TD_NORMALIZE_OVERLAP Error Conditions - Teradata Vantage

The table function returns an error in the following cases:

• The function invocation does not include a LOCAL ORDER BY clause that includes all of the grouping columns and the Period column.
• The function invocation does not include a HASH BY clause with at least one of the grouping columns.
• The HASH BY clause includes the Period column or other columns that are not part of the grouping columns.
• The function was invoked without a RETURNS clause or the columns specified in the RETURNS clause do not match the input columns or are not in the same order as the input columns.