Fixed Issues for DSP

Date resolved	Issue number	Description
2020-10-06	DSP-20692	Going from Canvas to SPL and back could populate optional arguments with SPL default values
2020-09-22	DSP-14699, SCP-18898	scloud ingest post-metrics command does not work
2020-09-21	DSP-26854	To_Splunk_JSON and the Write to Splunk with Batching functions do not handle timestamp and host fields correctly for metrics data. Timestamps are converted incorrectly and the host field is dropped.
2020-09-09	DSP-25154, DSP-20799	Save and Activate actions need a preview job first when in SPL mode
2020-08-27	DSP-13537	Flink checkpoint files do not get cleaned up in Minio
2020-08-25	DSP-20799, DSP-25154	Users should not need to start a preview job to compile SPL to UPL
2020-07-27	DSP-14655	After updating UI cert and deploying, nginx did not automatically restart.
2020-07-14	DSP-23540	Viewing or previewing a pipeline with more than 6 functions may result in a "500 - Unable to retrieve metrics error"
2020-06-25	DSP-20372, DSP-19212	Variable assignments are renamed when toggling between SPL to Canvas to SPL
2020-06-16	DSP-11076	The filter in preview results does not work.
2020-05-13	DSP-21005	Function with arguments of type expression cannot be used with argument value null in the SPL2 Pipeline Builder.