Haejoon Lee created SPARK-49041:
-----------------------------------
Summary: Raise proper error for dropDuplicates when wrong subset
is given
Key: SPARK-49041
URL: https://issues.apache.org/jira/browse/SPARK-49041
Project: Spark
Issue Type: Bug
Components: PySpark
Affects Versions: 4.0.0
Reporter: Haejoon Lee
Currently dropDuplicates raise unrelated internal error so we should improve it
{code:java}
>>> df.dropDuplicates(None)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/.../spark/python/pyspark/sql/classic/dataframe.py", line 1249, in
dropDuplicates
jdf = self._jdf.dropDuplicates(self._jseq(subset))
File "/.../spark/python/lib/py4j-0.10.9.7-src.zip/py4j/java_gateway.py", line
1322, in __call__
return_value = get_return_value(
File "/.../spark/python/pyspark/errors/exceptions/captured.py", line 247, in
deco
return f(*a, **kw)
File "/.../spark/python/lib/py4j-0.10.9.7-src.zip/py4j/protocol.py", line
326, in get_return_value
raise Py4JJavaError(
py4j.protocol.Py4JJavaError: An error occurred while calling o56.dropDuplicates.
: org.apache.spark.SparkException: [INTERNAL_ERROR] Undefined error message
parameter for error class: '_LEGACY_ERROR_TEMP_1201', MessageTemplate: Cannot
resolve column name "<colName>" among (<fieldNames>)., Parameters: Map(colName
-> null, fieldNames -> name, age) SQLSTATE: XX000
at org.apache.spark.SparkException$.internalError(SparkException.scala:107)
at
org.apache.spark.ErrorClassesJsonReader.getErrorMessage(ErrorClassesJSONReader.scala:58)
at
org.apache.spark.SparkThrowableHelper$.getMessage(SparkThrowableHelper.scala:56)
at
org.apache.spark.SparkThrowableHelper$.getMessage(SparkThrowableHelper.scala:43)
at org.apache.spark.sql.AnalysisException.<init>(AnalysisException.scala:47)
at org.apache.spark.sql.AnalysisException.<init>(AnalysisException.scala:82)
at
org.apache.spark.sql.errors.QueryCompilationErrors$.cannotResolveColumnNameAmongAttributesError(QueryCompilationErrors.scala:2257)
at
org.apache.spark.sql.Dataset.$anonfun$groupColsFromDropDuplicates$1(Dataset.scala:3267)
at scala.collection.immutable.List.flatMap(List.scala:294)
at scala.collection.immutable.List.flatMap(List.scala:79)
at
org.apache.spark.sql.Dataset.groupColsFromDropDuplicates(Dataset.scala:3261)
at org.apache.spark.sql.Dataset.dropDuplicates(Dataset.scala:3126)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:374)
at py4j.Gateway.invoke(Gateway.java:282)
at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at
py4j.ClientServerConnection.waitForCommands(ClientServerConnection.java:182)
at py4j.ClientServerConnection.run(ClientServerConnection.java:106)
at java.base/java.lang.Thread.run(Thread.java:840)
Caused by: java.lang.IllegalArgumentException: Cannot resolve variable
'colName' (enableSubstitutionInVariables=false).
at
org.apache.commons.text.StringSubstitutor.substitute(StringSubstitutor.java:1535)
at
org.apache.commons.text.StringSubstitutor.substitute(StringSubstitutor.java:1392)
at
org.apache.commons.text.StringSubstitutor.replace(StringSubstitutor.java:896)
at
org.apache.spark.ErrorClassesJsonReader.getErrorMessage(ErrorClassesJSONReader.scala:53)
... 22 more {code}
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