Don't return nil on result not supported methods

Author: TrueCarry

result.go

@@ -1,8 +1,16 @@
 package clickhouse
 
-import "errors"
+import (
+	"fmt"
+)
 
 type result struct{}
 
-func (*result) LastInsertId() (int64, error) { return 0, errors.New("LastInsertId is not supported") }
-func (*result) RowsAffected() (int64, error) { return 0, errors.New("RowsAffected is not supported") }
+func (*result) LastInsertId() (int64, error) {
+	fmt.Printf("[NOTSUPPORTED] LastInsertId is not supported")
+	return 0, nil
+}
+func (*result) RowsAffected() (int64, error) {
+	fmt.Printf("[NOTSUPPORTED] RowsAffected is not supported")
+	return 0, nil
+}