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Posted to issues@spark.apache.org by "Hyukjin Kwon (Jira)" <ji...@apache.org> on 2022/04/11 00:16:00 UTC
[jira] [Resolved] (SPARK-38839) Creating a struct with a float inside
[ https://issues.apache.org/jira/browse/SPARK-38839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hyukjin Kwon resolved SPARK-38839.
----------------------------------
Resolution: Duplicate
> Creating a struct with a float inside
> --------------------------------------
>
> Key: SPARK-38839
> URL: https://issues.apache.org/jira/browse/SPARK-38839
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 3.2.1
> Reporter: Daniel deCordoba
> Priority: Minor
>
> When creating a dataframe using createDataFrame that contains a float inside a struct, the float is set to null. This only happens if using a list of dictionaries as data type, if I use a list of Rows it works fine:
> {code:java}
> data = [{"MyStruct": {"MyInt": 10, "MyFloat": 10.1}, "MyFloat": 10.1}]
> spark.createDataFrame(data).show()
> # +-------+------------------------------+
> # |MyFloat|MyStruct |
> # +-------+------------------------------+
> # |10.1 |{MyInt -> 10, MyFloat -> null}|
> # +-------+------------------------------+
> data = [Row(MyStruct=Row(MyInt=10, MyFloat=10.1), MyFloat=10.1)]
> spark.createDataFrame(data).show()
> # +-------+------------------------------+
> # |MyFloat|MyStruct |
> # +-------+------------------------------+
> # |10.1 |{MyInt -> 10, MyFloat -> 10.1}|
> # +-------+------------------------------+ {code}
> Note MyFloat inside MyStruct is set to null in the first example. Interestingly enough, when I do the same with Row, or if I specify the schema, then this does not happen (second example).
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