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Bug
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Resolution: Done
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Critical
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None
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None
When both DISTINCT and ORDER BY clause are specified in a STRING_AGG function, the result of the aggregate function is not correctly sorted.
For example, running the following query:
select string_agg(col1, ',' ORDER BY col1 DESC) as orderByDesc, string_agg(col1, ',' ORDER BY col1 ASC) as orderByAsc, string_agg(DISTINCT col1, ',' ORDER BY col1 DESC) as distinctOrderByDesc, string_agg(DISTINCT col1, ',' ORDER BY col1 ASC) as distinctOrderByAsc from ( SELECT 'b' as col1 UNION ALL SELECT 'c' as col1 UNION ALL SELECT 'a' as col1 UNION ALL SELECT 'c' as col1 ) x
the result is:
| orderByDesc | orderByAsc | distinctOrderByDesc | distinctOrderByAsc |
|---|---|---|---|
| c,c,b,a | a,b,c,c | a,b,c | a,b,c |
