Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/6970#discussion_r33165752
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/misc.scala
---
@@ -47,4 +48,58 @@ case class Md5(child: Expression)
"org.apache.spark.unsafe.types.UTF8String.fromString" +
s"(org.apache.commons.codec.digest.DigestUtils.md5Hex($c))")
}
+
+}
+
+/**
+ * A function that calculates an SHA-1 digest and returns it as a hex
string
+ * For input of type [[BinaryType]]
+ */
+case class Sha(child: Expression)
--- End diff --
Sha1 may be better
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