sync load forget to skip the column which is in the tidb_analyze_skip_column_types

[hawkingrei]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

CREATE TABLE `t1` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `content` text,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;

INSERT INTO `t1` (`content`) VALUES ('这是一段示例文本内容。');
analyze table t1;
set global tidb_analyze_skip_column_types=text;
select * from t1 where content="abc";

2. What did you expect to see? (Required)

no sync load to trigger

3. What did you see instead (Required)

sync load to trigger

4. What is your TiDB version? (Required)