"Yujin" <aloudnoise(at)mail(dot)ru> writes:
> When i get query from table with bolean type fields, that have false value ,
> function PDO -> fetch return that fields with not "0" value , but empty
> string.
Are you sure the field is actually false, and not null?
If so, this is a PDO bug, not a Postgres bug.
regards, tom lane