GitHub user mengxr opened a pull request:
https://github.com/apache/spark/pull/22137
[MINOR][DOC][SQL] use one line for annotation arg value
## What changes were proposed in this pull request?
Put annotation args in one line, or API doc generation will fail.
~~~
[error]
/Users/meng/src/spark/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala:1559:
annotation argument needs to be a constant; found: "_FUNC_(expr) - Returns the
character length of string data or number of bytes of ".+("binary data. The
length of string data includes the trailing spaces. The length of binary
").+("data includes binary zeros.")
[error] "binary data. The length of string data includes the trailing
spaces. The length of binary " +
[error]
^
[info] No documentation generated with unsuccessful compiler run
[error] one error found
[error] (catalyst/compile:doc) Scaladoc generation failed
[error] Total time: 27 s, completed Aug 17, 2018 3:20:08 PM
~~~
## How was this patch tested?
sbt catalyst/compile:doc passed
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mengxr/spark minor-doc-fix
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/22137.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #22137
commit e9a93762aeeb219cf9ab600da248a0d1f295d09f
Author: Xiangrui Meng
Date: 2018-08-17T22:47:04Z
fix a minor issue to generate API docs
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