@murphy-brian ,
The ELT DML snaps (namely the LOAD, INSERT-SELECT, MERGE INTO, SCD2, EXECUTE) were intentionally designed to not execute in Validation mode (Design mode) for the following reasons:
- These snaps can inadvertently corrupt or make the data invalid on production target tables if somebody runs validation accidentally on those pipelines. We want to prevent such mishaps from occurring.
- Validation mode (Design mode) can run fast when DML snaps are not writing into the target tables, otherwise it will not only increase the performance overheads, but also increase CDW costs.
In order to understand your problem better, can you provide some example use cases? This will help us in addressing the problem.