hi, i have a problem whith columnDefinition, i use it in field boolean, in my application using oracle database, and set so

but in database che field can't set default value, i use also in configuration file
<prop key="hibernate.query.substitutions">true 1, false 0</prop> but does not work the same, instead if i use postresql database the field set correctly default value false.
How do i for work my application in oracle and also postgresql?
Many thanks to all