maropu commented on a change in pull request #28196: [SPARK-31428][SQL][DOCS]
Document Common Table Expression in SQL Reference
URL: https://github.com/apache/spark/pull/28196#discussion_r407277312
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File path: docs/sql-ref-syntax-qry-select-cte.md
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@@ -19,4 +19,120 @@ license: |
limitations under the License.
---
-**This page is under construction**
+### Description
+
+A common table expression (CTE) defines a temporary result set that a user can
reference within the duration of a SQL statement. A CTE can be used wherever a
SELECT statement is used; for example, it can be used in a SELECT, INSERT,
UPDATE, DELETE, MERGE or CREATE VIEW statement. A CTE has a name with an
optional column names list, followed by a query expression. When a CTE
references itself, it is called a recursive CTE.
+
+### Syntax
+
+{% highlight sql %}
+WITH common_table_expression [ , ... ]
+{% endhighlight %}
+
+While ```common_table_expression``` is defined as
Review comment:
a single backquote?
https://github.com/apache/spark/blame/master/docs/sql-ref-syntax-qry-select.md#L38
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