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Why not .data in sql filter?
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| library(tidyverse) | |
| # local df works as expected with or without .data | |
| mtcars %>% select(mpg) %>% filter(mpg > 33) | |
| # mpg | |
| # 1 33.9 | |
| mtcars %>% select(.data$mpg) %>% filter(.data$mpg > 33) | |
| # mpg | |
| # 1 33.9 | |
| con = DBI::dbConnect(RSQLite::SQLite(), path = ":memory:") | |
| copy_to(con, mtcars, "carsql", temporary=F) | |
| # sql works as expected without .data | |
| tbl(con, "carsql") %>% select(mpg) %>% filter(mpg > 33) | |
| # # Source: lazy query [?? x 1] | |
| # # Database: sqlite 3.19.3 [] | |
| # mpg | |
| # <dbl> | |
| # 1 33.9 | |
| # sql select works as expected with .data | |
| tbl(con, "carsql") %>% select(.data$mpg) %>% filter(mpg > 33) | |
| # # Source: lazy query [?? x 1] | |
| # # Database: sqlite 3.19.3 [] | |
| # mpg | |
| # <dbl> | |
| # 1 33.9 | |
| # sql filter does not work with .data | |
| tbl(con, "carsql") %>% select(.data$mpg) %>% filter(.data$mpg > 33) | |
| # Error in eval_bare(call, env) : object '.data' not found | |
Author
infotroph
commented
Jan 22, 2018
tbl(con, "carsql") %>% select(.data$mpg) %>% filter(as.name("mpg") > 33)
# Error in rsqlite_send_query(conn@ptr, statement) : near "AS": syntax error
tbl(con, "carsql") %>% select(.data$mpg) %>% filter(base::as.name("mpg") > 33)
# # Source: lazy query [?? x 1]
# # Database: sqlite 3.19.3 []
# mpg
# <dbl>
# 1 33.9
Behavior doesn't change when I switch to dev versions of Tidyverse packages.
library(tidyverse)
# local df works as expected with or without .data
mtcars %>% select(mpg) %>% filter(mpg > 33)
#> mpg
#> 1 33.9
mtcars %>% select(.data$mpg) %>% filter(.data$mpg > 33)
#> mpg
#> 1 33.9
con = DBI::dbConnect(RSQLite::SQLite(), path = ":memory:")
copy_to(con, mtcars, "carsql", temporary=F)
# sql works as expected without .data
tbl(con, "carsql") %>% select(mpg) %>% filter(mpg > 33)
#> # Source: lazy query [?? x 1]
#> # Database: sqlite 3.19.3 []
#> mpg
#> <dbl>
#> 1 33.9
# sql select works as expected with .data
tbl(con, "carsql") %>% select(.data$mpg) %>% filter(mpg > 33)
#> # Source: lazy query [?? x 1]
#> # Database: sqlite 3.19.3 []
#> mpg
#> <dbl>
#> 1 33.9
# sql filter does not work with .data
tbl(con, "carsql") %>% select(.data$mpg) %>% filter(.data$mpg > 33)
#> Error: Column `mpg` not found in `.data`
devtools::session_info()
#> Session info -------------------------------------------------------------
#> setting value
#> version R version 3.4.3 (2017-11-30)
#> system x86_64, darwin15.6.0
#> ui X11
#> language (EN)
#> collate en_US.UTF-8
#> tz Europe/Amsterdam
#> date 2018-01-28
#> Packages -----------------------------------------------------------------
#> package * version date source
#> assertthat 0.2.0 2017-04-11 CRAN (R 3.4.0)
#> backports 1.1.2 2017-12-13 CRAN (R 3.4.3)
#> base * 3.4.3 2017-12-07 local
#> bindr 0.1 2016-11-13 CRAN (R 3.4.0)
#> bindrcpp * 0.2 2017-06-17 CRAN (R 3.4.0)
#> bit 1.1-12 2014-04-09 CRAN (R 3.4.0)
#> bit64 0.9-7 2017-05-08 CRAN (R 3.4.0)
#> blob 1.1.0 2017-06-17 CRAN (R 3.4.0)
#> broom 0.4.2 2018-01-28 Github (tidyverse/broom@4d0c83a)
#> cellranger 1.1.0 2016-07-27 CRAN (R 3.4.0)
#> cli 1.0.0 2017-11-05 CRAN (R 3.4.2)
#> colorspace 1.3-2 2016-12-14 CRAN (R 3.4.0)
#> compiler 3.4.3 2017-12-07 local
#> crayon 1.3.4 2017-09-16 CRAN (R 3.4.1)
#> datasets * 3.4.3 2017-12-07 local
#> DBI 0.7 2017-06-18 cran (@0.7)
#> dbplyr 1.2.0 2018-01-28 Github (tidyverse/dbplyr@ea093ca)
#> devtools 1.13.4 2017-11-09 CRAN (R 3.4.2)
#> digest 0.6.14 2018-01-14 CRAN (R 3.4.3)
#> dplyr * 0.7.4.9000 2018-01-28 Github (tidyverse/dplyr@3f91e1e)
#> evaluate 0.10.1 2017-06-24 CRAN (R 3.4.1)
#> forcats * 0.2.0.9000 2018-01-28 Github (tidyverse/forcats@fdde458)
#> foreign 0.8-69 2017-06-22 CRAN (R 3.4.3)
#> ggplot2 * 2.2.1.9000 2018-01-28 Github (tidyverse/ggplot2@401511e)
#> glue 1.2.0 2017-10-29 CRAN (R 3.4.2)
#> graphics * 3.4.3 2017-12-07 local
#> grDevices * 3.4.3 2017-12-07 local
#> grid 3.4.3 2017-12-07 local
#> gtable 0.2.0 2016-02-26 CRAN (R 3.4.0)
#> haven 1.1.1 2018-01-18 CRAN (R 3.4.3)
#> hms 0.4.1 2018-01-28 Github (tidyverse/hms@e68d386)
#> htmltools 0.3.6 2017-04-28 cran (@0.3.6)
#> httr 1.3.1 2017-08-20 cran (@1.3.1)
#> jsonlite 1.5 2017-06-01 CRAN (R 3.4.0)
#> knitr 1.18 2017-12-27 CRAN (R 3.4.3)
#> lattice 0.20-35 2017-03-25 CRAN (R 3.4.3)
#> lazyeval 0.2.1 2017-10-29 CRAN (R 3.4.2)
#> lubridate 1.7.1 2018-01-28 Github (tidyverse/lubridate@2e11bc9)
#> magrittr 1.5.0 2018-01-28 Github (tidyverse/magrittr@0a76de2)
#> memoise 1.1.0 2017-04-21 CRAN (R 3.4.0)
#> methods * 3.4.3 2017-12-07 local
#> mnormt 1.5-5 2016-10-15 CRAN (R 3.4.0)
#> modelr 0.1.1 2018-01-28 Github (tidyverse/modelr@69381e8)
#> munsell 0.4.3 2016-02-13 CRAN (R 3.4.0)
#> nlme 3.1-131 2017-02-06 CRAN (R 3.4.3)
#> parallel 3.4.3 2017-12-07 local
#> pillar 1.1.0 2018-01-14 CRAN (R 3.4.3)
#> pkgconfig 2.0.1 2017-03-21 CRAN (R 3.4.0)
#> plyr 1.8.4 2016-06-08 CRAN (R 3.4.0)
#> psych 1.7.8 2017-09-09 CRAN (R 3.4.1)
#> purrr * 0.2.4.9000 2018-01-28 Github (tidyverse/purrr@62b135a)
#> R6 2.2.2 2017-06-17 CRAN (R 3.4.0)
#> Rcpp 0.12.15 2018-01-20 CRAN (R 3.4.3)
#> readr * 1.2.0 2018-01-28 Github (tidyverse/readr@2e1fa9a)
#> readxl 1.0.0 2017-04-18 CRAN (R 3.4.0)
#> reshape2 1.4.3 2017-12-11 CRAN (R 3.4.3)
#> rlang 0.1.6.9003 2018-01-28 Github (tidyverse/rlang@73d8f50)
#> rmarkdown 1.8 2017-11-17 CRAN (R 3.4.2)
#> rprojroot 1.3-2 2018-01-03 CRAN (R 3.4.3)
#> RSQLite 2.0 2017-06-19 CRAN (R 3.4.1)
#> rvest 0.3.2 2016-06-17 cran (@0.3.2)
#> scales 0.5.0.9000 2018-01-28 Github (hadley/scales@d767915)
#> stats * 3.4.3 2017-12-07 local
#> stringi 1.1.6 2017-11-17 cran (@1.1.6)
#> stringr * 1.2.0.9000 2018-01-28 Github (tidyverse/stringr@c8bbc0d)
#> tibble * 1.4.2 2018-01-28 Github (tidyverse/tibble@7ab7327)
#> tidyr * 0.7.2.9000 2018-01-28 Github (tidyverse/tidyr@74bd48f)
#> tidyselect 0.2.3 2017-11-06 CRAN (R 3.4.2)
#> tidyverse * 1.2.1 2018-01-28 Github (tidyverse/tidyverse@03ccf9c)
#> tools 3.4.3 2017-12-07 local
#> utf8 1.1.3 2018-01-03 CRAN (R 3.4.3)
#> utils * 3.4.3 2017-12-07 local
#> withr 2.1.1.9000 2018-01-28 Github (jimhester/withr@df18523)
#> xml2 1.2.0 2018-01-24 cran (@1.2.0)
#> yaml 2.1.16 2017-12-12 CRAN (R 3.4.3)Created on 2018-01-28 by the reprex package (v0.1.1.9000).
Possibly related to dplyr issue 2930.
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