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[GPU Error Bug] SELECT * FROM <table> JOIN ( SELECT ALL <number> FROM <table>) AS <alias> Brings Errors #816

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qwebug opened this issue Nov 6, 2023 · 0 comments

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@qwebug
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qwebug commented Nov 6, 2023

Describe:

Using SELECT * FROM <table> JOIN ( SELECT ALL <number> FROM <table>) AS <alias>  brings different results , when set EXECUTOR_DEVICE 'CPU' and 'GPU'.

SQL:

CREATE TABLE t1(c0 integer NOT NULL, c2 TEXT);
ALTER SESSION SET EXECUTOR_DEVICE='CPU';
SELECT * FROM t1 JOIN (SELECT ALL 0.42445757423087693 FROM t1) AS sub0 ON true WHERE NOT (t1.c2) NOT IN (t1.c2, t1.c2);

Result:

No rows returned.

SQL:

ALTER SESSION SET EXECUTOR_DEVICE='GPU';
SELECT * FROM t1 JOIN (SELECT ALL 0.42445757423087693 FROM t1) AS sub0 ON true WHERE NOT (t1.c2) NOT IN (t1.c2, t1.c2);

Result:

Query execution failed because the query contains not supported self-join pattern. We suspect the query requires multiple left-deep join tree due to the join condition of the self-join and is not supported for now. Please consider chaning the table order in the FROM clause.

Environment:

Docker Deployment

https://hub.docker.com/layers/heavyai/heavyai-ee-cuda/latest/images/sha256-5af3ad3a00cbc5ce09c299b8b81cda96521a27373dbb1e59209c02358cfd9b1f?context=explore

Docker DIGEST: sha256:5af3ad3a00cbc5ce09c299b8b81cda96521a27373dbb1e59209c02358cfd9b1f

HeavyDB Version: 7.1.0-20230821-eae9ec17da

HeavyDB license: Free Edition

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