Major Description
The formatted explalin mode is the powerful explain mode to show the details of query plan. In AQE, the query stage know its statistics if has already materialized. So it can help to quick check the conversion of plan, e.g. join selection.
A simple example:
SELECT * FROM t JOIN t2 ON t.c = t2.c;
== Physical Plan == AdaptiveSparkPlan (21) +- == Final Plan == * SortMergeJoin Inner (13) :- * Sort (6) : +- AQEShuffleRead (5) : +- ShuffleQueryStage (4), Statistics(sizeInBytes=16.0 B, rowCount=1) : +- Exchange (3) : +- * Filter (2) : +- Scan hive default.t (1) +- * Sort (12) +- AQEShuffleRead (11) +- ShuffleQueryStage (10), Statistics(sizeInBytes=16.0 B, rowCount=1) +- Exchange (9) +- * Filter (8) +- Scan hive default.t2 (7) +- == Initial Plan == SortMergeJoin Inner (20) :- Sort (16) : +- Exchange (15) : +- Filter (14) : +- Scan hive default.t (1) +- Sort (19) +- Exchange (18) +- Filter (17) +- Scan hive default.t2 (7)
