Zverev Konstantin

perf(python): add __slots__ to pl.Expr, pl.LazyFrame, built in namespaces, various internal structures and some dtypes.

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Closes https://github.com/pola-rs/polars/issues/13198 In this PR are "safe" additions of `__slots__`. Mostly for classes that are not usually subclassed by users - `pl.Expr`, its subclasses and build in namespaces. `polars.datatypes.classes` also...

Add __slots__ to pl.Expr and pl.LazyFrame

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### Description Profiled count of created pl.Expr and pl.LazyFrame in my use case (graphQL api on top of polars). Found that one of the heaviest queries creates pl.Expr around 3k...

Hi! It would be great to support elasticsearch, because it's fairly popular and has [SQL](https://www.elastic.co/guide/en/elasticsearch/reference/current/xpack-sql.html) as rest api. Also it has multiple [output formats](https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-rest-format.html) and OBDC/JBDC drivers.

## What is the problem your feature solves, or the need it fulfills? Being able to use "production-grade" caching out of the box, without needing to dig deep into caching...

Widget does not work in inlines with grappelli admin

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* django-json-widget version: 1.1.1 * Django version: 3.2 * Python version: 3.10 * Operating System: linux ### Description Widget is not editable when used in inlines with grappelli installed In...

Closes https://github.com/pola-rs/polars/issues/9908 Another go at boolean list set operations, while I have free time. @ritchie46 want to verify that my approach is ok. Not a fan of Either and unused...

https://http.cat/status/420 Only half serious :smile_cat:

Hi. I wanted to implement my own backend selection (basically least connections), but faced some inconvenience and issues. To address Inconvenience: Moved `BackendIter` bound into `BackendSelection::Iter`. It was only used...

Hi. Thanks for great library and convenient CONTRIBUTING.md. I'm currently using my own snippet for advisory_lock that's very similar, but I added functionality for checking locks, mostly to not over-spam...