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https://issues.apache.org/jira/browse/SPARK-35657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17358228#comment-17358228
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Kevin Su edited comment on SPARK-35657 at 6/6/21, 10:33 PM:
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*spark.createDataFrame,* it doesn't support create from databricks.koalas.
It can only create a DataFrame from an RDD, a list or a pandas.DataFrame.
[https://spark.apache.org/docs/3.1.1/api/python/reference/api/pyspark.sql.SparkSession.createDataFrame.html]
was (Author: pingsutw):
*spark.createDataFrame,* it doesn't support create from databricks.koalas.
It only can create a DataFrame from an RDD, a list or a pandas.DataFrame.
https://spark.apache.org/docs/3.1.1/api/python/reference/api/pyspark.sql.SparkSession.createDataFrame.html
> createDataFrame fails while to_spark works.
> -------------------------------------------
>
> Key: SPARK-35657
> URL: https://issues.apache.org/jira/browse/SPARK-35657
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 3.2.0
> Environment: * Apache Spark 3.2.0-SNAPSHOT (build from source)
> * Python 3.8.10
> * OpenJDK 11.0
> * pandas 1.2.4
> * pyarrow 4.0.1
> Reporter: Yosi Pramajaya
> Priority: Major
>
> Sample code:
> {{kdf = ks.DataFrame({}}
> {{ 'a': [1, 2, 3],}}
> {{ 'b': [2., 3., 4.],}}
> {{ 'c': ['string1', 'string2', 'string3'],}}
> {{ 'd': [date(2000, 1, 1), date(2000, 2, 1), date(2000, 3, 1)],}}
> {{ 'e': [datetime(2000, 1, 1, 12, 0), datetime(2000, 1, 2, 12, 0),
> datetime(2000, 1, 3, 12, 0)]}}
> {{ })}}{{df = kdf.to_spark() # WORKS}}
> {{ df = spark.createDataFrame(kdf) # FAILED}}
> Error:
> {{TypeError: Can not infer schema for type: <class 'str'>}}
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