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Posted to issues@spark.apache.org by "Michael Armbrust (JIRA)" <ji...@apache.org> on 2015/06/02 01:49:17 UTC
[jira] [Resolved] (SPARK-8022) df.select(df.columnName) no longer
works
[ https://issues.apache.org/jira/browse/SPARK-8022?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Armbrust resolved SPARK-8022.
-------------------------------------
Resolution: Not A Problem
Seems to be environment specific.
> df.select(df.columnName) no longer works
> ----------------------------------------
>
> Key: SPARK-8022
> URL: https://issues.apache.org/jira/browse/SPARK-8022
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.4.0
> Reporter: Michael Armbrust
> Assignee: Davies Liu
> Priority: Blocker
>
> This seems to be a pretty serious regression:
> {code}
> df = sqlContext.load("/home/michael/spark.json", "json")
> df.select(df.committerEmail)
> {code}
> {code}
> ---------------------------------------------------------------------------
> AttributeError Traceback (most recent call last)
> <ipython-input-2-76c71a2870a4> in <module>()
> ----> 1 df.select(df.committerEmail)
> /spark/python/pyspark/sql/dataframe.pyc in select(self, *cols)
> 736 [Row(name=u'Alice', age=12), Row(name=u'Bob', age=15)]
> 737 """
> --> 738 jdf = self._jdf.select(self._jcols(*cols))
> 739 return DataFrame(jdf, self.sql_ctx)
> 740
> /spark/python/pyspark/sql/dataframe.pyc in _jcols(self, *cols)
> 628 if len(cols) == 1 and isinstance(cols[0], list):
> 629 cols = cols[0]
> --> 630 return self._jseq(cols, _to_java_column)
> 631
> 632 @since("1.3.1")
> /spark/python/pyspark/sql/dataframe.pyc in _jseq(self, cols, converter)
> 615 def _jseq(self, cols, converter=None):
> 616 """Return a JVM Seq of Columns from a list of Column or names"""
> --> 617 return _to_seq(self.sql_ctx._sc, cols, converter)
> 618
> 619 def _jmap(self, jm):
> /spark/python/pyspark/sql/column.pyc in _to_seq(sc, cols, converter)
> 58 if converter:
> 59 cols = [converter(c) for c in cols]
> ---> 60 return sc._jvm.PythonUtils.toSeq(cols)
> 61
> 62
> /spark/python/lib/py4j-0.8.2.1-src.zip/py4j/java_gateway.py in __call__(self, *args)
> 527
> 528 args_command = ''.join(
> --> 529 [get_command_part(arg, self.pool) for arg in new_args])
> 530
> 531 command = CALL_COMMAND_NAME +\
> /spark/python/lib/py4j-0.8.2.1-src.zip/py4j/protocol.py in get_command_part(parameter, python_proxy_pool)
> 263 command_part += ';' + interface
> 264 else:
> --> 265 command_part = REFERENCE_TYPE + parameter._get_object_id()
> 266
> 267 command_part += '\n'
> AttributeError: 'list' object has no attribute '_get_object_id'
> {code}
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