Davies Liu created SPARK-3592:
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Summary: applySchema to an RDD of Row
Key: SPARK-3592
URL: https://issues.apache.org/jira/browse/SPARK-3592
Project: Spark
Issue Type: Bug
Components: PySpark, SQL
Reporter: Davies Liu
Priority: Critical
Right now, we can not appy schema to a RDD of Row, this should be a Bug,
{code}
>>> srdd = sqlCtx.jsonRDD(sc.parallelize(["""{"a":2}"""]))
>>> sqlCtx.applySchema(srdd.map(lambda x:x), srdd.schema())
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/daviesliu/work/spark/python/pyspark/sql.py", line 1121,
in applySchema
_verify_type(row, schema)
File "/Users/daviesliu/work/spark/python/pyspark/sql.py", line 736,
in _verify_type
% (dataType, type(obj)))
TypeError: StructType(List(StructField(a,IntegerType,true))) can not
accept abject in type <class 'pyspark.sql.Row'>
{code}
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