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@julien-pinchelimouroux
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Fixes: #3200

sort always required sorted columns which caused an unwanted column selection in the next aggregate : column <SORTED_COLUMN> must appear in the GROUP BY clause or be used in an aggregate function


To fix it, it simply checks if an aggregate is present in the following transforms


I didn't find a PRQL query where this change can be a regression. If you have something in mind, please share it! 🙏

@max-sixty
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thanks @julien-pinchelimouroux !

would you mind adding a small test?

I didn't find a PRQL query where this change can be a regression. If you have something in mind, please share it! 🙏

could we use, from #3200

prql target:sql.duckdb
from tb1
sort {c0}
aggregate {new_col = min c1}

I also see lots of snapshot files in the diff — where are those from? (sorry if I'm missing something...)

@julien-pinchelimouroux
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Hello @max-sixty !

snap files comes from the following added tests :

  • prqlc/prqlc/tests/integration/queries/sort_with_aggregation.prql
  • prqlc/prqlc/tests/integration/queries/sort_with_aggregation_and_limit.prql

They are based on the reported query in the original issue #3200

@vanillajonathan
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Maybe a note should be added to the CHANGELOG file?

@max-sixty
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ah thanks @julien-pinchelimouroux !

could we slim down the test a bit, unless we really need two full integration tests? I'd have thought this could just be a single inline test in prqlc/prqlc/tests/integration/sql.rs ?

@julien-pinchelimouroux
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Hi @max-sixty
Yes you're totally right, that do not need a full integration test :)

@max-sixty max-sixty merged commit e3cfae8 into PRQL:main Jul 7, 2025
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@max-sixty
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great! thank you @julien-pinchelimouroux

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columns not in aggregate function and group by

3 participants