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sql result discrepency with sqlite, postgres and duckdb bug #3 #13784

Open
Tracked by #13811
Omega359 opened this issue Dec 14, 2024 · 0 comments
Open
Tracked by #13811

sql result discrepency with sqlite, postgres and duckdb bug #3 #13784

Omega359 opened this issue Dec 14, 2024 · 0 comments
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@Omega359
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Describe the bug

This is an odd one that I'm unsure what to make of it

CREATE TABLE tab0(col0 INTEGER, col1 INTEGER, col2 INTEGER);
INSERT INTO tab0 VALUES(97,1,99);
INSERT INTO tab0 VALUES(15,81,47);
INSERT INTO tab0 VALUES(87,21,10);
SELECT DISTINCT + col2 * + col2 * - col2 * col2 * + col2 / + col2 + col0 AS col2 FROM tab0;

results in:

External error: query result mismatch:
[SQL] SELECT DISTINCT + col2 * + col2 * - col2 * col2 * + col2 / + col2 + col0 AS col2 FROM tab0
[Diff] (-expected|+actual)
    -4879666
-   -96059504
+   -9292487
    -9913
at test_files/sqlite/random/aggregates/slt_good_102.slt:15306

Datafusion

> SELECT DISTINCT + col2 * + col2 * - col2 * col2 * + col2 / + col2 + col0 AS col2 FROM tab0;
+----------+
| col2     |
+----------+
| -9292487 |
| -9913    |
| -4879666 |
+----------+

sqlite returns a -96059504 result, both duckdb and postgres fail with integer overflow errors.

I think if a db support integer promotion the result from sqlite is actually correct. I have no idea how DF is coming up with it's result unless it's wrapping the value or truncating it somehow.

To Reproduce

sql above

Expected behavior

No response

Additional context

No response

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