GitHub user rxin opened a pull request:
https://github.com/apache/spark/pull/12022
[SPARK-14225][SQL] Cap the length of toCommentSafeString at 128 chars
## What changes were proposed in this pull request?
I just saw a query with over 1000 fields and the generated expression
comment is pages long. At that level printing them no longer gives us much
benefit. We should just cap the length at some level. This patch changes it to
max 128 chars.
## How was this patch tested?
Manually examined the generated code.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/rxin/spark SPARK-14225
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12022.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 #12022
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commit 53164156f66458873913a7f60b5cbcfc2fd2fa98
Author: Reynold Xin <[email protected]>
Date: 2016-03-29T01:01:55Z
[SPARK-14225][SQL] Cap the length of toCommentSafeString at 128 chars
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