[SPARK-42726][CONNECT][PYTHON] Implement DataFrame.mapInArrow
#40350
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xinrong-meng
changed the title
DataFrame.mapInArrowDataFrame.mapInArrow
HyukjinKwon
approved these changes
Mar 9, 2023
Member
|
The test failure seems unrelated. Merged to master and branch-3.4. |
HyukjinKwon
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Mar 10, 2023
### What changes were proposed in this pull request?
Implement `DataFrame.mapInArrow`.
### Why are the changes needed?
Parity with vanilla PySpark.
### Does this PR introduce _any_ user-facing change?
Yes. `DataFrame.mapInArrow` is supported as shown below.
```
>>> import pyarrow
>>> df = spark.createDataFrame([(1, 21), (2, 30)], ("id", "age"))
>>> def filter_func(iterator):
... for batch in iterator:
... pdf = batch.to_pandas()
... yield pyarrow.RecordBatch.from_pandas(pdf[pdf.id == 1])
...
>>> df.mapInArrow(filter_func, df.schema).show()
+---+---+
| id|age|
+---+---+
| 1| 21|
+---+---+
```
### How was this patch tested?
Unit tests.
Closes #40350 from xinrong-meng/mapInArrowImpl.
Authored-by: Xinrong Meng <[email protected]>
Signed-off-by: Hyukjin Kwon <[email protected]>
(cherry picked from commit f35c2cb)
Signed-off-by: Hyukjin Kwon <[email protected]>
Member
Author
|
Thanks @HyukjinKwon ! |
snmvaughan
pushed a commit
to snmvaughan/spark
that referenced
this pull request
Jun 20, 2023
### What changes were proposed in this pull request?
Implement `DataFrame.mapInArrow`.
### Why are the changes needed?
Parity with vanilla PySpark.
### Does this PR introduce _any_ user-facing change?
Yes. `DataFrame.mapInArrow` is supported as shown below.
```
>>> import pyarrow
>>> df = spark.createDataFrame([(1, 21), (2, 30)], ("id", "age"))
>>> def filter_func(iterator):
... for batch in iterator:
... pdf = batch.to_pandas()
... yield pyarrow.RecordBatch.from_pandas(pdf[pdf.id == 1])
...
>>> df.mapInArrow(filter_func, df.schema).show()
+---+---+
| id|age|
+---+---+
| 1| 21|
+---+---+
```
### How was this patch tested?
Unit tests.
Closes apache#40350 from xinrong-meng/mapInArrowImpl.
Authored-by: Xinrong Meng <[email protected]>
Signed-off-by: Hyukjin Kwon <[email protected]>
(cherry picked from commit f35c2cb)
Signed-off-by: Hyukjin Kwon <[email protected]>
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What changes were proposed in this pull request?
Implement
DataFrame.mapInArrow.Why are the changes needed?
Parity with vanilla PySpark.
Does this PR introduce any user-facing change?
Yes.
DataFrame.mapInArrowis supported as shown below.How was this patch tested?
Unit tests.
SPARK-41661