[R-Forge #1984] Functional Queries

[arunsrinivasan]

Submitted by: Yike Lu; Assigned to: Nobody; R-Forge link

Add a function, perhaps dtquery=function(DT, ...) DT[...]

I just checked, and this syntax indeed works (it was a very easy function program). This would allow higher order abstractions as part of the standard implementation.

[jangorecki]

It could be simply done by

dtquery = data.table:::`[.data.table`

[MichaelChirico]

I'm not sure there's any demand for this?

Seems most suited to %>% chains, so perhaps it could be added in dtplyr instead?

[jangorecki]

something related just spotted in the wild: https://stackoverflow.com/a/58652478/2490497

[dcaseykc]

Having an exported version of [.data.table (via dtquery) would be helpful for attempts to extend data.table without running afoul of warnings about using ::: in packages.

[avimallu]

@jangorecki, this will be closed with #4304, or is it completely different? This SO examples linked seem to point to it serving the same purpose.

[jangorecki]

not really

[MichaelChirico]

IINM this is duplicate of #4872 which now has much more traffic; closing this one