Re: dblink for 8.4 should work without user-mappings

What happened to this patch?

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Itagaki Takahiro wrote:
> contrib/dblink in 8.4 supports a server name by CREATE SERVER for connection
> string, but it always requires an user-mapping (by CREATE USER MAPPING).
> However, I think it should work user-mappings because it works when
> the connection string is passed directly.
>
> =# SELECT * FROM dblink('dbname=postgres', 'SELECT current_user') AS t(i name);
> (ok)
>
> =# CREATE FOREIGN DATA WRAPPER postgresql VALIDATOR postgresql_fdw_validator;
> =# CREATE SERVER server1 FOREIGN DATA WRAPPER postgresql OPTIONS (dbname 'postgres');
> =# SELECT * FROM dblink('server1', 'SELECT 1') AS t(i integer);
> ERROR: user mapping not found for "postgres"
>
> The attached patch adds 'missing_ok' parameter to GetUserMapping() and
> made dblink to use it. There should be no additional security issues here
> because dblink's original security check works even for server name mode.
>
> Regards,
> ---
> ITAGAKI Takahiro
> NTT Open Source Software Center

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