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Add support for row_number() #4

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hongooi73 opened this issue May 23, 2019 · 1 comment

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hongooi73 commented May 23, 2019

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alexkyllo commented Aug 1, 2019 •

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There's a good workaround for this, you can express it using the Kusto syntax within a mutate expression

mutate(rn = row_number(1, prev(group) != group))

gets translated to

| extend ['rn'] = row_number(1, prev(['group']) != ['group'])

You just have to make sure to do this after an arrange call because row_number in Kusto only works on sorted data.

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