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### _Why are the changes needed?_
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add udf system_user.
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible
- [ ] Add screenshots for manual tests if appropriate
- [ ] [Run test](https://kyuubi.readthedocs.io/en/latest/tools/testing.html#running-tests) locally before make a pull request
Closes#758 from zhaomin1423/661_add-system_user.
Closes#758
70eba56a [Min Zhao] update system user name
f5edc621 [Min Zhao] [KYUUBI 661] Add UDF system_user
Authored-by: Min Zhao <zhaomin1423@163.com>
Signed-off-by: Kent Yao <yao@apache.org>
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### _Why are the changes needed?_
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fix wrong hint in test for update doc
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible
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Closes#827 from zhaomin1423/kyuubi_749.
Closes#749
a2b10247 [Min Zhao] fix wrong hint in test for update doc
Authored-by: Min Zhao <zhaomin1423@163.com>
Signed-off-by: Kent Yao <yao@apache.org>
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### _Why are the changes needed?_
In this PR, I propose to add kyuubi_version as a user-defined function.
This is also a good example to add other new functions that needed in the Kyuubi system.
### _How was this patch tested?_
- [x] Add some test cases that check the changes thoroughly including negative and positive cases if possible
- [ ] Add screenshots for manual tests if appropriate
- [x] [Run test](https://kyuubi.readthedocs.io/en/latest/tools/testing.html#running-tests) locally before make a pull request
Closes#686 from yaooqinn/657.
Closes#657
d30ac8f6 [Kent Yao] [KYUUBI #657] Add udf kyuubi_version
e1e585e9 [Kent Yao] [KYUUBI #657] Add udf kyuubi_version
Authored-by: Kent Yao <yao@apache.org>
Signed-off-by: Cheng Pan <379377944@qq.com>
