GitHub user wangyum opened a pull request:
https://github.com/apache/spark/pull/19231
[SPARK-22002][SQL] Read JDBC table use custom schema support specify
partial fields.
## What changes were proposed in this pull request?
https://github.com/apache/spark/pull/18266 add a new feature to support
read JDBC table use custom schema, but we must specify all the fields. For
simplicity, this PR support specify partial fields.
## How was this patch tested?
unit tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/wangyum/spark SPARK-22002
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19231.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 #19231
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commit 9e7a8a471835d5e93a729c15d166451e79567447
Author: Yuming Wang <wgy...@gmail.com>
Date: 2017-09-14T04:26:46Z
Read JDBC table use custom schema support specify partial fields.
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