HyukjinKwon commented on a change in pull request #33877:
URL: https://github.com/apache/spark/pull/33877#discussion_r703368553
##########
File path: python/pyspark/sql/utils.py
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@@ -210,3 +210,14 @@ def to_str(value):
return value
else:
return str(value)
+
+
+def is_timestamp_ntz_preferred():
Review comment:
We can. I took this out of `SparkSession` because
1. there are some places like `types.py` where some methods can be accessed
without initiating `SparkSession`
2. it doesn't require any properties in `SparkSession` instance
3. some tests fail for `SQLContext` (e.g.,
https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/143016/console)
4. When `SparkContext` or `SparkSession` is stopped, JVM is still supposed
to be alive in PySpark. It's safer to don't assume on `SparkSession`.
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