Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/6747#discussion_r32196679
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/SparkSQLParser.scala
---
@@ -57,6 +57,7 @@ private[sql] class SparkSQLParser(fallback: String =>
LogicalPlan) extends Abstr
protected val AS = Keyword("AS")
protected val CACHE = Keyword("CACHE")
protected val CLEAR = Keyword("CLEAR")
+ protected val CONF = Keyword("CONF")
--- End diff --
I saw the following comments in the `SetCommand`:
```
// Queries all key-value pairs that are set in the SQLConf of the
sqlContext.
// Notice that different from Hive, here "SET -v" is an alias of "SET".
// (In Hive, "SET" returns all changed properties while "SET -v"
returns all properties.)
case Some(("-v", None)) | None =>
sqlContext.getAllConfs.map { case (k, v) => Row(s"$k=$v") }.toSeq
```
How about using `SET -v` to display all configurations?
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