spark-instrumented-optimizer/docs/sql-ref-syntax-aux-conf-mgmt-reset.md
sharangk c6ca66113f [SPARK-28814][SQL][DOC] Document SET/RESET in SQL Reference
### What changes were proposed in this pull request?
Document SET/REST statement in SQL Reference Guide.

### Why are the changes needed?
Currently Spark lacks documentation on the supported SQL constructs causing
confusion among users who sometimes have to look at the code to understand the
usage. This is aimed at addressing this issue.

### Does this PR introduce any user-facing change?
Yes.

#### Before:
There was no documentation for this.

#### After:

**SET**
![image](https://user-images.githubusercontent.com/29914590/65037551-94a3c680-d96b-11e9-9d59-9f7af5185e06.png)
![image](https://user-images.githubusercontent.com/29914590/64858792-fb607180-d645-11e9-8a53-8cf87a166fc1.png)

**RESET**
![image](https://user-images.githubusercontent.com/29914590/64859019-b12bc000-d646-11e9-8cb4-73dc21830067.png)

### How was this patch tested?
Manual Review and Tested using jykyll build --serve

Closes #25606 from sharangk/resetDoc.

Authored-by: sharangk <sharan.gk@gmail.com>
Signed-off-by: Xiao Li <gatorsmile@gmail.com>
2019-09-17 14:36:56 -07:00

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1.3 KiB
Markdown

---
layout: global
title: RESET
displayTitle: RESET
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.
---
### Description
Reset all the properties specific to the current session to their default values. After RESET command, executing SET command will output empty.
### Syntax
{% highlight sql %}
RESET
{% endhighlight %}
### Examples
{% highlight sql %}
-- Reset all the properties specific to the current session to their default values.
RESET;
{% endhighlight %}
### Related Statements
- [SET](sql-ref-syntax-aux-conf-mgmt-set.html)