Explanation

Table Type: Hash distributed.
Hash-distributed tables improve query performance on large fact tables.
Index type: Clusted columnstore
Scenario:
Mechanical Workflow has a named Table1 that is 1 TB. Large aggregations are performed on a single column of Table 1.
References:
https://docs.microsoft.com/en-us/azure/sql-data-warehouse/sql-data-warehouse-tables-distribute