Added migration script function to set the correct BIGINT column type for tables using PostgreSQL database.
Added migration script function to set the correct BIGINT column type for tables using PostgreSQL database.

MBRG/otrs,MBRG/otrs,brandonshults01/otrs,brandonshults01/otrs,eliasp/otrs,eliasp/otrs,s7design/otrs,rudy500/otrs,mburggraf/otrs,rudy500/otrs,nilei/otrs,brandonshults01/otrs,linearregression/otrs,s7design/otrs,eliasp/otrs,linearregression/otrs,nilei/otrs,thorsteneckel/otrs,xhoy/otrs,crythias/otrs,muehlbauer/otrs,muehlbauer/otrs,linearregression/otrs,nilei/otrs,thorsteneckel/otrs,brandonshults01/otrs,MBRG/otrs,linearregression/otrs,crythias/otrs,xhoy/otrs,eliasp/otrs,s7design/otrs,rudy500/otrs,mburggraf/otrs,xhoy/otrs,rudy500/otrs,muehlbauer/otrs,mburggraf/otrs,xhoy/otrs,brandonshults01/otrs,s7design/otrs,xhoy/otrs,eliasp/otrs,nilei/otrs,muehlbauer/otrs,thorsteneckel/otrs,crythias/otrs,MBRG/otrs,nilei/otrs,mburggraf/otrs,linearregression/otrs,muehlbauer/otrs,mburggraf/otrs,thorsteneckel/otrs,rudy500/otrs,thorsteneckel/otrs,MBRG/otrs,s7design/otrs,crythias/otrs,crythias/otrs