feat(rule): add detection for Event SQL in rule checks

- Enhance the checkEventScheduler rule to also detect Event SQL statements
- Implement a new IsEventSQL utility function for identifying Event-related SQL

Author: BugsGuru

sqle/driver/mysql/rule/rule.go

@@ -5434,7 +5434,8 @@ func avoidSet(input *RuleHandlerInput) error {
 }
 
 func checkEventScheduler(input *RuleHandlerInput) error {
-	if utils.IsOpenEventScheduler(input.Node.Text()) {
+	if utils.IsOpenEventScheduler(input.Node.Text()) ||
+		utils.IsEventSQL(input.Node.Text()) {
 		addResult(input.Res, input.Rule, input.Rule.Name)
 	}
 	return nil

sqle/utils/util.go

@@ -213,3 +213,18 @@ func IsOpenEventScheduler(sql string) bool {
 	reg := regexp.MustCompile(pattern)
 	return reg.MatchString(strings.TrimSpace(sql))
 }
+
+// TODO: 暂时使用正则表达式匹配event，后续会修改语法树进行匹配event
+func IsEventSQL(sql string) bool {
+	createPattern := `^CREATE\s+(DEFINER\s?=.+?)?EVENT`
+	createRe := regexp.MustCompile(createPattern)
+	alterPattern := `^ALTER\s+(DEFINER\s?=.+?)?EVENT`
+	alterRe := regexp.MustCompile(alterPattern)
+
+	sql = strings.ToUpper(strings.TrimSpace(sql))
+	if createRe.MatchString(sql) {
+		return true
+	} else {
+		return alterRe.MatchString(sql)
+	}
+}