zhao-en commented on issue #18207:
URL:
https://github.com/apache/shardingsphere/issues/18207#issuecomment-1211713366
> Can you give me a simple runnable demo to investigate this issue,thank you.
when the 'distinct' and 'group by' are used in one sql , the 'group by' will
be replace by 'order by ' after creating ShardingSphere-SQL will
case :
Logic SQL: SELECT COUNT(DISTINCT
DATE_FORMAT(LEFT(b.create_date,13),'%Y-%m-%d %H')) hourNum, date
FROM table_name b
where (b.p_id,b.d_id) IN
(
(?, ?)
)
and b.create_date >= ?
AND b.create_date < ?
GROUP BY date,d_id
Actual SQL: SELECT COUNT(DISTINCT
DATE_FORMAT(LEFT(b.create_date,13),'%Y-%m-%d %H')) hourNum, date
FROM table_name_1 b
where (b.p_id,b.d_id) IN
(
(?, ?)
)
and b.create_date >= ?
AND b.create_date < ?
ORDER BY DATE ASC,deviceId ASC
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