Github user dongjoon-hyun commented on the pull request:
https://github.com/apache/spark/pull/12175#issuecomment-205902962
Hi, @srowen . I minimized the change on master.
* Undo the changes on `common` module.
* Implement `initCap` by the following changes.
```
override def nullSafeEval(string: Any): Any = {
- string.asInstanceOf[UTF8String].toTitleCase
+ string.asInstanceOf[UTF8String].toLowerCase.toTitleCase
}
override def genCode(ctx: CodegenContext, ev: ExprCode): String = {
- defineCodeGen(ctx, ev, str => s"$str.toTitleCase()")
+ defineCodeGen(ctx, ev, str => s"$str.toLowerCase().toTitleCase()")
}
```
I think it's enough for `initCap` function as a small fix for now. How do
you think about this?
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