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Analyzer (experimental feature, not ready for production): Sanitizer: Downcast of address ((DB::ColumnVector<unsigned long>)) which does not point to an object of type 'const DB::ColumnNullable' #57086

@Algunenano

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@Algunenano

Report 1: https://s3.amazonaws.com/clickhouse-test-reports/57052/47abb9e879ef694791f5667fe1eb9b3356346189/fuzzer_astfuzzerubsan/report.html

Query that reproduces it:

SELECT
    'limit w/ GROUP BY',
    count(NULL),
    number
FROM remote('127.{1,2}', view(
    SELECT intDiv(number, 2147483647) AS number
    FROM numbers(10)
))
GROUP BY number
    WITH ROLLUP
ORDER BY
    count() ASC,
    number DESC NULLS LAST
SETTINGS limit = 2

Works fine without the analyzer.

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experimental featureBug in the feature that should not be used in productionfuzzProblem found by one of the fuzzers

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