cloud-fan commented on code in PR #45488:
URL: https://github.com/apache/spark/pull/45488#discussion_r1538626149
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sql/core/src/test/scala/org/apache/spark/sql/SparkSessionExtensionSuite.scala:
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@@ -583,6 +611,24 @@ case class MyParser(spark: SparkSession, delegate:
ParserInterface) extends Pars
delegate.parseQuery(sqlText)
}
+case class ExplainPlanInfoTagRule() extends Rule[SparkPlan] {
Review Comment:
Yes, the EXPLAIN command will call this plugin implementation and append the
result to the command output as extended information. Then we don't need to add
new APIs in `QueryPlan` and the plugin can also be more flexible as it sees the
full plan tree.
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