[SPARK-23754][Python] Backport bugfix

.gitignore

@@ -62,6 +62,8 @@ project/plugins/src_managed/
 project/plugins/target/
 python/lib/pyspark.zip
 python/deps
+python/test_coverage/coverage_data
+python/test_coverage/htmlcov
 python/pyspark/python
 reports/
 scalastyle-on-compile.generated.xml
@@ -74,6 +76,7 @@ streaming-tests.log
 target/
 unit-tests.log
 work/
+docs/.jekyll-metadata
 
 # For Hive
 TempStatsStore/

R/pkg/DESCRIPTION

@@ -1,6 +1,6 @@
 Package: SparkR
 Type: Package
-Version: 2.3.0
+Version: 2.4.0
 Title: R Frontend for Apache Spark
 Description: Provides an R Frontend for Apache Spark.
 Authors@R: c(person("Shivaram", "Venkataraman", role = c("aut", "cre"),

R/pkg/NAMESPACE

@@ -151,6 +151,7 @@ exportMethods("arrange",
               "registerTempTable",
               "rename",
               "repartition",
+              "repartitionByRange",
               "rollup",
               "sample",
               "sample_frac",
@@ -179,6 +180,7 @@ exportMethods("arrange",
               "with",
               "withColumn",
               "withColumnRenamed",
+              "withWatermark",
               "write.df",
               "write.jdbc",
               "write.json",
@@ -199,6 +201,9 @@ exportMethods("%<=>%",
               "approxCountDistinct",
               "approxQuantile",
               "array_contains",
+              "array_max",
+              "array_min",
+              "array_position",
               "asc",
               "ascii",
               "asin",
@@ -243,6 +248,7 @@ exportMethods("%<=>%",
               "decode",
               "dense_rank",
               "desc",
+              "element_at",
               "encode",
               "endsWith",
               "exp",
@@ -252,6 +258,7 @@ exportMethods("%<=>%",
               "expr",
               "factorial",
               "first",
+              "flatten",
               "floor",
               "format_number",
               "format_string",