Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/14897#discussion_r81463019
--- Diff: docs/sql-programming-guide.md ---
@@ -220,6 +220,40 @@ The `sql` function enables applications to run SQL
queries programmatically and
</div>
+## Global Temporary View
+
+Temporay views in Spark SQL are session-scoped and will disappear if the
session that creates it
+terminates. If you want to have a temporary view that is shared among all
sessions and keep alive
+until the Spark application terminiates, you can create a global temporary
view. Global temporary
+view is tied to a system preserved database `global_temp`, and we must use
the qualified name to
+refer it, e.g. `SELECT * FROM global_temp.view1`.
+
+<div class="codetabs">
+<div data-lang="scala" markdown="1">
+{% include_example global_temp_view
scala/org/apache/spark/examples/sql/SparkSQLExample.scala %}
+</div>
+
+<div data-lang="java" markdown="1">
+{% include_example global_temp_view
java/org/apache/spark/examples/sql/JavaSparkSQLExample.java %}
+</div>
+
+<div data-lang="python" markdown="1">
+{% include_example global_temp_view python/sql/basic.py %}
+</div>
+
+<div data-lang="sql" markdown="1">
+
+{% highlight sql %}
+
+CREATE GLOBAL TEMPORARY VIEW temp_view AS SELECT a + 1, b * 2 FROM tbl
+
+SELECT * FROM global_temp.temp_view
+
+{% endhighlight %}
+
+</div>
--- End diff --
We need one more </div>
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
