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Basic implementation

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This commit is contained in:
anton 2019-02-15 10:00:50 +03:00
parent 5cb04155d7
commit 2868bbcb21
1 changed files with 5 additions and 4 deletions
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9
dbms/src/Functions/flatten.cpp
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@ -43,13 +43,14 @@ public:
IColumn & result_data = result_col->getData();
IColumn::Offsets & result_offsets = result_col->getOffsets();
result_data.reserve(input_rows_count * 10);
result_offsets.resize(input_rows_count);
// todo
// result_data.reserve();
// result_offsets.resize();
IColumn::Offset current_offset = 0;
for (size_t i = 0; i < input_rows_count; ++i)
{
const auto flatten_data = flatten(arg_data, current_offset, arg_offsets[i]);
const auto & flatten_data = flatten(arg_data, current_offset, arg_offsets[i]);
result_data.insertRangeFrom(flatten_data, 0, flatten_data.size());
current_offset += flatten_data.size();
result_offsets[i] = current_offset;
@ -66,7 +67,7 @@ private:
bool addField(DataTypePtr type_res, const Field & f, Array & arr) const;
const ColumnArray flatten(const IColumn & /*data*/, size_t /*from*/, size_t /*to*/) const
const ColumnArray & flatten(const IColumn & /*data*/, size_t /*from*/, size_t /*to*/) const
{
// todo
}