r-polars

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`map_elements` cause R session crach for `struct` object

4

`map_elements` crash for `struct` object, Here is the `map_elements` document for struct in Python: https://docs.pola.rs/user-guide/expressions/user-defined-functions/#combining-multiple-column-values ```r library(polars) pl$DataFrame(mtcars)$ select(pl$col("mpg", "cyl")$to_struct()$map_elements(\(x) x$mpg)) pl$DataFrame(mtcars)$ select(pl$col("mpg", "cyl")$to_struct()$map_elements(\(x) x[["mpg"]])) pl$DataFrame(mtcars)$ select( pl$col("mpg", "cyl")$to_struct()$ map_elements(\(x)...

Yunuuuu

File not found in `write_` and `read_` functions when filepath contains tilde

9

There seems to be an issue locating files when the filepath/source contains a tilde (e.g. `"~/Desktop/some_file.csv"`). This is a common pattern for macOS users. Any ideas what might be causing...

george-wood

Same as pola-rs/polars#16128

eitsupi

eitsupi

Prevent unnamed non-`Field` elements in `pl$Struct()`

5

Close #1011 Breaking so should be in 0.17.0

etiennebacher

eitsupi

Building a rust binding R package depends on this r-polars

24

First of all, thank you very much for this great R Polars project. I would like to implement a db connection rust binding R package and convert data to polars...

jshinonome

Same as pola-rs/polars#16059

eitsupi

Related to #732, pola-rs/polars#14254

eitsupi

`as.data.frame(<RPolarsDataFrame>)` seems slow

1

It seems to take 100 times longer than the conversion from `arrow::Table`. Could `arrow` be using ALTREP to make the materialization later? Details ``` r library(polars) library(arrow, warn.conflicts = FALSE)...

eitsupi