apache / apache/arrow

[Python][Parquet] ParquetWriter reports incorrect schema when specified at wrong order

Open
#39,241 6 comments 0 reactions 0 assignees View on GitHub
Component: Parquet Component: Python Type: bug
Dominant language
C++
Stars
17.1k
Forks
4.3k
Avg merge
3d 13h
Merged PRs (30d)
88

Description

### Describe the bug, including details regarding any error messages, version, and platform.

When I try to write a table to a `ParquetWriter`, specifying schema in a different order gives an error:

```
ValueError: Table schema does not match schema used to create file:
table:
cmdline: list
child 0, item: string
time: double
lock: string vs.
file:
time: double
cmdline: list
child 0, item: string
lock: string
```

### Component(s)

Parquet, Python

Contributor guide

Open the contributing guide

Assessment

This issue has not been assessed yet.

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.