Github user HyukjinKwon commented on the issue: https://github.com/apache/spark/pull/19722 Build started: [SparkR] `ALL` [![PR-19722](https://ci.appveyor.com/api/projects/status/github/spark-test/spark?branch=FCAF9D64-08C7-4199-8986-F2A6DD76A906&svg=true)](https://ci.appveyor.com/project/spark-test/spark/branch/FCAF9D64-08C7-4199-8986-F2A6DD76A906) Build started: [SparkR] `ALL` [![PR-19722](https://ci.appveyor.com/api/projects/status/github/spark-test/spark?branch=930D0519-A427-4D8D-9372-757B31429E45&svg=true)](https://ci.appveyor.com/project/spark-test/spark/branch/930D0519-A427-4D8D-9372-757B31429E45) Build started: [SparkR] `ALL` [![PR-19722](https://ci.appveyor.com/api/projects/status/github/spark-test/spark?branch=F80F59CA-9CC2-4273-82B6-6A0F95724E6A&svg=true)](https://ci.appveyor.com/project/spark-test/spark/branch/F80F59CA-9CC2-4273-82B6-6A0F95724E6A)
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