https://clickhouse-test-reports.s3.yandex.net/8367/333ec2e496f4fe4addd22d5fa7c5c2a499099c57/fuzzer/fuzzer.log#fail1
WriteBuffer & out, size_t beg, size_t end)
{
    composeKeyTupleDefinition(out, beg, end);
    writeString(" IN (", out);
    bool first = true;
    for (const auto row : requested_rows)
    {
        if (!first)
            writeString(", ", out);
        first = false;
        composeKeyTuple(key_columns, row, out, beg, end);
    }
    writeString(")", out);
}
void ExternalQueryBuilder::composeKeyTupleDefinition(WriteBuffer & out, size_t beg, size_t end) const