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### Dagster version
1.8.1
### What's the issue?
When using `dagster-polars` PolarsParquetIOManager and Pandera Polars to validate schema, we are facing the following error:
> NotImplementedError…
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### Checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pypi.org/project/polars/) of Polars.
### Re…
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Errors out with polars==0.20.10
```python
File [~/.venv/lib/python3.11/site-packages/polars_istr/_utils.py:30](https://vscode-remote+wsl-002bubuntu-002d22-002e04.vscode-resource.vscode-cdn.net/hom…
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@aitap since you are familiar with the C API issue https://github.com/Rdatatable/data.table/issues/6180
I was wondering if you may be interested to write a blog for the Raft about the current state o…
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- [x] #94
- [ ] Add predicates that are based on time aggregations (ie., mean, median, moving averages) for more constraints
- [ ] Add support for polars SQL
- [ ] Add `not()` syntax
- [ ] Create…
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### Checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pypi.org/project/polars/) of Polars.
### Reprodu…
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### Describe the bug
Narwhals implementation of `lit` breaks when it is the left most expr.
Figured this out while doing a fold starting with a lit initial value.
### Steps or code to reproduce t…
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```python
import polars as pl
import psycopg2
import argparse
from utils import general_utils, AWS_S3, Postgres
def main(args: argparse.Namespace):
aws_config = general_utils.load_yaml(a…
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Currently blocked on:
* https://github.com/apache/arrow-rs/issues/6360
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Multiple end-goals:
- Use same arrow lib as the rest of the ecosystem, which is where all the bug & perf fixes are ac…
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### Checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pypi.org/project/polars/) of Polars.
### Re…