[GitHub] [beam] AlikRodriguez commented on a change in pull request #15833: [WIP] BEAM-12561 method truncate on series and dataframe

[GitBox <gi...@apache.org>]

AlikRodriguez commented on a change in pull request #15833:
URL: https://github.com/apache/beam/pull/15833#discussion_r745821826



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File path: sdks/python/apache_beam/dataframe/frames.py
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@@ -922,6 +922,19 @@ def mask(self, cond, **kwargs):
     """mask is not parallelizable when ``errors="ignore"`` is specified."""
     return self.where(~cond, **kwargs)
 
+  @frame_base.with_docs_from(pd.DataFrame)
+  @frame_base.args_to_kwargs(pd.DataFrame)
+  @frame_base.populate_defaults(pd.DataFrame)
+  def truncate(self, before, after, axis):
+    return frame_base.DeferredFrame.wrap(
+        expressions.ComputedExpression(
+            'truncate',
+            lambda df: df.truncate(before=before, after=after, axis=axis),
+            [self._expr],
+            requires_partition_by=partitionings.Arbitrary(),
+            preserves_partition_by=partitionings.Arbitrary()
+            if axis in (1, 'columns') else partitionings.Singleton()))

Review comment:
       Oh sorry I didn't have issues, I was testing and forgot to change it.  




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