Reset Rducks scalar-UDF counters

Resets native per-scalar-UDF diagnostic counters without unregistering any DuckDB catalog function. Current liveness gauges such as pending/in-flight counts are preserved; their max fields are reset to the current values.

Usage

rducks_reset_udf_counters(con, name = NULL)

Arguments

con

A duckdb_connection with Rducks enabled.

name

Optional SQL scalar-UDF function name registered with rducks_register_scalar_udf(). If NULL, reset counters for all native Rducks scalar UDFs in the database runtime.

Value

Invisibly TRUE on success.

Examples

# \donttest{
db <- duckdb::dbConnect(duckdb::duckdb(config = list(allow_unsigned_extensions = "true")))
#> duckdb keeps downloaded extensions and secrets in a temporary directory:
#> ℹ /tmp/Rtmp7iTOSm/duckdb
#> This is removed when the R session ends.
#> • Extensions are re-downloaded each session.
#> • Secrets are lost.
#> ℹ Run duckdb(shared_home = TRUE) (or create ~/.duckdb) to keep them (suitable for most users).
#> ℹ Run duckdb(shared_home = FALSE) to accept the temporary directory (and silence this message).
#> ℹ See ?duckdb_storage for details and alternatives.
rducks_enable(db, threads = "single")
rducks_register_scalar_udf(db, "my_fn", function(x) x + 1L,
  args = list(INTEGER), returns = INTEGER)
#> <rducks_scalar_udf_registration>
#>   registered:      yes
#>   name:            my_fn
#>   evaluation_mode: scalar
#>   plan:            direct+serial
#>   signature:       my_fn(INTEGER) -> INTEGER
rducks_reset_udf_counters(db, "my_fn")
rducks_release(db)
DBI::dbDisconnect(db)
# }