Documentation
Map
Quick Row transformations are available through DataFrame::map function
<?php
data_frame()
->read(from_array(...))
->map(fn (Row $row) => $row->add(bool_entry('odd', $row->valueOf('id') % 2 === 0)))
->write($loader)
->run();
It's the easiest but also the least performant way to transform data. Unless there is no better way please try to avoid using map as it can't be automatically optimized by the engine.
Examples
Contributors
Join us on GitHub
