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https://issues.apache.org/jira/browse/SPARK-61121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-61121:
-----------------------------------
Labels: pull-request-available (was: )
> Take a float frame bound past its threshold as unbounded in rowsBetween and
> rangeBetween, in the Python client as PySpark does
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-61121
> URL: https://issues.apache.org/jira/browse/SPARK-61121
> Project: Spark
> Issue Type: Bug
> Components: Connect
> Affects Versions: connect-rust-4.3.0
> Reporter: Hyukjin Kwon
> Priority: Major
> Labels: pull-request-available
> Fix For: connect-rust-4.3.0
>
>
> PySpark's {{WindowSpec.rowsBetween}} and {{rangeBetween}} compare their
> bounds with {{Window._PRECEDING_THRESHOLD}} and
> {{Window._FOLLOWING_THRESHOLD}} before {{WindowFrame}} asserts an int. A
> start at or below the first is unbounded preceding, and an end at or above
> the second is unbounded following, also for a float. So
> {{w.rowsBetween(float("-inf"), float("inf"))}} is a frame of unbounded
> bounds, as Apache Spark's {{test_window_functions}} uses it.
> The Python client raises {{AssertionError}} for any float bound, also an
> infinite one.
> The fix is to take a float bound past its threshold as unbounded, as PySpark
> does, and to raise {{AssertionError}} for other floats.
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