Commits
Jinpeng Zhou authored and Micah Kornfield committed d5a2aa2ffb1
PARQUET-2056: [C++] Add ability for retrieving dictionary and indices separately for ColumnReader In some contexts it is useful to be able to retrieve encoding information separately instead of decoding. This introduces new apis in RowGroupReader, ColumnReader, TypedColumnReader, and DictDecoder to support reading batches of dictionary indices. Given that a column chunk only has one dictionary page, the dictionary is read along with the 1st batch. Thanks. Closes #10537 from zjpzlz/expose-encodings Authored-by: Jinpeng Zhou <jinpengz@google.com> Signed-off-by: Micah Kornfield <emkornfield@gmail.com>