Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/13990#discussion_r69392045
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/functions.scala ---
@@ -2471,6 +2471,24 @@ object functions {
def second(e: Column): Column = withExpr { Second(e.expr) }
/**
+ * Extracts key, values from input string using ',' as delimiter1 and
'=' as delimiter2
+ * and creates a new map column.
+ * @group normal_funcs
+ * @since 2.1.0
+ */
+ def str_to_map(e: Column): Column = withExpr { new StringToMap(e.expr) }
--- End diff --
For now let's not register the hive fallback functions here, we will think
about it later.
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