huaxingao commented on a change in pull request #28120:
[SPARK-31349][SQL][DOCS] Sql ref buildin-aggregate
URL: https://github.com/apache/spark/pull/28120#discussion_r403644510
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File path: docs/sql-ref-functions-builtin-aggregate.md
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@@ -19,4 +19,626 @@ license: |
limitations under the License.
---
-Aggregate functions
\ No newline at end of file
+Spark SQL provides build-in Aggregate functions defines in dataset API and SQL
interface. Aggregate functions
+operate on a group of rows and return a single value.
+
+Spark SQL Aggregate functions are grouped as <code>agg_funcs</code> in spark
SQL. Below is the list of functions.
+
+**Note:** Every below function has another signature which take String as a
column name instead of Column.
+
+* Table of contents
+{:toc}
+<table class="table">
+ <thead>
+ <tr><th
style="width:25%">Function</th><th>Parameters</th><th>Description</th></tr>
+ </thead>
+ <tbody>
+ <tr>
+ <td> <b>{avg | mean}</b>(<i>e: Column</i>)</td>
Review comment:
Could you list the functions in alphabetical order?
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