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Aggregation result is incorrect using new analyzer #43257

@novikd

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@novikd

Query:

SELECT round(avg(log(2) * number), 6) AS k FROM numbers(10000000)
GROUP BY (number % 2) * (number % 3), number % 3, number % 2
HAVING avg(log(2) * number) > 3465735.3 ORDER BY k
SETTINGS allow_experimental_analyzer=1, optimize_group_by_function_keys=0;

Output:

Ok.

0 rows in set. Elapsed: 0.079 sec. Processed 10.01 million rows, 80.06 MB (127.02 million rows/s., 1.02 GB/s.)

Query:

SELECT round(avg(log(2) * number), 6) AS k FROM numbers(10000000)
GROUP BY (number % 2) * (number % 3), number % 3, number % 2
HAVING avg(log(2) * number) > 3465735.3 ORDER BY k
SETTINGS allow_experimental_analyzer=0, optimize_group_by_function_keys=0;

Output:

┌──────────────k─┐
│   3465735.9028 │
│   3465735.9028 │
│ 3465736.595947 │
└────────────────┘

3 rows in set. Elapsed: 0.085 sec. Processed 10.01 million rows, 80.06 MB (117.56 million rows/s., 940.52 MB/s.)

cc @kitaisreal

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experimental featureBug in the feature that should not be used in production

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