LemonLiTree commented on issue #19478:
URL: https://github.com/apache/doris/issues/19478#issuecomment-1541406330
try:
`select GROUP_CONCAT(DISTINCT a)
,GROUP_CONCAT(DISTINCT b)
from (
select '1' a
,'1' b
union all
select '1' a
,'1' b
union all
select '2' a
,'2' b
) r;
`
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