For this question, there are usually three tables that most users ask about: the _tmp
, _raw
and _scd_
tables.
_tmp
is safe to delete. If there’s a sync in-progress, it might fail (but should work fine on a retry).
_scd_
is not safe to delete. It’s required for incremental normalization to continue working.
_raw
is technically safe to delete (assuming normalization is completing successfully after every sync)