- DataFrame.lazy() LazyFrame #
Start a lazy query from this point. This returns a LazyFrame object.
Operations on a LazyFrame are not executed until this is requested by either calling:
(run on a small number of rows)
(run on all data)
(print unoptimized query plan)
(print optimized query plan)
(show (un)optimized query plan as graphviz graph)
Lazy operations are advised because they allow for query optimization and more parallelization.