Superainbower edited a comment on issue #11437:
URL:
https://github.com/apache/shardingsphere/issues/11437#issuecomment-895075521
The error log is Function '{fn ifnull}' is not defined
I refer to your suggestion, but you said ss will do it, it make me confused
We need to rewrite the SQL to the following format:
SELECT order_id, {fn IFNULL(SUM(cnt), 0)} AS totoal FROM (
SELECT order_id, user_id, COUNT(1) AS cnt FROM t_order GROUP BY
order_id, user_id
) a GROUP BY order_id;
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