gormHookFunc {
 			attrs = append(attrs, sys)
 		}
 
-		vars := tx.Statement.Vars
+		query := ""
 		if p.excludeQueryVars {
-			// Replace query variables with '?' to mask them
-			vars = make([]interface{}, len(tx.Statement.Vars))
-
-			for i := 0; i < len(vars); i++ {
-				vars[i] = "?"
+			// cat query at VALUES and add tree dots
+			pos := strings.Index(tx.Statement.SQL.String(), "VALUES (")
+			if pos != -1 {
+				query = tx.Statement.SQL.String()[:pos+len("VALUES ")] + "   ..."
+			} else {
+				query = tx.Statement.SQL.String()
 			}
 		}
 
-		query := tx.Dialector.Explain(tx.Statement.SQL.String(), vars...)
-
 		attrs = append(attrs, semconv.DBStatementKey.String(p.formatQuery(query)))
 		if tx.Statement.Table != "" {
 			attrs = append(attrs, semconv.DBSQLTableKey.String(tx.Statement.Table))