bkietz commented on a change in pull request #8188:
URL: https://github.com/apache/arrow/pull/8188#discussion_r490997910
##########
File path: python/pyarrow/_dataset.pyx
##########
@@ -1899,7 +1912,7 @@ cdef shared_ptr[CScanContext] _build_scan_context(bint
use_threads=True,
cdef void _populate_builder(const shared_ptr[CScannerBuilder]& ptr,
list columns=None, Expression filter=None,
- int batch_size=32*2**10) except *:
+ int batch_size=2**20) except *:
Review comment:
will do
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File path: python/pyarrow/_dataset.pyx
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@@ -1013,27 +1013,36 @@ cdef class ParquetReadOptions(_Weakrefable):
dictionary_columns : list of string, default None
Names of columns which should be dictionary encoded as
they are read.
+ enable_parallel_column_conversion : bool, default False
+ Whether single files may be read in parallel (ignored when reading
+ multiple files to avoid thread contention).
Review comment:
alright
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