GitHub user HyukjinKwon opened a pull request:
https://github.com/apache/spark/pull/14323
[SPARK-16675][SQL] Avoid per-record type dispatch in JDBC when writing
## What changes were proposed in this pull request?
Currently, `JdbcUtils.savePartition` is doing type-based dispatch for each
row to write appropriate values.
So, appropriate setters for `PreparedStatement` can be created first
according to the schema, and then apply them to each row. This approach is
similar with `CatalystWriteSupport`.
This PR simply make the setters to avoid this.
## How was this patch tested?
Existing tests should cover this.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/HyukjinKwon/spark SPARK-16675
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14323.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 #14323
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commit 4284d4621104c3badcb743d908e48f283130b186
Author: hyukjinkwon <[email protected]>
Date: 2016-07-23T02:59:25Z
[SPARK-16675][SQL] Avoid per-record type dispatch in JDBC when writing
commit 8cac7dec9b1b999d3c5aa8ecf2086c40078ea4d9
Author: hyukjinkwon <[email protected]>
Date: 2016-07-23T03:01:16Z
Fix comment
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