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[SPARK-19236][SQL][FOLLOW-UP] Added createOrReplaceGlobalTempView method #18147

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[SPARK-19236][SQL][FOLLOW-UP] Added createOrReplaceGlobalTempView method #18147

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e266bee
fix
gatorsmile May 30, 2017
9191609
fix.
gatorsmile May 31, 2017
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17 changes: 17 additions & 0 deletions python/pyspark/sql/dataframe.py
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Expand Up @@ -191,6 +191,23 @@ def createGlobalTempView(self, name):
"""
self._jdf.createGlobalTempView(name)

@since(2.2)

@cloud-fan cloud-fan May 31, 2017

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we didn't merge the original PR to 2.2 right?

@gatorsmile gatorsmile May 31, 2017

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See the backport PR #18167

def createOrReplaceGlobalTempView(self, name):
"""Creates or replaces a global temporary view using the given name.

The lifetime of this temporary view is tied to this Spark application.

>>> df.createOrReplaceGlobalTempView("people")
>>> df2 = df.filter(df.age > 3)
>>> df2.createOrReplaceGlobalTempView("people")
>>> df3 = spark.sql("select * from people")

@dongjoon-hyun dongjoon-hyun May 30, 2017 •
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df3 = spark.sql("select * from global_temp.people")?

>>> sorted(df3.collect()) == sorted(df2.collect())
True
>>> spark.catalog.dropGlobalTempView("people")

"""
self._jdf.createOrReplaceGlobalTempView(name)

@property
@since(1.4)
def write(self):
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1 change: 1 addition & 0 deletions sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala
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Expand Up @@ -2758,6 +2758,7 @@ class Dataset[T] private[sql](
* view, e.g. `SELECT * FROM _global_temp.view1`.
*
* @group basic
* @since 2.2.0
*/
def createOrReplaceGlobalTempView(viewName: String): Unit = withPlan {
createTempViewCommand(viewName, replace = true, global = true)
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4 changes: 4 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/execution/GlobalTempViewSuite.scala
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Expand Up @@ -68,6 +68,10 @@ class GlobalTempViewSuite extends QueryTest with SharedSQLContext {
// We can also use Catalog API to drop global temp view
spark.catalog.dropGlobalTempView("src2")
intercept[NoSuchTableException](spark.table(s"$globalTempDB.src2"))

// We can also use Dataset API to replace global temp view
Seq(2 -> "b").toDF("i", "j").createOrReplaceGlobalTempView("src")
checkAnswer(spark.table(s"$globalTempDB.src"), Row(2, "b"))
}

test("global temp view is shared among all sessions") {
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