Is uniformly distributed – Otherwise skew data will cause unbalances in the volume of data that will be stored in each compute node leading to undesired situations where some slices will process bigger amounts of data than others and causing bottlenecks.As a rule of thumb, choose a column that:.A single column acts as a distribution key (DISTKEY) and helps place matching values on the same node slice.Redshift supports four distribution styles AUTO, EVEN, KEY, or ALL.Table distribution style determines how data is distributed across compute nodes and helps minimize the impact of the redistribution step by locating the data where it needs to be before the query is executed.Redshift Federated Query feature allows querying and analyzing data across operational databases, data warehouses, and data lakes.
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