davidradl commented on code in PR #28688:
URL: https://github.com/apache/flink/pull/28688#discussion_r3571221521
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flink-python/pyflink/table/expression.py:
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@@ -2257,6 +2257,23 @@ def json_unquote(self) -> 'Expression':
"""
return _unary_op("jsonUnquote")(self)
+ def json_length(self, path = None) -> 'Expression':
Review Comment:
It seems that many databases throw an error, I am curious why we are not
throwing an error. Also I see that there are best practises that we should
document like using `IF(string_column IS JSON,` to protect against non json and
avoid potential errors.
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