zhengruifeng opened a new pull request, #52464:
URL: https://github.com/apache/spark/pull/52464
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### What changes were proposed in this pull request?
Fix serialization of `pyspark.sql.connect.window.WindowSpec`
### Why are the changes needed?
this query fails
```
from pyspark.sql import Window, WindowSpec
from pyspark.sql.functions import *
df = ( spark.readStream.format("rate-micro-batch")
.option("rowsPerBatch", 1000)
.option("numPartitions", 2)
.load()
.withColumn("some_string",lit("apples")) )
window_spec = Window.partitionBy("some_string").orderBy("value")
def get_calculate_row_number_in_batch(window_spec):
def calculate_row_number_in_batch(df, batch_id):
df.withColumn("row_number", row_number().over(window_spec)).show()
return calculate_row_number_in_batch
(df.writeStream
.queryName('streaming_query')
.foreachBatch(get_calculate_row_number_in_batch(window_spec))
.trigger(processingTime='30 seconds')
.start()
)
```
due to
```
TypeError: WindowSpec.__new__() missing 3 required positional arguments:
'partitionSpec', 'orderSpec', and 'frame'
```
### Does this PR introduce _any_ user-facing change?
bug-fix
### How was this patch tested?
added test, and also manually checked above-mentioned query
### Was this patch authored or co-authored using generative AI tooling?
no
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