Re: pg_restore cannot restore function - Mailing list pgsql-sql

OK, we figured it out.
The problem is the documentation confused me!!!
In man page of pg_restore:
-P function-name
--function=function name      Specify a procedure or function to be restored.

User will assume that syntax of restoring a function is same as 
restoring a table, but it's not true, it's slightly different.
To restore a table:
pg_restore -Rxt mytable -d mydb2 dbf
works, but to restore a function:
pg_restore -P myfunction -d mydb2 dbf
won't work, and you need to use:
pg_restore -P "\"myfunction\" (args and type)" -d mydb2 dbf
to make it work!!!!!


I believe that the man page of pg_restore should be improved.


Thanks.



Jie Liang



-----Original Message-----
From: Jan Wieck [mailto:JanWieck@Yahoo.com]
Sent: Monday, July 01, 2002 11:14 AM
To: Jie Liang
Cc: 'Bruce Momjian'; 'admin@postgresql.org'; 'pgsql-sql@postgresql.org'
Subject: Re: [SQL] pg_restore cannot restore function


Jie Liang wrote:
> 
> Oops,my OS is FreeBSD4.3 PostgreSQL7.2

I cannot see such an error message in the pg_restore sources at all. Are
you sure to use the right versions together?


Jan

> 
> Thanks
> 
> Jie Liang
> 
> -----Original Message-----
> From: Jie Liang
> Sent: Friday, June 28, 2002 1:46 PM
> To: 'Jan Wieck'
> Cc: 'Bruce Momjian'; 'admin@postgresql.org'; 'pgsql-sql@postgresql.org'
> Subject: RE: [SQL] pg_restore cannot restore function
> 
> No any error msg in the logfile, I didn't see any create function
statement
> in my logfile which I enabled the query log.
> This function is written in PL/pgSQL which is enabled in target db,
> If I pg_dump the schema into a plain text file, I can see its defination
> there, I can easily copy & paste (restore) it into mydb2.
> however, I failed to restore it by using flag -P with compressed file.
> I also tried to use
> su postgres -c "/usr/local/pgsql/bin/pg_restore --function=myfunction
> --dbname=mydb2 dbf"
> error msg
> pg_restore: [archiver] could not open input file: No such file or
directory
> 
> weird???
> 
> I use
> pg_restore -Rxt mytable -d mydb2 dbf
> have no such a problem, it works.
> 
> Is any syntax error??
> I am confused by documentation now!
> Is it a bug????
> 
> Thanks
> 
> Jie Liang
> 
> -----Original Message-----
> From: Jan Wieck [mailto:JanWieck@Yahoo.com]
> Sent: Friday, June 28, 2002 12:39 PM
> To: Jie Liang
> Cc: 'Bruce Momjian'; 'admin@postgresql.org'; 'pgsql-sql@postgresql.org'
> Subject: Re: [SQL] pg_restore cannot restore function
> 
> Jie Liang wrote:
> >
> > I use
> > pg_dump -Fc mydb > dbf
> > then I create another db by:
> > createdb mydb2
> > I use
> > pg_restore -P myfunction -d mydb2 dbf
> >
> > cannot restore myfunction into mydb2
> >
> > why??????
> 
> Good question. Is there any error message in the postmaster log?
> 
> If the function is written in a procedural language, is that language
> enabled in the target database? If the function is written in the SQL
> language, do all underlying objects like tables and views exist? If it's
> a C language function, does the shared object containing the function
> exist at the expected location?
> 
> Jan
> 
> --
> 
> #======================================================================#
> # It's easier to get forgiveness for being wrong than for being right. #
> # Let's break this rule - forgive me.                                  #
> #================================================== JanWieck@Yahoo.com #

-- 

#======================================================================#
# It's easier to get forgiveness for being wrong than for being right. #
# Let's break this rule - forgive me.                                  #
#================================================== JanWieck@Yahoo.com #