Re: question on english strings

[Guillaume Lelarge <guillaume(at)lelarge(dot)info>]

Giuseppe Sacco a écrit :
> Hi, I am about updating the Italian translation for pgAdmin but I need
> to understand the meaning of these strings:
>
> msgid "Typmod in func"
> msgid "Typmod in function"
> msgid "Typmod out func"
> msgid "Typmod out function"
>
> What is a "Typemod" ?

Type modifier.

See http://www.postgresql.org/docs/8.3/static/sql-createtype.html

An excerpt :

The optional type_modifier_input_function and 
type_modifier_output_function are needed if the type supports modifiers, 
that is optional constraints attached to a type declaration, such as 
char(5) or numeric(30,2). PostgreSQL allows user-defined types to take 
one or more simple constants or identifiers as modifiers; however, this 
information must be capable of being packed into a single non-negative 
integer value for storage in the system catalogs. The 
type_modifier_input_function is passed the declared modifier(s) in the 
form of a cstring array. It must check the values for validity (throwing 
an error if they are wrong), and if they are correct, return a single 
non-negative integer value that will be stored as the column "typmod". 
Type modifiers will be rejected if the type does not have a 
type_modifier_input_function. The type_modifier_output_function converts 
the internal integer typmod value back to the correct form for user 
display. It must return a cstring value that is the exact string to 
append to the type name; for example numeric's function might return 
(30,2). It is allowed to omit the type_modifier_output_function, in 
which case the default display format is just the stored typmod value 
enclosed in parentheses.


--
Guillaume.
 http://www.postgresqlfr.org
 http://dalibo.com