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-rw-r--r--python/pyspark/sql/dataframe.py7
-rw-r--r--python/pyspark/sql/tests.py8
-rw-r--r--sql/core/src/main/scala/org/apache/spark/sql/Column.scala9
-rw-r--r--sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala14
4 files changed, 38 insertions, 0 deletions
diff --git a/python/pyspark/sql/dataframe.py b/python/pyspark/sql/dataframe.py
index 17448b38c3..24f370543d 100644
--- a/python/pyspark/sql/dataframe.py
+++ b/python/pyspark/sql/dataframe.py
@@ -1405,6 +1405,13 @@ class Column(object):
raise TypeError("unexpected type: %s" % type(dataType))
return Column(jc)
+ @ignore_unicode_prefix
+ def between(self, lowerBound, upperBound):
+ """ A boolean expression that is evaluated to true if the value of this
+ expression is between the given columns.
+ """
+ return (self >= lowerBound) & (self <= upperBound)
+
def __repr__(self):
return 'Column<%s>' % self._jc.toString().encode('utf8')
diff --git a/python/pyspark/sql/tests.py b/python/pyspark/sql/tests.py
index 7ea6656d31..46c4c88e98 100644
--- a/python/pyspark/sql/tests.py
+++ b/python/pyspark/sql/tests.py
@@ -453,6 +453,14 @@ class SQLTests(ReusedPySparkTestCase):
for row in rndn:
assert row[1] >= -4.0 and row[1] <= 4.0, "got: %s" % row[1]
+ def test_between_function(self):
+ df = self.sc.parallelize([
+ Row(a=1, b=2, c=3),
+ Row(a=2, b=1, c=3),
+ Row(a=4, b=1, c=4)]).toDF()
+ self.assertEqual([Row(a=2, b=1, c=3), Row(a=4, b=1, c=4)],
+ df.filter(df.a.between(df.b, df.c)).collect())
+
def test_save_and_load(self):
df = self.df
tmpPath = tempfile.mkdtemp()
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/Column.scala b/sql/core/src/main/scala/org/apache/spark/sql/Column.scala
index 33f9d0b37d..c0503bf047 100644
--- a/sql/core/src/main/scala/org/apache/spark/sql/Column.scala
+++ b/sql/core/src/main/scala/org/apache/spark/sql/Column.scala
@@ -296,6 +296,15 @@ class Column(protected[sql] val expr: Expression) extends Logging {
def eqNullSafe(other: Any): Column = this <=> other
/**
+ * True if the current column is between the lower bound and upper bound, inclusive.
+ *
+ * @group java_expr_ops
+ */
+ def between(lowerBound: Any, upperBound: Any): Column = {
+ (this >= lowerBound) && (this <= upperBound)
+ }
+
+ /**
* True if the current expression is null.
*
* @group expr_ops
diff --git a/sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala b/sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala
index 6322faf4d9..3c1ad656fc 100644
--- a/sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala
+++ b/sql/core/src/test/scala/org/apache/spark/sql/ColumnExpressionSuite.scala
@@ -208,6 +208,20 @@ class ColumnExpressionSuite extends QueryTest {
testData2.collect().toSeq.filter(r => r.getInt(0) <= r.getInt(1)))
}
+ test("between") {
+ val testData = TestSQLContext.sparkContext.parallelize(
+ (0, 1, 2) ::
+ (1, 2, 3) ::
+ (2, 1, 0) ::
+ (2, 2, 4) ::
+ (3, 1, 6) ::
+ (3, 2, 0) :: Nil).toDF("a", "b", "c")
+ val expectAnswer = testData.collect().toSeq.
+ filter(r => r.getInt(0) >= r.getInt(1) && r.getInt(0) <= r.getInt(2))
+
+ checkAnswer(testData.filter($"a".between($"b", $"c")), expectAnswer)
+ }
+
val booleanData = TestSQLContext.createDataFrame(TestSQLContext.sparkContext.parallelize(
Row(false, false) ::
Row(false, true) ::