e98dfe627c
- The old implicit would convert RDDs directly to DataFrames, and that added too many methods. - toDataFrame -> toDF - Dsl -> functions - implicits moved into SQLContext.implicits - addColumn -> withColumn - renameColumn -> withColumnRenamed Python changes: - toDataFrame -> toDF - Dsl -> functions package - addColumn -> withColumn - renameColumn -> withColumnRenamed - add toDF functions to RDD on SQLContext init - add flatMap to DataFrame Author: Reynold Xin <rxin@databricks.com> Author: Davies Liu <davies@databricks.com> Closes #4556 from rxin/SPARK-5752 and squashes the following commits: 5ef9910 [Reynold Xin] More fix 61d3fca [Reynold Xin] Merge branch 'df5' of github.com:davies/spark into SPARK-5752 ff5832c [Reynold Xin] Fix python 749c675 [Reynold Xin] count(*) fixes. 5806df0 [Reynold Xin] Fix build break again. d941f3d [Reynold Xin] Fixed explode compilation break. fe1267a [Davies Liu] flatMap c4afb8e [Reynold Xin] style d9de47f [Davies Liu] add comment b783994 [Davies Liu] add comment for toDF e2154e5 [Davies Liu] schema() -> schema 3a1004f [Davies Liu] Dsl -> functions, toDF() fb256af [Reynold Xin] - toDataFrame -> toDF - Dsl -> functions - implicits moved into SQLContext.implicits - addColumn -> withColumn - renameColumn -> withColumnRenamed 0dd74eb [Reynold Xin] [SPARK-5752][SQL] Don't implicitly convert RDDs directly to DataFrames 97dd47c [Davies Liu] fix mistake 6168f74 [Davies Liu] fix test 1fc0199 [Davies Liu] fix test a075cd5 [Davies Liu] clean up, toPandas 663d314 [Davies Liu] add test for agg('*') 9e214d5 [Reynold Xin] count(*) fixes. 1ed7136 [Reynold Xin] Fix build break again. 921b2e3 [Reynold Xin] Fixed explode compilation break. 14698d4 [Davies Liu] flatMap ba3e12d [Reynold Xin] style d08c92d [Davies Liu] add comment 5c8b524 [Davies Liu] add comment for toDF a4e5e66 [Davies Liu] schema() -> schema d377fc9 [Davies Liu] Dsl -> functions, toDF() 6b3086c [Reynold Xin] - toDataFrame -> toDF - Dsl -> functions - implicits moved into SQLContext.implicits - addColumn -> withColumn - renameColumn -> withColumnRenamed 807e8b1 [Reynold Xin] [SPARK-5752][SQL] Don't implicitly convert RDDs directly to DataFrames
42 lines
1.5 KiB
Python
42 lines
1.5 KiB
Python
#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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"""
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public classes of Spark SQL:
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- L{SQLContext}
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Main entry point for SQL functionality.
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- L{DataFrame}
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A Resilient Distributed Dataset (RDD) with Schema information for the data contained. In
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addition to normal RDD operations, DataFrames also support SQL.
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- L{GroupedData}
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- L{Column}
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Column is a DataFrame with a single column.
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- L{Row}
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A Row of data returned by a Spark SQL query.
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- L{HiveContext}
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Main entry point for accessing data stored in Apache Hive..
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"""
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from pyspark.sql.context import SQLContext, HiveContext
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from pyspark.sql.types import Row
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from pyspark.sql.dataframe import DataFrame, GroupedData, Column, SchemaRDD
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__all__ = [
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'SQLContext', 'HiveContext', 'DataFrame', 'GroupedData', 'Column', 'Row',
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]
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