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| author | Wenchen Fan <wenchen@databricks.com> | 2016-01-05 10:23:36 -0800 |
|---|---|---|
| committer | Reynold Xin <rxin@databricks.com> | 2016-01-05 10:23:36 -0800 |
| commit | 76768337beec6842660db7522ad15c25ee66d346 (patch) | |
| tree | d58976552a906917b9126712e75a7a2136fbd01c /sql/core | |
| parent | 9a6ba7e2c538124f539b50512a7f95059f81cc16 (diff) | |
| download | spark-76768337beec6842660db7522ad15c25ee66d346.tar.gz spark-76768337beec6842660db7522ad15c25ee66d346.tar.bz2 spark-76768337beec6842660db7522ad15c25ee66d346.zip | |
[SPARK-12480][FOLLOW-UP] use a single column vararg for hash
address comments in #10435
This makes the API easier to use if user programmatically generate the call to hash, and they will get analysis exception if the arguments of hash is empty.
Author: Wenchen Fan <wenchen@databricks.com>
Closes #10588 from cloud-fan/hash.
Diffstat (limited to 'sql/core')
| -rw-r--r-- | sql/core/src/main/scala/org/apache/spark/sql/functions.scala | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/functions.scala b/sql/core/src/main/scala/org/apache/spark/sql/functions.scala index e223e32fd7..1c96f647b6 100644 --- a/sql/core/src/main/scala/org/apache/spark/sql/functions.scala +++ b/sql/core/src/main/scala/org/apache/spark/sql/functions.scala @@ -1820,8 +1820,8 @@ object functions extends LegacyFunctions { * @since 2.0 */ @scala.annotation.varargs - def hash(col: Column, cols: Column*): Column = withExpr { - new Murmur3Hash((col +: cols).map(_.expr)) + def hash(cols: Column*): Column = withExpr { + new Murmur3Hash(cols.map(_.expr)) } ////////////////////////////////////////////////////////////////////////////////////////////// |