On 2016/06/21 21:37, Ashutosh Bapat wrote:
How about using a system column eg, ctid, for the CASE WHEN
conversion; in Rushabh's example the reference to "r1" would be
converted with "CASE WHEN r1.ctid IS NOT NULL THEN ROW(r1.empno,
r1.ename, r1.job, r1.mgr, r1.hiredate, r1.sal, r1.comm, r1.deptno)
END". IMO I think that that would be much simpler than Ashutosh's
approach.
A foreign table can have a view, a regular table, another foreign table
or a materialised view a its target. A view does not support any of the
system columns, so none of them are available.
You are right. Sorry for the noise.
Best regards,
Etsuro Fujita
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