Hattonuri

cum_sum operation not supported for decimals

1

### 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. ###...

Use move in WeakRingBuffer where capable. Allow one-sized ring buffers

1

By this time we are not allowed to create one-sized channel just because of asserts i suppose this is because of: https://github.com/khizmax/libcds/blob/9985d2a87feaa3e92532e28f4ab762a82855a49c/cds/opt/buffer.h#L343 but 1 & (0) == 0 . so...

Prepare enqueue API

4

As for today we have bulk operations which reduce synchronization costs in average but it has high latency as we should move many elements at once. And I think API...