GitHub user x1- opened a pull request:
https://github.com/apache/spark/pull/7106
[SPARK-8450][SQL]If column type is BigDecimal, the column should be
converted to Decimal.
### abstract
When `createDataFrame` is called(via **PySpark**), `CatalystTypeConverters`
convert `Decimal` to `java.math.BigDecimal`.
see:
https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/CatalystTypeConverters.scala#L71
But, when `write.parque` is called, `MutableRowWriteSupport` force to cast
to `Decimal`.
So, `Exception` occured.
Thus, this PR add method to convert `java.math.BigDecimal` to `Decimal`.
### issue
* [SPARK-8450 PySpark write.parquet raises Unsupported datatype
DecimalType()](https://issues.apache.org/jira/browse/SPARK-8450)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/x1-/spark SPARK-8450
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7106.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 #7106
----
commit 1db8482c6fd88f125821a5b1a89f01301543a804
Author: x1- <[email protected]>
Date: 2015-06-29T11:10:03Z
if instance is BigDecimal, the instance be converted to Decimal.
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