[SPARK-21897][PYTHON][R] Add unionByName API to DataFrame in Python a… #151
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…nd R ## What changes were proposed in this pull request? This PR proposes to add a wrapper for `unionByName` API to R and Python as well. **Python** ```python df1 = spark.createDataFrame([[1, 2, 3]], ["col0", "col1", "col2"]) df2 = spark.createDataFrame([[4, 5, 6]], ["col1", "col2", "col0"]) df1.unionByName(df2).show() ``` ``` +----+----+----+ |col0|col1|col3| +----+----+----+ | 1| 2| 3| | 6| 4| 5| +----+----+----+ ``` **R** ```R df1 <- select(createDataFrame(mtcars), "carb", "am", "gear") df2 <- select(createDataFrame(mtcars), "am", "gear", "carb") head(unionByName(limit(df1, 2), limit(df2, 2))) ``` ``` carb am gear 1 4 1 4 2 4 1 4 3 4 1 4 4 4 1 4 ``` ## How was this patch tested? Doctests for Python and unit test added in `test_sparkSQL.R` for R. Author: hyukjinkwon <[email protected]> Closes #19105 from HyukjinKwon/unionByName-r-python.
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…nd R
What changes were proposed in this pull request?
This PR proposes to add a wrapper for
unionByNameAPI to R and Python as well.Python
R
How was this patch tested?
Doctests for Python and unit test added in
test_sparkSQL.Rfor R.Author: hyukjinkwon [email protected]
Closes apache#19105 from HyukjinKwon/unionByName-r-python.
What changes were proposed in this pull request?
(Please fill in changes proposed in this fix)
How was this patch tested?
(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)
(If this patch involves UI changes, please attach a screenshot; otherwise, remove this)
Please review http://spark.apache.org/contributing.html before opening a pull request.