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Pig Stack Trace
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ERROR 2043: Unexpected error during execution.

org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias C
	at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1626)
	at org.apache.pig.PigServer.registerQuery(PigServer.java:569)
	at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1032)
	at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:499)
	at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:194)
	at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:170)
	at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:69)
	at org.apache.pig.Main.run(Main.java:543)
	at org.apache.pig.Main.main(Main.java:158)
Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 2043: Unexpected error during execution.
	at org.apache.pig.PigServer.launchPlan(PigServer.java:1339)
	at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:1310)
	at org.apache.pig.PigServer.execute(PigServer.java:1300)
	at org.apache.pig.PigServer.access$400(PigServer.java:127)
	at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1621)
	... 8 more
Caused by: java.lang.IllegalArgumentException: Spork unsupported PhysicalOperator: (Name: C: SkewedJoin[tuple] - scope-46 Operator Key: scope-46)
	at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.physicalToRDD(SparkLauncher.java:212)
	at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.physicalToRDD(SparkLauncher.java:205)
	at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.launchPig(SparkLauncher.java:125)
	at org.apache.pig.PigServer.launchPlan(PigServer.java:1328)
	... 12 more
================================================================================
Pig Stack Trace
---------------
ERROR 2043: Unexpected error during execution.

org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1002: Unable to store alias C
	at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1626)
	at org.apache.pig.PigServer.registerQuery(PigServer.java:569)
	at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:1032)
	at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:499)
	at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:194)
	at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:170)
	at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:69)
	at org.apache.pig.Main.run(Main.java:543)
	at org.apache.pig.Main.main(Main.java:158)
Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 2043: Unexpected error during execution.
	at org.apache.pig.PigServer.launchPlan(PigServer.java:1339)
	at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:1310)
	at org.apache.pig.PigServer.execute(PigServer.java:1300)
	at org.apache.pig.PigServer.access$400(PigServer.java:127)
	at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1621)
	... 8 more
Caused by: java.lang.IllegalArgumentException: Spork unsupported PhysicalOperator: (Name: C: SkewedJoin[tuple] - scope-94 Operator Key: scope-94)
	at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.physicalToRDD(SparkLauncher.java:212)
	at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.physicalToRDD(SparkLauncher.java:205)
	at org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.launchPig(SparkLauncher.java:125)
	at org.apache.pig.PigServer.launchPlan(PigServer.java:1328)
	... 12 more
================================================================================