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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2022/06/04 20:43:45 UTC
[GitHub] [beam] damccorm opened a new issue, #20959: Documentation for non-deferred-column operations
damccorm opened a new issue, #20959:
URL: https://github.com/apache/beam/issues/20959
We should have general advice for using non-deferred-column operations with low cardinality columns documented at s.apache.org/dataframe-non-deferred-columns, with examples.
Imported from Jira [BEAM-13949](https://issues.apache.org/jira/browse/BEAM-13949). Original Jira may contain additional context.
Reported by: bhulette.
Subtask of issue #20958
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[GitHub] [beam] TheNeuralBit commented on issue #20959: Documentation for non-deferred-column operations
Posted by GitBox <gi...@apache.org>.
TheNeuralBit commented on issue #20959:
URL: https://github.com/apache/beam/issues/20959#issuecomment-1188158446
This should be linked from error messages, and it should provide examples of how to actually create a CategoricalDtype (manually, and/or by running a pipeline to collect unique values).
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[GitHub] [beam] TheNeuralBit commented on issue #20959: Documentation for non-deferred-column operations
Posted by GitBox <gi...@apache.org>.
TheNeuralBit commented on issue #20959:
URL: https://github.com/apache/beam/issues/20959#issuecomment-1233199259
See here for an exchange on the difficulties of creating a CategoricalDtype: https://github.com/apache/beam/pull/22587/files/fc0af3ac9654701ce43b9e9d9bff651f3e717fdc#r941893216
As part of this work we may also want to add utilities that make this easy.
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