CVS commit by psn: 

Added support for some more constraints and attributes


  M +55 -43    drivers/mySQL/mysqlfield.cpp   1.10
  M +11 -8     drivers/mySQL/mysqlfield.h   1.9
  M +38 -33    kexidbfield.cpp   1.12
  M +40 -6     kexidbfield.h   1.12