Re: foreign data wrapper option manipulation during Create foreign table time?

On 10/28/2014 05:26 PM, Demai Ni wrote:
> hi, guys,
>
> I am looking for a couple pointers here about fdw, and how to change 
> the option values during CREATE table time.
>
> I am using postgres-xc-1.2.1 right now. For example, it contains 
> file_fdw, whose create-table-stmt looks like:
> CREATE FOREIGN TABLE t1(....)
> SERVER file_server
> OPTIONS(format 'text',filename *'testing.txt'*);
>
> I would like to replace the 'testing.txt' with absolute path like 
> '/user/testor1/testing.txt', and make sure the new value is saved in 
> pg_foreign_table; the file_fdw_validator is used to validate the 
> options, but is there a way to replace the optionValue here? And get 
> the new value stored in pg_foreign_table?
>
> Thanks
>
> BTW, in my real use case, I am trying to interpret a hdfs file and 
> would need to save some hostname/port information in the option value, 
> which not necessary specified by user.
>


This is the wrong list to ask this - it's a usage question that belongs 
on pgsql-general

See the documentation for ALTER FOREIGN TABLE.

cheers

andrew