Method getHeader

src/QueryPipeline/QueryPipeline.cpp:597–604

}

Block QueryPipeline::getHeader() const
{
    if (input)
        return input->getHeader();
    if (output)
        return output->getHeader();
    throw Exception(ErrorCodes::LOGICAL_ERROR, "Header is available only for pushing or pulling QueryPipeline");
}

SharedHeader QueryPipeline::getSharedHeader() const
{