paleolimbot opened a new pull request, #2073:
URL: https://github.com/apache/arrow-adbc/pull/2073
I think this didn't work because we only ever wrote COPY output to the
connection after each array, so if there were no arrays, there was no header
sent!
After this PR:
``` r
library(adbcdrivermanager)
#> Warning: package 'adbcdrivermanager' was built under R version 4.3.3
con <- adbc_database_init(
adbcpostgresql::adbcpostgresql(),
uri =
"postgresql://localhost:5432/postgres?user=postgres&password=password"
) |>
adbc_connection_init()
con |>
execute_adbc("DROP TABLE IF EXISTS no_integers")
nanoarrow::basic_array_stream(
list(),
nanoarrow::na_struct(list(x = nanoarrow::na_int32()))
) |>
write_adbc(con, "no_integers")
con |>
read_adbc("SELECT * from no_integers") |>
tibble::as_tibble()
#> # A tibble: 0 × 1
#> # ℹ 1 variable: x <int>
```
<sup>Created on 2024-08-11 with [reprex
v2.1.0](https://reprex.tidyverse.org)</sup>
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