Function flattenTupleRecursive

src/DataTypes/NestedUtils.cpp:344–362

}

Block flattenTupleRecursive(const Block & block, std::vector<Strings> * flattened_ancestors)
{
    Block result;
    if (flattened_ancestors)
        flattened_ancestors->clear();
    for (const auto & elem : block)
    {
        flattenTupleRecursiveImpl(
            elem.column, elem.type,
            [&](const ColumnPtr & col, const DataTypePtr & type, const String & name, const Strings & ancestors)
            {
                result.insert(ColumnWithTypeAndName(col, type, name));
                if (flattened_ancestors)
                    flattened_ancestors->push_back(ancestors);
            },
            elem.name, {});
    }
    return result;
}

void flattenTupleLeafNames(const String & name, const DataTypePtr & type, Names & out)
{