The Corr_Map input table must have at least two columns (one column pair). The table can have additional columns, but the function ignores them. The Corr_Reduce input table is the Corr_Map output table.
Column Name | Data Type | Description |
---|---|---|
group_column | Any | Defines a group for correlation calculation. This column appears only if you specify the GroupByColumns argument. |
target_column | INTEGER, BIGINT, NUMERIC, or DOUBLE PRECISION | Contains values to be correlated with corresponding values in another target column. |