> On April 7, 2015, 4:45 a.m., Swarnim Kulkarni wrote:
> > ql/src/java/org/apache/hadoop/hive/ql/parse/HiveParser.g, line 632
> > <https://reviews.apache.org/r/32809/diff/1/?file=914560#file914560line632>
> >
> >     If you choose to use a String.contains, this could as well be a 
> > character array.

Thanks for your comment. But I assume that char is enough for my purpose.


> On April 7, 2015, 4:45 a.m., Swarnim Kulkarni wrote:
> > ql/src/java/org/apache/hadoop/hive/ql/parse/HiveParser.g, line 634
> > <https://reviews.apache.org/r/32809/diff/1/?file=914560#file914560line634>
> >
> >     Why not simply use string.contains here?

The contains method is implemented using a call to indexOf, so they are 
essentially the same.

public boolean contains(CharSequence s) {
    return indexOf(s.toString()) > -1;
}

But in my case, I just would like to check if a string contains a char, rather 
than a CharSequence. Thus, I think indexOf would be better


> On April 7, 2015, 4:45 a.m., Swarnim Kulkarni wrote:
> > ql/src/java/org/apache/hadoop/hive/ql/parse/HiveParser.g, line 635
> > <https://reviews.apache.org/r/32809/diff/1/?file=914560#file914560line635>
> >
> >     This and the following line can be simplified as 
> >     
> >     return input.indexOf(c);

The purpose of the function is to test whether a string contains a char. The 
actual index is only used to check if it is there, the detailed position 
information is not needed. That is to say, a boolean return value is enough for 
my purpose.


- pengcheng


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/32809/#review79121
-----------------------------------------------------------


On April 3, 2015, 6:24 a.m., pengcheng xiong wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/32809/
> -----------------------------------------------------------
> 
> (Updated April 3, 2015, 6:24 a.m.)
> 
> 
> Review request for hive, Ashutosh Chauhan and John Pullokkaran.
> 
> 
> Repository: hive-git
> 
> 
> Description
> -------
> 
> Since we don't allow users to query column names with dot in the middle such 
> as emp.no, don't allow users to create tables with such columns that cannot 
> be queried. Fix the documentation to reflect this fix.
> 
> 
> Diffs
> -----
> 
>   ql/src/java/org/apache/hadoop/hive/ql/parse/HiveParser.g 2e583da 
>   
> ql/src/test/org/apache/hadoop/hive/ql/parse/TestUnpermittedCharsInColumnNameCreateTableNegative.java
>  PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/32809/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> pengcheng xiong
> 
>

Reply via email to