Improved fix of bug# 2860 - ColumnAdd doesn't work on a DB2 database if Required is true.
Improved fix of bug# 2860 - ColumnAdd doesn't work on a DB2 database if Required is true.

xhoy/otrs,StCyr/otrs,capeit-tto/otrs,xhoy/otrs,brandonshults01/otrs,crythias/otrs,xhoy/otrs,capeit-tto/otrs,thorsteneckel/otrs,moritz/otrs,nilei/otrs,linearregression/otrs,rudy500/otrs,StCyr/otrs,eliasp/otrs,s7design/otrs,noritnk/otrs,noritnk/otrs,s7design/otrs,nilei/otrs,s7design/otrs,linearregression/otrs,mbeijen/otrs-1,mbeijen/otrs-1,MBRG/otrs,s7design/otrs,crythias/otrs,oiami/otrs,linearregression/otrs,PortgasDAce/otrs,eliasp/otrs,rudy500/otrs,brandonshults01/otrs,xhoy/otrs,oiami/otrs,mburggraf/otrs,rudy500/otrs,balazj/otrs,vlascoder/otrs,eliasp/otrs,muehlbauer/otrs,rudy500/otrs,StCyr/otrs,MBRG/otrs,MBRG/otrs,eliasp/otrs,muehlbauer/otrs,thorsteneckel/otrs,StCyr/otrs,capeit-tto/otrs,s7design/otrs,crythias/otrs,muehlbauer/otrs,moritz/otrs,linearregression/otrs,rudy500/otrs,PortgasDAce/otrs,MBRG/otrs,moritz/otrs,oiami/otrs,thorsteneckel/otrs,brandonshults01/otrs,vlascoder/otrs,moritz/otrs,nilei/otrs,PortgasDAce/otrs,brandonshults01/otrs,balazj/otrs,brandonshults01/otrs,thorsteneckel/otrs,thorsteneckel/otrs,crythias/otrs,mbeijen/otrs-1,xhoy/otrs,nilei/otrs,eliasp/otrs,oiami/otrs,noritnk/otrs,StCyr/otrs,mburggraf/otrs,vlascoder/otrs,muehlbauer/otrs,mburggraf/otrs,muehlbauer/otrs,mburggraf/otrs,balazj/otrs,linearregression/otrs,PortgasDAce/otrs,balazj/otrs,MBRG/otrs,mburggraf/otrs,nilei/otrs,oiami/otrs,PortgasDAce/otrs,crythias/otrs,moritz/otrs,balazj/otrs