kubat-square-sense opened a new issue, #45236:
URL: https://github.com/apache/arrow/issues/45236
### Describe the bug, including details regarding any error messages,
version, and platform.
We noticed high memory consumption while reading parquet files with pyarrow
18.1.
Loading a 600Kb parquet file into a 22Mb consumes over 1 Gb of memory. On 3
different machines (wsl, linux, macos), profiling with memray showed a peak
memory of 1 Gb, 1.1 Gb and 1.8 Gb.
Running the same code with pyarrow 17 consumes less than 200 Mb.
Its quite simple to reproduce. I've attached a dummy parquet which consume
slightly less but still over 1 GB.
```python
import pyarrow.parquet as pq
data = pq.read_table('test.parquet')
print(data.nbytes / 1024**2)
```
[test.zip](https://github.com/user-attachments/files/18395000/test.zip)
### Component(s)
Python
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