We are using lookup transformation in SSIS 2012. The lookup transformation queries a table with two date columns. When we hover the mouse over the two columns in the 'columns' tab of the lookup transformation editor, the two columns show as DT_WSTR instead of DT_DBDATE. This causes the SSIS package to fail due to data type mismatch.
A similar abandoned thread is available at:
http://stackoverflow.com/questions/12391783/why-does-ssis-now-convert-sql-dates-to-dt-wstr
Please help.