Nic Crane created ARROW-13866: --------------------------------- Summary: [R] Implement Options for all compute kernels available via list_compute_functions Key: ARROW-13866 URL: https://issues.apache.org/jira/browse/ARROW-13866 Project: Apache Arrow Issue Type: Improvement Components: R Reporter: Nic Crane
I'm writing a section in the cookbook about calling kernels which don't have R bindings. I'm using {{utf8_ltrim}} as an example - it appears when we call {{list_compute_functions()}}. I tried to call it by searching for it in the C++ code, seeing that it requires a TrimOptions class of options, and then saw that it has a single parameter, characters. I tried calling {{call_function("utf8_ltrim", Array$create(c("abc", "abacus", "abracadabra")), options = list(characters = "ab"))}} to see what would happen, which resulted in: {{Error: Invalid: Attempted to initialize KernelState from null FunctionOptions}} This is because TrimOptions isn't implemented in arrow/r/src/compute.cpp. We should go through all the compute functions listed via {{list_compute_functions()}} and ensure all of them have options implemented. -- This message was sent by Atlassian Jira (v8.3.4#803005)