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[SPARK-15898][SQL] DataFrameReader.text should return DataFrame
## What changes were proposed in this pull request? We want to maintain API compatibility for DataFrameReader.text, and will introduce a new API called DataFrameReader.textFile which returns Dataset[String]. affected PRs: https://github.com/apache/spark/pull/11731 https://github.com/apache/spark/pull/13104 https://github.com/apache/spark/pull/13184 ## How was this patch tested? N/A Author: Wenchen Fan <wenchen@databricks.com> Closes #13604 from cloud-fan/revert.
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- R/pkg/R/SQLContext.R 4 additions, 3 deletionsR/pkg/R/SQLContext.R
- examples/src/main/java/org/apache/spark/examples/JavaHdfsLR.java 1 addition, 1 deletion...s/src/main/java/org/apache/spark/examples/JavaHdfsLR.java
- examples/src/main/java/org/apache/spark/examples/JavaPageRank.java 1 addition, 1 deletion...src/main/java/org/apache/spark/examples/JavaPageRank.java
- examples/src/main/java/org/apache/spark/examples/JavaWordCount.java 1 addition, 1 deletion...rc/main/java/org/apache/spark/examples/JavaWordCount.java
- examples/src/main/java/org/apache/spark/examples/ml/JavaALSExample.java 1 addition, 1 deletion...ain/java/org/apache/spark/examples/ml/JavaALSExample.java
- examples/src/main/java/org/apache/spark/examples/sql/JavaSparkSQL.java 1 addition, 1 deletion...main/java/org/apache/spark/examples/sql/JavaSparkSQL.java
- examples/src/main/scala/org/apache/spark/examples/SparkHdfsLR.scala 1 addition, 1 deletion...rc/main/scala/org/apache/spark/examples/SparkHdfsLR.scala
- examples/src/main/scala/org/apache/spark/examples/SparkKMeans.scala 1 addition, 1 deletion...rc/main/scala/org/apache/spark/examples/SparkKMeans.scala
- examples/src/main/scala/org/apache/spark/examples/SparkPageRank.scala 1 addition, 1 deletion.../main/scala/org/apache/spark/examples/SparkPageRank.scala
- examples/src/main/scala/org/apache/spark/examples/ml/ALSExample.scala 1 addition, 1 deletion.../main/scala/org/apache/spark/examples/ml/ALSExample.scala
- examples/src/main/scala/org/apache/spark/examples/mllib/RankingMetricsExample.scala 1 addition, 1 deletion...g/apache/spark/examples/mllib/RankingMetricsExample.scala
- python/pyspark/sql/readwriter.py 4 additions, 4 deletionspython/pyspark/sql/readwriter.py
- sql/core/src/main/scala/org/apache/spark/sql/DataFrameReader.scala 24 additions, 7 deletions...src/main/scala/org/apache/spark/sql/DataFrameReader.scala
- sql/core/src/test/java/test/org/apache/spark/sql/JavaDataFrameSuite.java 2 additions, 2 deletions...st/java/test/org/apache/spark/sql/JavaDataFrameSuite.java
- sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/text/TextSuite.scala 10 additions, 10 deletions...ache/spark/sql/execution/datasources/text/TextSuite.scala
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