parser: truncate keywords.go when re-creating it (#49634)

ref #48801
pingcap · Dec 21, 2023 · f1ff450 · f1ff450
1 parent 7f9559c
commit f1ff450
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/pkg/parser/generate_keyword/genkeyword.go b/pkg/parser/generate_keyword/genkeyword.go
@@ -97,6 +97,10 @@ func main() {
 	if err != nil {
 		log.Fatalf("Failed to create keywords.go: %s", err)
 	}
+	err = keywordsFile.Truncate(0)
+	if err != nil {
+		log.Fatalf("Failed to create keywords.go: %s", err)
+	}
 	_, err = keywordsFile.WriteString(fileStart)
 	if err != nil {
 		log.Fatalf("Failed to write fileStart to keywords.go: %s", err)