Apache Spark

Describe the bug
Using a time dimension on a runningTotal measure on Snowflake mixes quoted and unquoted columns in the query. This fails the query, because Snowflake has specific rules about quoted columns. Specifically:

• All unquoted column names are treated as upper case
• Quoted column names are case sensitive.

So "date_from" <> date_from

To Reproduce
Steps to reproduce

At this moment relu_layer op doesn't allow threshold configuration, and legacy RELU op allows that.
We should add configuration option to relu_layer.

Feature request

Overview

DESCRIBE DETAIL is supported in SQL. But similar to DESCRIBE HISTORY which has Scala and Python APIs as DeltaTable.history(), there should be DeltaTable.details()

Willingness to contribute

The Delta Lake Community encourages new feature contributions. Would you or another member of your organization be willing to contribute an implementation

I have a simple regression task (using a LightGBMRegressor) where I want to penalize negative predictions more than positive ones. Is there a way to achieve this with the default regression LightGBM objectives (see https://lightgbm.readthedocs.io/en/latest/Parameters.html)? If not, is it somehow possible to define (many example for default LightGBM model) and pass a custom regression objective?

Used Spark version
Spark Version: 2.4.4
Used Spark Job Server version
SJS version: v0.11.1

Deployed mode
client on Spark Standalone

Actual (wrong) behavior
I can't get config, when post a job with 'sync=true'. I got it：
http://localhost:8090/jobs/ff99479b-e59c-4215-b17d-4058f8d97d25/config
{"status":"ERROR","result":"No such job ID ff99479b-e59c-4215-b17d-4058f8d97d25"