zhengruifeng opened a new pull request, #52054:
URL: https://github.com/apache/spark/pull/52054
<!--
Thanks for sending a pull request! Here are some tips for you:
1. If this is your first time, please read our contributor guidelines:
https://spark.apache.org/contributing.html
2. Ensure you have added or run the appropriate tests for your PR:
https://spark.apache.org/developer-tools.html
3. If the PR is unfinished, add '[WIP]' in your PR title, e.g.,
'[WIP][SPARK-XXXX] Your PR title ...'.
4. Be sure to keep the PR description updated to reflect all changes.
5. Please write your PR title to summarize what this PR proposes.
6. If possible, provide a concise example to reproduce the issue for a
faster review.
7. If you want to add a new configuration, please read the guideline first
for naming configurations in
'core/src/main/scala/org/apache/spark/internal/config/ConfigEntry.scala'.
8. If you want to add or modify an error type or message, please read the
guideline first in
'common/utils/src/main/resources/error/README.md'.
-->
### What changes were proposed in this pull request?
Differentiate type hints of Pandas UDF and Arrow UDF
### Why are the changes needed?
before the fix, the `@arrow_udf` can works with a pandas udf, and the
`@pandas_udf` can works with a arrow udf
before:
```
In [1]: import pyarrow as pa
...:
...: from pyspark.sql import functions as sf
...: from pyspark.sql.functions import arrow_udf, pandas_udf
...:
...: df = spark.range(10).withColumn("v", sf.col("id") + 1)
...:
...:
...: @pandas_udf("long")
...: def multiply_arrow_func(a: pa.Array, b: pa.Array) -> pa.Array:
...: assert isinstance(a, pa.Array)
...: assert isinstance(b, pa.Array)
...: return pa.compute.multiply(a, b)
...:
...:
In [2]: df.select("id", "v", multiply_arrow_func("id",
"v").alias("m")).show()
...:
+---+---+---+
| id| v| m|
+---+---+---+
| 0| 1| 0|
| 1| 2| 2|
| 2| 3| 6|
| 3| 4| 12|
| 4| 5| 20|
| 5| 6| 30|
| 6| 7| 42|
| 7| 8| 56|
| 8| 9| 72|
| 9| 10| 90|
+---+---+---+
```
after
```
In [2]: ...: @pandas_udf("long")
...: ...: def multiply_arrow_func(a: pa.Array, b: pa.Array) ->
pa.Array:
...: ...: assert isinstance(a, pa.Array)
...: ...: assert isinstance(b, pa.Array)
...: ...: return pa.compute.multiply(a, b)
...:
---------------------------------------------------------------------------
PySparkNotImplementedError Traceback (most recent call last)
...
PySparkNotImplementedError: [UNSUPPORTED_SIGNATURE] Unsupported signature:
(a: pyarrow.lib.Array, b: pyarrow.lib.Array) -> pyarrow.lib.Array.
```
### Does this PR introduce _any_ user-facing change?
no, arrow_udf is not yet released
### How was this patch tested?
new tests
### Was this patch authored or co-authored using generative AI tooling?
no
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
