Method appendElement

src/function/aggregate/collect.cpp:76–92

}

void CollectState::appendElement(ValueVector* input, uint32_t pos,
    InMemOverflowBuffer* overflowBuffer) {
    CollectListElement newElement{
        overflowBuffer->allocateSpace(CollectListElement::size(input->dataType))};
    newElement.setNextElement(nullptr);
    input->copyToRowData(pos, newElement.getDataPtr(), overflowBuffer);

    if (tail.valid()) {
        tail.setNextElement(newElement);
    } else {
        DASSERT(!head.valid());
        head = newElement;
    }
    tail = newElement;

    ++listSize;
}

void CollectState::resetList() {
    head = {};