[SPARK-35408] Improve parameter validation in DataFrame.show

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.1
• Fix Version/s: 3.2.0
• Component/s: PySpark
• Assignee: Gera Shegalov
• Reporter: Gera Shegalov
• Created: 15/May/21 05:50
• Updated: 12/Dec/22 18:10
• Resolved: 17/May/21 07:23

Description

Being more used to Scala API the user may  be tempted to call  

df.show(False)

in PySparkl and she will receive an error message that does not easily map to the user code 

py4j.Py4JException: Method showString([class java.lang.Boolean, class java.lang.Integer, class java.lang.Boolean]) does not exist
	at py4j.reflection.ReflectionEngine.getMethod(ReflectionEngine.java:318)
	at py4j.reflection.ReflectionEngine.getMethod(ReflectionEngine.java:326)
	at py4j.Gateway.invoke(Gateway.java:274)
	at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
	at py4j.commands.CallCommand.execute(CallCommand.java:79)
	at py4j.GatewayConnection.run(GatewayConnection.java:238)
	at java.lang.Thread.run(Thread.java:748

Issue Links

• links to: [Github] Pull Request #32555 (gerashegalov)
• links to: [Github] Pull Request #32598 (HyukjinKwon)