Mycatはピットエラー1064（HY000）を踏んでいます
問題を再現する
Mycatが本番環境に新しく構築されました、クエリエラー：
mysql> select distinct o.* from
-> ( select goods_id offer_id, name offer_name, sn offer_code,simple_name,mktPrice,price,state,
-> thumbnail,type_id offer_type, marketing_begin_time,marketing_end_time,
-> t.tax
-> from prod_goods t
-> where 1 = 1
-> and t.marketing_begin_time <= sysdate()
-> and t.marketing_end_time > sysdate())o
-> ;
ERROR 1064 (HY000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '*
LIMIT 100000000' at line 6
mysqlに直接接続している間、クエリは通常mycatなしで結果を返すことができます。
解決策
mycatはサポートしていませんselect distinct *ので、*具体的な列名を置き換えます。
mysql> select distinct offer_id,offer_name,offer_code,simple_name,mktPrice,price,state,thumbnail,offer_type,marketing_begin_time,marketing_end_time,tax from
-> ( select goods_id offer_id, name offer_name, sn offer_code,simple_name,mktPrice,price,state,
-> thumbnail,type_id offer_type, marketing_begin_time,marketing_end_time,
-> t.tax
-> from prod_goods t
-> where 1 = 1
-> and t.marketing_begin_time <= sysdate()
-> and t.marketing_end_time > sysdate())o
-> ;
+---------------------+-------------------------------+------------+-------------------------------+----------+-------+-------+-----------+------------+----------------------+---------------------+------+
| offer_id | offer_name | offer_code | simple_name | mktPrice | price | state | thumbnail | offer_type | marketing_begin_time | marketing_end_time | tax |
+---------------------+-------------------------------+------------+-------------------------------+----------+-------+-------+-----------+------------+----------------------+---------------------+------+
| 1162487289697533953 | a | 12344 | a | 10000 | 1 | C | NULL | 6 | 2019-08-17 06:12:22 | 2019-09-16 06:12:22 | NULL |
| 1162487833723928578 | b | NULL | b | 0 | 0 | C | NULL | 8 | 2019-08-17 06:14:42 | 2019-09-16 06:14:42 | NULL |
| 1162488027156840449 | c | NULL | c | 0 | 0 | C | NULL | 6 | 2019-08-17 06:15:28 | 2019-09-16 06:15:28 | NULL |
| 1162488158606327810 | d | NULL | d | 0 | 0 | C | NULL | 6 | 2019-08-17 06:15:59 | 2019-09-16 06:15:59 | NULL |
| 1162488323824156674 | e | NULL | e | 0 | 0 | C | NULL | 6 | 2019-08-17 06:16:38 | 2019-09-16 06:16:38 | NULL |
+---------------------+-------------------------------+------------+-------------------------------+----------+-------+-------+-----------+------------+----------------------+---------------------+------+
5 rows in set (0.00 sec)
スクリプトは正常に実行されます
