Redshift Spectrum CTE Union

Question

I have a query with a CTE that uses a Spectrum table. When I try to union the CTE with itself:

WITH foo AS (
  SELECT col1
  FROM spectrum.bar
)
SELECT * FROM foo UNION ALL
SELECT * FROM foo;

I get the following error:

[XX000][500310] [Amazon](500310) Invalid operation: Relation "spectrum_foo_58abe8db83a3e" already exists Details: ----------------------------------------------- error: Relation "spectrum_foo_58abe8db83a3e" already exists code: 13 ..

Is this a known issue and/or is there any way to work around it (that doesn't involve pasting the original query for every union)?

Answer 1

If this can be helpful to someone, as a workaround I've created a view instead of using CTE.

CREATE VIEW foo_view AS
  SELECT col1
  FROM spectrum.bar
with no schema binding;

SELECT * FROM foo_view UNION ALL
SELECT * FROM foo_view;