zhengruifeng opened a new pull request, #42642:
URL: https://github.com/apache/spark/pull/42642
### What changes were proposed in this pull request?
Correct a function alias
### Why are the changes needed?
it should be `sign`
### Does this PR introduce _any_ user-facing change?
actually no, since `pyspark.sql.connect.function` shares the same namespace
with `pyspark.sql.function`
also manually check
```
Welcome to
____ __
/ __/__ ___ _____/ /__
_\ \/ _ \/ _ `/ __/ '_/
/__ / .__/\_,_/_/ /_/\_\ version 4.0.0.dev0
/_/
Using Python version 3.10.11 (main, May 17 2023 14:30:36)
Client connected to the Spark Connect server at localhost
SparkSession available as 'spark'.
In [1]: from pyspark.sql import functions as sf
In [2]: sf.sign
Out[2]: <function pyspark.sql.functions.signum(col: 'ColumnOrName') ->
pyspark.sql.column.Column>
In [3]: sf.sigh
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
Cell In[3], line 1
----> 1 sf.sigh
AttributeError: module 'pyspark.sql.functions' has no attribute 'sigh'
```
### How was this patch tested?
CI
### Was this patch authored or co-authored using generative AI tooling?
NO
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