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Save .Last.updated after each := #1885

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mattdowle opened this issue Oct 19, 2016 · 0 comments · Fixed by #3460
Closed

Save .Last.updated after each := #1885

mattdowle opened this issue Oct 19, 2016 · 0 comments · Fixed by #3460
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@jangorecki
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feature request
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1.12.4

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@mattdowle
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@mattdowle mattdowle commented Oct 19, 2016

Similar to base R's .Last.value, data.table could save .Last.updated holding the number of rows updated by the last :=. This could be used afterwards in production code to check that if row updates are expected then they occur and for reporting and logging.
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.Last.updated value after :=, closes #1885 Rdatatable/data.table
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@mattdowle @jangorecki