maropu commented on a change in pull request #24019: [SPARK-27099][SQL] Add
'xxhash64' for hashing arbitrary columns to Long
URL: https://github.com/apache/spark/pull/24019#discussion_r265134944
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File path: sql/core/src/main/scala/org/apache/spark/sql/functions.scala
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@@ -2167,6 +2167,19 @@ object functions {
new Murmur3Hash(cols.map(_.expr))
}
+ /**
+ * Calculates the hash code of given columns using the 64-bit
+ * variant of the xxHash algorithm, and returns the result as a long
+ * column.
+ *
+ * @group misc_funcs
+ * @since 2.4.1
+ */
+ @scala.annotation.varargs
+ def xxhash64(cols: Column*): Column = withExpr {
Review comment:
We don't need `seed` in arguments?
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