diff --git a/internal/statements/query.go b/internal/statements/query.go
index 69f48e73..76946cbd 100644
--- a/internal/statements/query.go
+++ b/internal/statements/query.go
@@ -247,6 +247,9 @@ func (statement *Statement) genSelectSQL(columnStr string, needLimit, needOrderB
 			top = fmt.Sprintf("TOP %d ", LimitNValue)
 		}
 		if statement.Start > 0 {
+			if statement.RefTable == nil {
+				return "", nil, errors.New("Unsupported query limit without reference table")
+			}
 			var column string
 			if len(statement.RefTable.PKColumns()) == 0 {
 				for _, index := range statement.RefTable.Indexes {