Github user frreiss commented on a diff in the pull request:
https://github.com/apache/spark/pull/10460#discussion_r55738141
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala
---
@@ -889,6 +978,11 @@ case class Decode(bin: Expression, charset: Expression)
* (one of 'US-ASCII', 'ISO-8859-1', 'UTF-8', 'UTF-16BE', 'UTF-16LE',
'UTF-16').
* If either argument is null, the result will also be null.
*/
+@ExpressionDescription(
+ usage = "_FUNC_(string, charset) - Computes the first argument into a
BINARY using " +
+ "the provided charset (one of 'US-ASCII', 'ISO-8859-1', 'UTF-8',
'UTF-16BE', " +
+ "'UTF-16LE', 'UTF-16'). If either argument is null, the result will
also be null.",
+ extended = "> SELECT _FUNC_('SparkSql', 'UTF-8');\n [53 70 61 72 6B 53
71 6C]")
--- End diff --
On my Mac, the query `select Encode('SparkSql', 'UTF-8');` returns the
`SparkSql` in the spark-sql shell.
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