Hello David,
04.10.2025 06:55, David Rowley wrote:
On Fri, 3 Oct 2025 at 10:02, Tom Lane <[email protected]> wrote:
David Rowley <[email protected]> writes:
An alternative way would be to propagate those during build_setop_child_paths()
That answer works for me. I was expecting you to just document the
need for the extra check in is_dummy_rel ;-) ... but this way is
perhaps better.
So, I pushed the UNION portion earlier, but on hacking more on the
EXCEPT/INTERSECT patch, I noticed that I don't have the target lists
correct when marking the top-level set op as dummy. ...
Please look at a new anomaly, introduced with 03d40e4b5:
CREATE TABLE t(i integer);
CREATE TABLE pt(i integer) PARTITION BY LIST(i);
SET enable_seqscan = 'off';
SELECT * FROM t UNION SELECT * FROM t
UNION ALL
SELECT * FROM pt;
produces:
ERROR: XX000: unrecognized node type: 0
LOCATION: create_plan_recurse, createplan.c:538
Best regards.
Alexander
