3301319 - "View .. was .. invalidated due to DDL ..." after "alter database upgrade" -- SAP IQ

After version upgrade to 16.1 sp05.07 from 16.0 SP11.x, noticed a high number of "View ... in database ... was invalidated due to DDL operations on one of its referenced objects" messages in *.srvlog and took long upgrade time. In addition to accessing a View which is 'invalid' status, following error message returns.

• Selecting an invalid view

  > Select * from v1 ;    <= In case of 'v1' invalid mode

      Pop-Uped Error  =>

        Could not execute statement.
           Cannot use view 'v1' because it is invalid
           SQLCODE=-1040, ODBC 3 State="42000"

• First accessing an invalid View

       When firstly accessing a View which is 'invalid' status after IQ server started, OR, after completed "Alter database upgrade", following error message returns in *.srvlog.

      ...
      ... Performance warning: View "v1" in database "TEST_IQ161SP05" was invalidated due to DDL operations on one of its referenced objects

• Upgrade from IQ16.0 to IQ16.1

        While running 'Alter database upgrade' from IQ16.0 to IQ16.1, above 'Performance warning: View...' messages are logged to *.srvlog.
        But between same IQ16.1, 'Alter database upgrade' doesn't take View validation check processing.

• SAP IQ 16.0
• SAP IQ 16.1

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