maropu commented on a change in pull request #28099: [SPARK-31326][SQL][DOCS]
Create Function docs structure for SQL Reference
URL: https://github.com/apache/spark/pull/28099#discussion_r402694648
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File path: docs/sql-ref-functions-builtin.md
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@@ -1,25 +1,26 @@
---
layout: global
-title: Reference
-displayTitle: Reference
+title: Built-in Functions
+displayTitle: Built-in Functions
license: |
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
-
+
http://www.apache.org/licenses/LICENSE-2.0
-
+
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
---
-Spark SQL is Apache Spark's module for working with structured data.
-This guide is a reference for Structured Query Language (SQL) for Apache
-Spark. This document describes the SQL constructs supported by Spark in detail
-along with usage examples when applicable.
+Spark SQL defines built-in functions to use, a complete list of which can be
found [here](api/sql/). Among them, Spark SQL has several special categories of
built-in functions: [Aggregate
Functions](sql-ref-functions-builtin-aggregate.html) to operate on a group of
rows, [Array Functions](sql-ref-functions-builtin-array.html) to operate on
Array columns, and [Date and Time
Functions](sql-ref-functions-builtin-date-time.html) to operate on Date and
Time.
Review comment:
You mean that just the link to the full bulitin method list is not enough?
What are you planning to describe here about the special three categories? more
examples?
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