Merge branch 'master' into SPARK-24243

Author: Marcelo Vanzin

.gitignore

@@ -77,7 +77,6 @@ target/
 unit-tests.log
 work/
 docs/.jekyll-metadata
-*.crc
 
 # For Hive
 TempStatsStore/

.travis.yml

@@ -17,7 +17,7 @@ export R_HOME=/home/username/R
 
 #### Build Spark
 
-Build Spark with [Maven](http://spark.apache.org/docs/latest/building-spark.html#building-with-buildmvn) and include the `-Psparkr` profile to build the R package. For example to use the default Hadoop versions you can run
+Build Spark with [Maven](http://spark.apache.org/docs/latest/building-spark.html#buildmvn) and include the `-Psparkr` profile to build the R package. For example to use the default Hadoop versions you can run
 
 ```bash
 build/mvn -DskipTests -Psparkr package

R/README.md

@@ -3,7 +3,7 @@
 To build SparkR on Windows, the following steps are required
 
 1. Install R (>= 3.1) and [Rtools](http://cran.r-project.org/bin/windows/Rtools/). Make sure to
-include Rtools and R in `PATH`.
+include Rtools and R in `PATH`. Note that support for R prior to version 3.4 is deprecated as of Spark 3.0.0.
 
 2. Install
 [JDK8](http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html) and set
@@ -14,7 +14,7 @@ directory in Maven in `PATH`.
 
 4. Set `MAVEN_OPTS` as described in [Building Spark](http://spark.apache.org/docs/latest/building-spark.html).
 
-5. Open a command shell (`cmd`) in the Spark directory and build Spark with [Maven](http://spark.apache.org/docs/latest/building-spark.html#building-with-buildmvn) and include the `-Psparkr` profile to build the R package. For example to use the default Hadoop versions you can run
+5. Open a command shell (`cmd`) in the Spark directory and build Spark with [Maven](http://spark.apache.org/docs/latest/building-spark.html#buildmvn) and include the `-Psparkr` profile to build the R package. For example to use the default Hadoop versions you can run
 
     ```bash
     mvn.cmd -DskipTests -Psparkr package

R/WINDOWS.md

@@ -1,6 +1,6 @@
 Package: SparkR
 Type: Package
-Version: 2.4.0
+Version: 3.0.0
 Title: R Frontend for Apache Spark
 Description: Provides an R Frontend for Apache Spark.
 Authors@R: c(person("Shivaram", "Venkataraman", role = c("aut", "cre"),
@@ -15,7 +15,7 @@ URL: http://www.apache.org/ http://spark.apache.org/
 BugReports: http://spark.apache.org/contributing.html
 SystemRequirements: Java (== 8)
 Depends:
-    R (>= 3.0),
+    R (>= 3.1),
     methods
 Suggests:
     knitr,

R/pkg/DESCRIPTION

@@ -28,9 +28,8 @@ importFrom("utils", "download.file", "object.size", "packageVersion", "tail", "u
 
 # S3 methods exported
 export("sparkR.session")
-export("sparkR.init")
-export("sparkR.stop")
 export("sparkR.session.stop")
+export("sparkR.stop")
 export("sparkR.conf")
 export("sparkR.version")
 export("sparkR.uiWebUrl")
@@ -42,9 +41,6 @@ export("sparkR.callJStatic")
 
 export("install.spark")
 
-export("sparkRSQL.init",
-       "sparkRHive.init")
-
 # MLlib integration
 exportMethods("glm",
               "spark.glm",
@@ -70,7 +66,8 @@ exportMethods("glm",
               "spark.svmLinear",
               "spark.fpGrowth",
               "spark.freqItemsets",
-              "spark.associationRules")
+              "spark.associationRules",
+              "spark.findFrequentSequentialPatterns")
 
 # Job group lifecycle management methods
 export("setJobGroup",
@@ -150,15 +147,13 @@ exportMethods("arrange",
               "printSchema",
               "randomSplit",
               "rbind",
-              "registerTempTable",
               "rename",
               "repartition",
               "repartitionByRange",
               "rollup",
               "sample",
               "sample_frac",
               "sampleBy",
-              "saveAsParquetFile",
               "saveAsTable",
               "saveDF",
               "schema",
@@ -200,10 +195,13 @@ exportMethods("%<=>%",
               "acos",
               "add_months",
               "alias",
+              "approx_count_distinct",
               "approxCountDistinct",
               "approxQuantile",
               "array_contains",
               "array_distinct",
+              "array_except",
+              "array_intersect",
               "array_join",
               "array_max",
               "array_min",
@@ -212,6 +210,7 @@ exportMethods("%<=>%",
               "array_repeat",
               "array_sort",
               "arrays_overlap",
+              "array_union",
               "arrays_zip",
               "asc",
               "ascii",
@@ -255,6 +254,7 @@ exportMethods("%<=>%",
               "dayofweek",
               "dayofyear",
               "decode",
+              "degrees",
               "dense_rank",
               "desc",
               "element_at",
@@ -271,6 +271,7 @@ exportMethods("%<=>%",
               "floor",
               "format_number",
               "format_string",
+              "from_csv",
               "from_json",
               "from_unixtime",
               "from_utc_timestamp",
@@ -336,6 +337,7 @@ exportMethods("%<=>%",
               "posexplode",
               "posexplode_outer",
               "quarter",
+              "radians",
               "rand",
               "randn",
               "rank",
@@ -349,12 +351,15 @@ exportMethods("%<=>%",
               "row_number",
               "rpad",
               "rtrim",
+              "schema_of_csv",
+              "schema_of_json",
               "second",
               "sha1",
               "sha2",
               "shiftLeft",
               "shiftRight",
               "shiftRightUnsigned",
+              "shuffle",
               "sd",
               "sign",
               "signum",
@@ -381,6 +386,7 @@ exportMethods("%<=>%",
               "tanh",
               "toDegrees",
               "toRadians",
+              "to_csv",
               "to_date",
               "to_json",
               "to_timestamp",
@@ -409,18 +415,14 @@ export("as.DataFrame",
        "cacheTable",
        "clearCache",
        "createDataFrame",
-       "createExternalTable",
        "createTable",
        "currentDatabase",
-       "dropTempTable",
        "dropTempView",
-       "jsonFile",
        "listColumns",
        "listDatabases",
        "listFunctions",
        "listTables",
        "loadDF",
-       "parquetFile",
        "read.df",
        "read.jdbc",
        "read.json",