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Posted to issues@spark.apache.org by "Ruifeng Zheng (Jira)" <ji...@apache.org> on 2023/01/08 01:17:00 UTC
[jira] [Resolved] (SPARK-41880) Function `from_json` should support non-literal expression
[ https://issues.apache.org/jira/browse/SPARK-41880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ruifeng Zheng resolved SPARK-41880.
-----------------------------------
Fix Version/s: 3.4.0
Resolution: Fixed
Issue resolved by pull request 39444
[https://github.com/apache/spark/pull/39444]
> Function `from_json` should support non-literal expression
> ----------------------------------------------------------
>
> Key: SPARK-41880
> URL: https://issues.apache.org/jira/browse/SPARK-41880
> Project: Spark
> Issue Type: Sub-task
> Components: Connect, PySpark
> Affects Versions: 3.4.0
> Reporter: Ruifeng Zheng
> Assignee: Ruifeng Zheng
> Priority: Major
> Fix For: 3.4.0
>
>
> {code:java}
> File "/Users/ruifeng.zheng/Dev/spark/python/pyspark/sql/connect/functions.py", line 1351, in pyspark.sql.connect.functions.from_json
> Failed example:
> df.select(from_json(df.value, schema).alias("json")).collect()
> Exception raised:
> Traceback (most recent call last):
> File "/Users/ruifeng.zheng/.dev/miniconda3/envs/spark_dev/lib/python3.9/doctest.py", line 1334, in __run
> exec(compile(example.source, filename, "single",
> File "<doctest pyspark.sql.connect.functions.from_json[12]>", line 1, in <module>
> df.select(from_json(df.value, schema).alias("json")).collect()
> File "/Users/ruifeng.zheng/Dev/spark/python/pyspark/sql/connect/dataframe.py", line 1019, in collect
> pdf = self.toPandas()
> File "/Users/ruifeng.zheng/Dev/spark/python/pyspark/sql/connect/dataframe.py", line 1054, in toPandas
> return self._session.client.to_pandas(query)
> File "/Users/ruifeng.zheng/Dev/spark/python/pyspark/sql/connect/client.py", line 413, in to_pandas
> return self._execute_and_fetch(req)
> File "/Users/ruifeng.zheng/Dev/spark/python/pyspark/sql/connect/client.py", line 573, in _execute_and_fetch
> self._handle_error(rpc_error)
> File "/Users/ruifeng.zheng/Dev/spark/python/pyspark/sql/connect/client.py", line 625, in _handle_error
> raise SparkConnectException(status.message) from None
> pyspark.sql.connect.client.SparkConnectException: Schema in from_json should be literal string, but got 'schema_of_json({"a": 0})
> {code}
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