je-ik commented on a change in pull request #15550:
URL: https://github.com/apache/beam/pull/15550#discussion_r715410037
##########
File path:
sdks/python/apache_beam/runners/portability/fn_api_runner/translations.py
##########
@@ -357,12 +357,29 @@ def wrapper(self, *args):
class TransformContext(object):
- _KNOWN_CODER_URNS = set(
+ _COMMON_CODER_URNS = set(
value.urn for (key, value) in common_urns.coders.__dict__.items()
if not key.startswith('_')
# Length prefix Rows rather than re-coding them.
) - set([common_urns.coders.ROW.urn])
+ _REQUIRED_CODER_URNS = set([
+ common_urns.coders.WINDOWED_VALUE.urn,
+ # For impulse.
+ common_urns.coders.BYTES.urn,
+ common_urns.coders.GLOBAL_WINDOW.urn,
+ # For GBK.
+ common_urns.coders.KV.urn,
+ common_urns.coders.ITERABLE.urn,
+ # For SDF.
+ common_urns.coders.DOUBLE.urn,
Review comment:
Alright, at the end, this is essentially the same case as with KV and
Iterable for GBK.
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