https://clickhouse-test-reports.s3.yandex.net/21020/2ced21c837006053542b9f04c338faebf504f413/fuzzer_asan/server.log
{
    
    bool save_key_columns = !table_join->forceHashJoin() || isRightOrFull(kind);
    if (save_key_columns)
    {
        saved_block_sample = right_table_keys.cloneEmpty();
    }
    else if (strictness == ASTTableJoin::Strictness::Asof)
    {
        
        saved_block_sample.insert(right_table_keys.safeGetByPosition(right_table_keys.columns() - 1));
    }
    
    for (auto & column : sample_block_with_columns_to_add)
        saved_block_sample.insert(column);
    if (nullable_right_side)
        JoinCommon::convertColumnsToNullable(saved_block_sample, (isFull(kind) ? right_table_keys.columns() : 0));
}
Block HashJoin::structureRightBlock(const Block & block) const