dianfu commented on a change in pull request #11374: [FLINK-16524][python]
Optimize the result of FlattenRowCoder and ArrowCoder to generator to eliminate
unnecessary function calls
URL: https://github.com/apache/flink/pull/11374#discussion_r392020113
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File path: flink-python/pyflink/fn_execution/coders.py
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@@ -414,6 +415,25 @@ def __repr__(self):
return 'ArrowCoder[%s]' % self._schema
+class CustomLengthPrefixCoder(LengthPrefixCoder):
+ """
+ CustomLengthPrefixCoder will replace LengthPrefixCoder in Beam for
performance optimization.
Review comment:
Update the comment as following?
`
Coder which doesn't prefix the length of the encoded object as the length
prefix will be handled by the wrapped value coder.
`
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