GitHub user rtreffer opened a pull request:
https://github.com/apache/spark/pull/5498
Export driver quirks
Make it possible to (temporary) overwrite the driver quirks. This
can be used to overcome problems with specific schemas or to
add new jdbc driver support on the fly.
A very simple implementation to dump the loading can be done like this
(spark-shell)
```
class DumpQuirk extends org.apache.spark.sql.jdbc.DriverQuirks {
def canHandle(url : String): Boolean = true
def getCatalystType(sqlType: Int, typeName: String, size: Int, md:
org.apache.spark.sql.types.MetadataBuilder):
org.apache.spark.sql.types.DataType = {
println("" + (sqlType, typeName, size, md))
null
}
def getJDBCType(dt: org.apache.spark.sql.types.DataType): (String,
Option[Int]) = (null, None)
}
org.apache.spark.sql.jdbc.DriverQuirks.registerQuirks(new DumpQuirk())
```
Not that this pull request is against 1.3 - I could not create a
distribution with the current master.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/rtreffer/spark export-driver-quirks
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/5498.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 #5498
----
commit dca9372fc32e3222afc25e11394b1e620c115efa
Author: Rene Treffer <[email protected]>
Date: 2015-04-13T21:38:59Z
Export driver quirks
Make it possible to (temporary) overwrite the driver quirks. This
can be used to overcome problems with specific schemas or to
add new jdbc driver support on the fly.
----
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