Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Prints the (logical and physical) plans to the console for debugging.
Syntax
explain(extended=False)
Parameters
| Parameter | Type | Description |
|---|---|---|
extended |
bool, optional | If False (default), prints only the physical plan. If True, prints the parsed, analyzed, and optimized logical plans as well. |
Returns
None
Examples
sdf = spark.readStream.format("rate").load()
sq = sdf.writeStream.format('memory').queryName('query_explain').start()
sq.processAllAvailable()
Print the physical plan only:
sq.explain()
# == Physical Plan ==
# ...
Print all plans:
sq.explain(True)
# == Parsed Logical Plan ==
# ...
# == Analyzed Logical Plan ==
# ...
# == Optimized Logical Plan ==
# ...
# == Physical Plan ==
# ...
sq.stop()