Upgrading - Preinstall - 

We received the following warning on constraints:
Wrong null constraint found: table name: TEMP_ODF_CA_PFM_INVESTMENT column name CREATED_BY should be nullable
Wrong null constraint found: table name: TEMP_ODF_CA_PFM_INVESTMENT column name LAST_UPDATED_DATE should be nullable
Wrong null constraint found: table name: TEMP_ODF_CA_PFM_INVESTMENT column name LAST_UPDATED_BY should be nullable
Wrong null constraint found: table name: TEMP_ODF_CA_PFM_INVESTMENT column name CREATED_DATE should be nullable 

Release:
Component: PPMENV

These WARNs can be ignored