GitHub user chenghao-intel opened a pull request:
https://github.com/apache/spark/pull/3926
[SPARK-5009][SQL] [WIP] Long keyword support in SQL Parsers
The `SqlLexical.allCaseVersions` will cause `StackOverflowException` if the
key word is too long, the patch will fix that by normalizing all of the
keywords in `SqlLexical`.
PS: This PR includes some commits from #3924 , will be more clean if #3924
merged.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/chenghao-intel/spark long_keyword
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/3926.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 #3926
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commit 958811083783fb7aa8a5b1b93a05cafd0deb4249
Author: Cheng Hao <[email protected]>
Date: 2015-01-07T04:57:12Z
refactor the code of SQLParser relevant code
commit 9218922d71ba6617dba1665461ca32cedb29a554
Author: Cheng Hao <[email protected]>
Date: 2015-01-07T06:05:25Z
adding all cases for keywords in the reserved list
commit 98023a82aef4d5561867f06523a6fd5815ce82b7
Author: Cheng Hao <[email protected]>
Date: 2015-01-07T05:52:44Z
Remove the allCaseVersions function in SQL Parsers
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