Sets the default for parquet_open_writer/parquet_open_reader's use_threads=, i.e.
whether Arrow's own internal thread pool is used for a reader's or writer's column work.
Captured at open; an explicit use_threads= still wins.
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| logical, | intent(in) | :: | flag |
.true. to use Arrow's thread pool (the factory default). |
subroutine parquet_set_default_use_threads(flag) logical, intent(in) :: flag !! .true. to use Arrow's thread pool (the factory default). cfg_default_use_threads = flag end subroutine parquet_set_default_use_threads