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

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