GitHub user wangyum opened a pull request:
https://github.com/apache/spark/pull/14377
[SPARK-16625][SQL] General data types to be mapped to Oracle
## What changes were proposed in this pull request?
Spark will convert **BooleanType** to **BIT(1)**, **LongType** to
**BIGINT**, **ByteType** to **BYTE** when saving DataFrame to Oracle, but
Oracle does not support BIT, BIGINT and BYTE types.
This PR is convert following _Spark Types_ to _Oracle types_ refer to
[Oracle Developer's Guide](https://docs.oracle.com/cd/E19501-01/819-3659/gcmaz/)
Spark Type | Oracle
----|----
BooleanType | NUMBER(1)
IntegerType | NUMBER(10)
LongType | NUMBER(19)
FloatType | NUMBER(19, 4)
DoubleType | NUMBER(19, 4)
ByteType | NUMBER(3)
ShortType | NUMBER(5)
## How was this patch tested?
Add new tests in
[JDBCSuite.scala](https://github.com/wangyum/spark/commit/22b0c2a4228cb8b5098ad741ddf4d1904e745ff6#diff-dc4b58851b084b274df6fe6b189db84d)
and
[OracleDialect.scala](https://github.com/wangyum/spark/commit/22b0c2a4228cb8b5098ad741ddf4d1904e745ff6#diff-5e0cadf526662f9281aa26315b3750ad)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/wangyum/spark SPARK-16625
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14377.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 #14377
----
commit 22b0c2a4228cb8b5098ad741ddf4d1904e745ff6
Author: Yuming Wang <[email protected]>
Date: 2016-07-27T06:33:10Z
General data types to be mapped to Oracle
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