Adjusting First and Last order_by to use Sort_Column_Selector #3517
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radeusgd
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Jun 9, 2022
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Generally looks good, I'm just worried about violating the type signature of generate_expression.
At least we need to update the type signature to reflect what it really can return, as otherwise it may be misleading (which is worse than having no signature at all).
However, ideally, I'd consider if we can brainstorm some solution that will be safer for future changes; ideally making the signature of this function more uniform.
distribution/lib/Standard/Table/0.0.0-dev/src/Internal/Aggregate_Column_Helper.enso
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distribution/lib/Standard/Table/0.0.0-dev/src/Internal/Aggregate_Column_Helper.enso
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distribution/lib/Standard/Database/0.0.0-dev/src/Data/Internal/Base_Generator.enso
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…te_Column_Helper.enso Co-authored-by: Radosław Waśko <radoslaw.wasko@enso.org>
radeusgd
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Jun 9, 2022
radeusgd
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Jun 9, 2022
| grouped = table.aggregate [First "TextWithNothing" (order_by = Sort_Column_Selector.By_Name [Sort_Column.Name "Value" Sort_Direction.Descending, Sort_Column.Name "Flag"]), Last "ValueWithNothing" (order_by = Sort_Column_Selector.By_Name [Sort_Column.Name "Value" Sort_Direction.Descending])] | ||
| grouped = table.aggregate [First "TextWithNothing" (order_by = Sort_Column_Selector.By_Name [Sort_Column.Name "Value" Sort_Direction.Descending, Sort_Column.Name "Code"]), Last "ValueWithNothing" (order_by = Sort_Column_Selector.By_Name [Sort_Column.Name "Value" Sort_Direction.Descending])] |
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Don't you think it may be worth it to have this paired test as I suggested?
hubertp
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Jun 10, 2022
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