[spark] branch master updated: [SPARK-45121][CONNECT][PS] Support `Series.empty` for Spark Connect

[ru...@apache.org]

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The following commit(s) were added to refs/heads/master by this push:
     new 5d2d9155d24 [SPARK-45121][CONNECT][PS] Support `Series.empty` for Spark Connect
5d2d9155d24 is described below

commit 5d2d9155d24ea9a466e1868969dccd4ae1ac7278
Author: Haejoon Lee <ha...@databricks.com>
AuthorDate: Tue Sep 12 14:37:52 2023 +0800

    [SPARK-45121][CONNECT][PS] Support `Series.empty` for Spark Connect
    
    ### What changes were proposed in this pull request?
    
    This PR proposes to support Series.empty for Spark Connect by removing JVM dependency.
    
    ### Why are the changes needed?
    
    Increase API coverage for Spark Connect.
    
    ### Does this PR introduce _any_ user-facing change?
    
    `Series.empty` is available on Spark Connect.
    
    ### How was this patch tested?
    
    Added UT.
    
    ### Was this patch authored or co-authored using generative AI tooling?
    
    No.
    
    Closes #42877 from itholic/SPARK-45121.
    
    Authored-by: Haejoon Lee <ha...@databricks.com>
    Signed-off-by: Ruifeng Zheng <ru...@apache.org>
---
 python/pyspark/pandas/base.py                     | 2 +-
 python/pyspark/pandas/tests/series/test_series.py | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/python/pyspark/pandas/base.py b/python/pyspark/pandas/base.py
index 1cb17de89e8..ef0b51f757d 100644
--- a/python/pyspark/pandas/base.py
+++ b/python/pyspark/pandas/base.py
@@ -505,7 +505,7 @@ class IndexOpsMixin(object, metaclass=ABCMeta):
         >>> ps.DataFrame({}, index=list('abc')).index.empty
         False
         """
-        return self._internal.resolved_copy.spark_frame.rdd.isEmpty()
+        return self._internal.resolved_copy.spark_frame.isEmpty()
 
     @property
     def hasnans(self) -> bool:
diff --git a/python/pyspark/pandas/tests/series/test_series.py b/python/pyspark/pandas/tests/series/test_series.py
index 136d905eb49..aa147aa75cf 100644
--- a/python/pyspark/pandas/tests/series/test_series.py
+++ b/python/pyspark/pandas/tests/series/test_series.py
@@ -113,6 +113,8 @@ class SeriesTestsMixin:
             self.assert_eq(ps.from_pandas(pser_a), pser_a)
             self.assert_eq(ps.from_pandas(pser_b), pser_b)
 
+        self.assertTrue(pser_a.empty)
+
     def test_all_null_series(self):
         pser_a = pd.Series([None, None, None], dtype="float64")
         pser_b = pd.Series([None, None, None], dtype="str")


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