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author | Dongjoon Hyun <dongjoon@apache.org> | 2016-06-30 12:03:54 -0700 |
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committer | Reynold Xin <rxin@databricks.com> | 2016-06-30 12:03:54 -0700 |
commit | 46395db80e3304e3f3a1ebdc8aadb8f2819b48b4 (patch) | |
tree | 88b3c5cc5e5241f0e2b687445a29f88a2aca2c6b /R/pkg/NAMESPACE | |
parent | fdf9f94f8c8861a00cd8415073f842b857c397f7 (diff) | |
download | spark-46395db80e3304e3f3a1ebdc8aadb8f2819b48b4.tar.gz spark-46395db80e3304e3f3a1ebdc8aadb8f2819b48b4.tar.bz2 spark-46395db80e3304e3f3a1ebdc8aadb8f2819b48b4.zip |
[SPARK-16289][SQL] Implement posexplode table generating function
## What changes were proposed in this pull request?
This PR implements `posexplode` table generating function. Currently, master branch raises the following exception for `map` argument. It's different from Hive.
**Before**
```scala
scala> sql("select posexplode(map('a', 1, 'b', 2))").show
org.apache.spark.sql.AnalysisException: No handler for Hive UDF ... posexplode() takes an array as a parameter; line 1 pos 7
```
**After**
```scala
scala> sql("select posexplode(map('a', 1, 'b', 2))").show
+---+---+-----+
|pos|key|value|
+---+---+-----+
| 0| a| 1|
| 1| b| 2|
+---+---+-----+
```
For `array` argument, `after` is the same with `before`.
```
scala> sql("select posexplode(array(1, 2, 3))").show
+---+---+
|pos|col|
+---+---+
| 0| 1|
| 1| 2|
| 2| 3|
+---+---+
```
## How was this patch tested?
Pass the Jenkins tests with newly added testcases.
Author: Dongjoon Hyun <dongjoon@apache.org>
Closes #13971 from dongjoon-hyun/SPARK-16289.
Diffstat (limited to 'R/pkg/NAMESPACE')
-rw-r--r-- | R/pkg/NAMESPACE | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/R/pkg/NAMESPACE b/R/pkg/NAMESPACE index e0ffde922d..abc65887bc 100644 --- a/R/pkg/NAMESPACE +++ b/R/pkg/NAMESPACE @@ -234,6 +234,7 @@ exportMethods("%in%", "over", "percent_rank", "pmod", + "posexplode", "quarter", "rand", "randn", |