maropu commented on pull request #28593:
URL: https://github.com/apache/spark/pull/28593#issuecomment-636535933
You need to check the Console Output directly;
```
**********************************************************************
File
"/home/jenkins/workspace/SparkPullRequestBuilder@2/python/pyspark/sql/dataframe.py",
line 524, in pyspark.sql.dataframe.DataFrame.withWatermark
Failed example:
sdf.select('name', sdf.time.cast('timestamp')).withWatermark('time', '10
minutes')
Exception raised:
Traceback (most recent call last):
File "/usr/lib64/pypy-2.5.1/lib-python/2.7/doctest.py", line 1315, in
__run
compileflags, 1) in test.globs
File "<doctest pyspark.sql.dataframe.DataFrame.withWatermark[0]>",
line 1, in <module>
sdf.select('name', sdf.time.cast('timestamp')).withWatermark('time',
'10 minutes')
File
"/home/jenkins/workspace/SparkPullRequestBuilder@2/python/pyspark/sql/dataframe.py",
line 1408, in select
jdf = self._jdf.select(self._jcols(*cols))
File
"/home/jenkins/workspace/SparkPullRequestBuilder@2/python/lib/py4j-0.10.9-src.zip/py4j/java_gateway.py",
line 1305, in __call__
answer, self.gateway_client, self.target_id, self.name)
File
"/home/jenkins/workspace/SparkPullRequestBuilder@2/python/pyspark/sql/utils.py",
line 102, in deco
raise converted
AnalysisException: cannot resolve 'CAST(`time` AS TIMESTAMP)' due to
data type mismatch: cannot cast bigint to timestamp,you can enable the casting
by setting spark.sql.legacy.allowCastNumericToTimestamp to true,but we strongly
recommand using function TIMESTAMP_SECONDS/TIMESTAMP_MILLIS/TIMESTAMP_MICROS
instead.;;
'Project [name#24, unresolvedalias(cast(time#25L as timestamp), None)]
+- LogicalRDD [name#24, time#25L], false
**********************************************************************
1 of 1 in pyspark.sql.dataframe.DataFrame.withWatermark
***Test Failed*** 1 failures.
```
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