Github user jihoonson commented on the pull request:
https://github.com/apache/tajo/pull/531#issuecomment-94269856
Hi @charsyam and @blrunner, thanks for your work.
As @charsyam said, ```CHAR``` type can have a variable length. The code in
```Schema::add()``` seems to give a default length for this type. I agree on
that this patch will reduce mistakes because many other codes use
```CatalogUtil.newSimpleDataType()``` directly.
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