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.

This will be a breaking change so needs to be done with a major release.

Currently OperationDetail and OperationField are inner classes within OperationServiceV2. These should be in their own outer classes for ease of serialisation and consistency.

Currently, when calling pytest, we use -m "not udf" to skip backends with missing or broken udf support. For all other features, we've been using a decorator @pytest.mark.skip_backends([SQLite], reason='not supported')` instead.

It would be good to skip udf tests for backends that don't implement them with the decorator. So, calling the tests for a backend skips them automatically if the back

SELECT custkey, sum(totalprice)
FROM orders
GROUP BY custkey
ORDER BY 2 DESC

EXPLAIN

                                      Query Plan
---------------------------------------------------------------------------------------
 Fragment 0 [SINGLE]
     Output layout: [custkey, sum]
     Output partitioning: SINGLE []
     Stage Execution Strategy: UNGROUPED_EXECUTION

问题描述：关于工程中某个工作流节点单独执行不报错，保存工作流时提示：NotClassDefFoundError：Cloud not initialize class dispatch.Http$

问题原因：linkis-publish微服务关于netty-3.6.2.Final.jar升级包缺失

问题解决：将升级包上传重启linkis-publish微服务即可。