Date and Time Data Types
Two columns are synthesized as follows:
A number can be appended to the new column names as needed to create unique names. For example, if ColumnName_DATE already exists in the table, ColumnName_DATE_2 can be used as the new column name. You can copy the date and time to a TIMESTAMP data type.
If the data source already contains a column named ColumnName_DATE or ColumnName_TIME, the Teradata OLE DB Access Module adds a number to the new column names to maintain unique names for the new columns; for example, ColumnName_DATE_2.