dilipbiswal opened a new pull request #24427: [SPARK-27531] Improve explain output of describe table command to show the inputs to the command. URL: https://github.com/apache/spark/pull/24427 ## What changes were proposed in this pull request? Currently "EXPLAIN DESC TABLE" is special cased and outputs a single row relation as following. This is not consistent with how we handle explain processing for other commands. Current output: ``` spark-sql> EXPLAIN DESCRIBE TABLE t1; == Physical Plan == *(1) Scan OneRowRelation[] ``` After change: ``` spark-sql> EXPLAIN DESC EXTENDED t == Physical Plan == Execute DescribeTableCommand +- DescribeTableCommand `t`, true ``` ## How was this patch tested? Added new tests in SQLQueryTestSuite.
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