diff --git a/parser/lexer.go b/parser/lexer.go
index 1727b5718b6ae..5a6899af3adbf 100644
--- a/parser/lexer.go
+++ b/parser/lexer.go
@@ -98,6 +98,7 @@ func (s *Scanner) reset(sql string) {
 	s.stmtStartPos = 0
 	s.inBangComment = false
 	s.lastKeyword = 0
+	s.identifierDot = false
 }
 
 func (s *Scanner) stmtText() string {
diff --git a/parser/parser_test.go b/parser/parser_test.go
index 5e9afe317f847..6ad91c70d9c7e 100644
--- a/parser/parser_test.go
+++ b/parser/parser_test.go
@@ -6492,3 +6492,15 @@ func TestCharsetIntroducer(t *testing.T) {
 	_, _, err = p.Parse("select _gbk 0b101001;", "", "")
 	require.EqualError(t, err, "[ddl:1115]Unsupported character introducer: 'gbk'")
 }
+
+func TestIssue45898(t *testing.T) {
+	p := parser.New()
+	p.ParseSQL("a.")
+	stmts, _, err := p.ParseSQL("select count(1) from t")
+	require.NoError(t, err)
+	var sb strings.Builder
+	restoreCtx := NewRestoreCtx(DefaultRestoreFlags, &sb)
+	sb.Reset()
+	stmts[0].Restore(restoreCtx)
+	require.Equal(t, "SELECT COUNT(1) FROM `t`", sb.String())
+}