Github user anabranch commented on a diff in the pull request:
https://github.com/apache/spark/pull/16138#discussion_r90785863
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/functions.scala ---
@@ -2661,12 +2661,30 @@ object functions {
def unix_timestamp(s: Column, p: String): Column = withExpr
{UnixTimestamp(s.expr, Literal(p)) }
/**
+ * Convert time string with given pattern
+ * (see
[http://docs.oracle.com/javase/tutorial/i18n/format/simpleDateFormat.html])
+ * to Unix time stamp (in seconds), return null if fail.
+ * @group datetime_funcs
+ * @since 1.5.0
+ */
+ def to_timestamp(s: Column, p: String): Column = withExpr
{UnixTimestamp(s.expr, Literal(p)) }
--- End diff --
still missing a cast here...
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