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Sharla Gelfand commented on ARROW-10668: ---------------------------------------- i don't, sorry! just experience with using `filter` itself within packages. > [R] Filtering does not work with .data pronoun > ---------------------------------------------- > > Key: ARROW-10668 > URL: https://issues.apache.org/jira/browse/ARROW-10668 > Project: Apache Arrow > Issue Type: Bug > Components: R > Affects Versions: 2.0.0 > Reporter: Sharla Gelfand > Priority: Minor > Fix For: 3.0.0 > > > Filtering while using the `.data` pronoun does not work properly on arrow > datasets - presumably because `.data` is meaningful for something else in > arrow? `.data` doesn't always need to be used when using dplyr verbs > interactively, but it is pretty much a requirement when writing packages that > use the verbs, to [avoid an R CMD check > note.|https://rlang.r-lib.org/reference/tidyeval-data.html] > Curious on thoughts/workarounds for this! Thank you! > {code:r} > library(dplyr) > library(arrow) > # Filtering using .data pronoun works on regular objects > mtcars %>% > filter(.data$cyl == 6) > #> mpg cyl disp hp drat wt qsec vs am gear carb > #> Mazda RX4 21.0 6 160.0 110 3.90 2.620 16.46 0 1 4 4 > #> Mazda RX4 Wag 21.0 6 160.0 110 3.90 2.875 17.02 0 1 4 4 > #> Hornet 4 Drive 21.4 6 258.0 110 3.08 3.215 19.44 1 0 3 1 > #> Valiant 18.1 6 225.0 105 2.76 3.460 20.22 1 0 3 1 > #> Merc 280 19.2 6 167.6 123 3.92 3.440 18.30 1 0 4 4 > #> Merc 280C 17.8 6 167.6 123 3.92 3.440 18.90 1 0 4 4 > #> Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 0 1 5 6 > # But it does not seem to on arrow data sets > tmp <- tempfile() > write_dataset(mtcars, tmp, format = "parquet") > mtcars_arrow <- open_dataset(tmp) > # Filtering works fine without the pronoun > mtcars_arrow %>% > filter(cyl == 6) %>% > collect() > #> mpg cyl disp hp drat wt qsec vs am gear carb > #> 1 21.0 6 160.0 110 3.90 2.620 16.46 0 1 4 4 > #> 2 21.0 6 160.0 110 3.90 2.875 17.02 0 1 4 4 > #> 3 21.4 6 258.0 110 3.08 3.215 19.44 1 0 3 1 > #> 4 18.1 6 225.0 105 2.76 3.460 20.22 1 0 3 1 > #> 5 19.2 6 167.6 123 3.92 3.440 18.30 1 0 4 4 > #> 6 17.8 6 167.6 123 3.92 3.440 18.90 1 0 4 4 > #> 7 19.7 6 145.0 175 3.62 2.770 15.50 0 1 5 6 > # Using the .data pronoun, does not return any data > mtcars_arrow %>% > filter(.data$cyl == 6) %>% > collect() > #> [1] mpg cyl disp hp drat wt qsec vs am gear carb > #> <0 rows> (or 0-length row.names) > {code} -- This message was sent by Atlassian Jira (v8.3.4#803005)