Github user rxin commented on a diff in the pull request: https://github.com/apache/spark/pull/10423#discussion_r48224112 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/misc.scala --- @@ -30,6 +30,9 @@ import org.apache.spark.unsafe.types.UTF8String * A function that calculates an MD5 128-bit checksum and returns it as a hex string * For input of type [[BinaryType]] */ +@ExpressionDescription( + usage = "_FUNC_(input) - Returns an MD5 128-bit checksum as a hex string of the input", + extended = "> SELECT _FUNC_('SparkSql');\n '49df15ea9f84f6fcf94f2823bf3f861e'") --- End diff -- I'd prefer to just use "Spark".
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