big-data

Is your feature request related to a problem? Please describe.
Many static type checkers have issues finding Cython's stubs.
Here is from running mypy on my current project:

error: Skipping analyzing "cython": found module but no type hints or library stubs

The same issue can be seen when using import Cython as cython:

error: Skipping analyzing "Cython": found module but 

I am working on creating a WandbCallback for Weights and Biases. I am glad that CatBoost has a callback system in place but it would be great if we can extend the interface.

The current callback only supports after_iteration that takes info. Taking inspiration from XGBoost callback system it would be great if we can have before iteration that takes info, before_training, and `after

Remove the initial shortcut sync code in viewer/db.js for v3.1. Note that to upgrade to v3.1+ you must upgrade to v3.0 first.

We should use com.clickhouse.jdbc.ClickHouseDriver instead of ru.yandex.clickhouse.ClickHouseDriver.

2022-01-11T18:45:27.806+0900	WARN	main	ru.yandex.clickhouse.ClickHouseDriver	******************************************************************************************
2022-01-11T18:45:27.806+0900	WARN	main	ru.yandex.clickhouse.ClickHouseDriver	* This driver is DEPRECATED. Please use [c

Avoid controlling endless loop with exception in loadAnonymousClasses, e.g. by extracting loading class to the method:

  private boolean tryLoadClass(String innerClassName) {
        try {
            parent.loadClass(innerClassName);
        } catch (ClassNotFoundException ex) {
            return false;
        }
        return true;
    }

https://sonarcloud.io/project

During Delta release, we manually execute run-integration-tests.py. However, this only runs scala 2.12, and we should be running it for all scala versions.

... to make it easier to read Vespa documentation on an e-reader / offline

Vespa documentation is generated using Jekyll from .md and .html files, look into options for generating the artifact as part of site generation (there might be plugins we can use here)

Use case:
Add the ability to search for an element in an array and retrieve back the array index.
As per the PostgreSQL documentation:

array_position ( anycompatiblearray, anycompatible [, integer ] ) → integer

Returns the subscript of the first occurrence of the second argument in the array, or NULL if it's not present