You are viewing a plain text version of this content. The canonical link for it is here.

Posted to jira@arrow.apache.org by "Cédric Hernalsteens (Jira)" <ji...@apache.org> on 2021/09/29 19:33:00 UTC

[jira] [Created] (ARROW-14176) Filename-based partitioning scheme

Cédric Hernalsteens created ARROW-14176:
-------------------------------------------

             Summary: Filename-based partitioning scheme
                 Key: ARROW-14176
                 URL: https://issues.apache.org/jira/browse/ARROW-14176
             Project: Apache Arrow
          Issue Type: Wish
            Reporter: Cédric Hernalsteens


This originates from [this SO question|[https://stackoverflow.com/questions/69379083/read-a-partitioned-parquet-dataset-from-multiple-files-with-pyarrow-and-add-a-pa].]

The idea is to have a portioning scheme that would allow to construct a primary key from the filename.

Let's say that one is trying to read `/data-N.parquet` where `N` is an integer. That information should go in a primary key for later reference.

This is quite similar to have the files laid-out like this : `/N/data.parquet` so I imagine this is technically feasible.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)