liuyongvs commented on code in PR #15797:
URL: https://github.com/apache/flink/pull/15797#discussion_r1118541047
##########
flink-python/pyflink/table/expression.py:
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@@ -1487,6 +1487,24 @@ def array_distinct(self) -> 'Expression':
"""
return _binary_op("arrayDistinct")(self)
+ @property
+ def map_keys(self) -> 'Expression':
+ """
+ Returns the keys of the map as array.
+
Review Comment:
same comments Ditto add unorder
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