paleolimbot opened a new issue, #281:
URL: https://github.com/apache/arrow-nanoarrow/issues/281

   After https://github.com/apache/arrow-adbc/pull/986 , in which the rather 
complex union returned by `adbc_connection_get_info()` can't be converted to an 
R vector:
   
   ``` r
   library(adbcdrivermanager)
   
   db <- adbc_database_init(adbcsqlite::adbcsqlite(), uri = ":memory:")
   con <- adbc_connection_init(db)
   as.data.frame(adbc_connection_get_info(con, 0))
   #> Error in infer_nanoarrow_ptype(x$get_schema()): Can't infer R vector type 
for `int32_to_int32_list_map` <map<entries: struct<key: int32, value: 
list<item: int32>>>>
   ```
   
   <sup>Created on 2023-08-18 with [reprex 
v2.0.2](https://reprex.tidyverse.org)</sup>


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