yifanmai commented on a change in pull request #13177:
URL: https://github.com/apache/beam/pull/13177#discussion_r511169718
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File path:
sdks/python/apache_beam/runners/portability/fn_api_runner/translations.py
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@@ -1702,13 +1702,26 @@ def sort_stages(stages, pipeline_context):
seen = set() # type: Set[Stage]
ordered = []
+ producers = {
+ pcoll: stage
+ for stage in all_stages for t in stage.transforms
Review comment:
Do we need to traverse into sub-transforms to fetch their inputs, or are
we guaranteed that all transforms are leaf transforms?
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