Re: Column-Level Privileges

Tom, all,

In the attached patch-

* Tom Lane (tgl@sss.pgh.pa.us) wrote:
> * Some of the information_schema views are specified to respond to
> per-column privileges; the column_privileges and columns views
> certainly need work now to meet spec, and there might be others.

Done.

> * It might be appropriate to let the pg_stats view expose stats for
> columns you have select privilege for, even if you haven't got it
> across the whole table.

Done.

> * We probably ought to invent has_column_privilege SQL functions
> analogous to has_table_privilege; this is not just for completeness,
> but is probably necessary to finish the above items.

Done.

> * ISTM that COPY with a column list should succeed if you have
> SELECT or INSERT privilege on just the mentioned columns.

Done.

> * Perhaps it would be appropriate to let LOCK TABLE succeed if you have
> proper permissions on at least one column of the table.  However, it's
> bad enough that LOCK TABLE examines permissions before locking the table
> now; I don't think it ought to be grovelling through the columns without
> lock.  So this might be a place to leave well enough alone.

Left alone.

    Thanks,

        Stephen