Danilo Fortunato <danilo(dot)fortunato(dot)2(at)gmail(dot)com> writes:
> Can anybody explain the meaning of the N string operator ?
The SQL standard says that N'foo' is a literal of the data type NATIONAL
CHARACTER. PG supports this syntax (and the type name) but treats it the
same as plain character/varchar.
> Is there a section in the PostgreSQL documentation that describes it ?
I don't see it offhand. I think it's pretty much useless/deprecated
anyway so I'm not sure it's worth documenting.
regards, tom lane