HyukjinKwon commented on a change in pull request #32835:
URL: https://github.com/apache/spark/pull/32835#discussion_r648795878



##########
File path: python/docs/source/user_guide/pandas_on_spark/pandas_pyspark.rst
##########
@@ -56,15 +56,15 @@ pandas DataFrame can be a Koalas DataFrame easily as below:
    8   8
    9   9
 
-Note that converting Koalas DataFrame to pandas requires to collect all the 
data into the client machine; therefore,
-if possible, it is recommended to use Koalas or PySpark APIs instead.
+Note that converting pandas APIs on Spark DataFrame to pandas requires to 
collect all the data into the client machine; therefore,
+if possible, it is recommended to use pandas APIs on Spark or PySpark APIs 
instead.
 
 
 PySpark
 -------
 
 PySpark users can access to full PySpark APIs by calling 
:func:`DataFrame.to_spark`.
-Koalas DataFrame and Spark DataFrame are virtually interchangeable.
+Pandas APIs on Spark DataFrame and Spark DataFrame are virtually 
interchangeable.

Review comment:
       pandas-on-Spark DataFrame

##########
File path: python/docs/source/user_guide/pandas_on_spark/pandas_pyspark.rst
##########
@@ -85,7 +85,7 @@ as below:
    |  9|
    +---+
 
-Spark DataFrame can be a Koalas DataFrame easily as below:
+Spark DataFrame can be a pandas APIs on Spark DataFrame easily as below:

Review comment:
       pandas-on-Spark DataFrame

##########
File path: python/docs/source/user_guide/pandas_on_spark/pandas_pyspark.rst
##########
@@ -96,13 +96,13 @@ Spark DataFrame can be a Koalas DataFrame easily as below:
    2   8
    3   9
 
-However, note that it requires to create new default index in case Koalas 
DataFrame is created from
+However, note that it requires to create new default index in case pandas APIs 
on Spark DataFrame is created from

Review comment:
       pandas-on-Spark Dataframe

##########
File path: python/docs/source/user_guide/pandas_on_spark/pandas_pyspark.rst
##########
@@ -96,13 +96,13 @@ Spark DataFrame can be a Koalas DataFrame easily as below:
    2   8
    3   9
 
-However, note that it requires to create new default index in case Koalas 
DataFrame is created from
+However, note that it requires to create new default index in case pandas APIs 
on Spark DataFrame is created from
 Spark DataFrame. See `Default Index Type <options.rst#default-index-type>`_. 
In order to avoid this overhead, specify the column
 to use as an index when possible.
 
 .. code-block:: python
 
-   >>> # Create a Koalas DataFrame with an explicit index.
+   >>> # Create a pandas APIs on Spark DataFrame with an explicit index.

Review comment:
       pandas-on-Spark DataFrame




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