Pig Stack Trace
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ERROR 1200: Pig script failed to parse:
<line 14, column 23> Invalid scalar projection: C : A column needs to be projected from a relation for it to be used as a scalar
Failed to parse: Pig script failed to parse:
<line 14, column 23> Invalid scalar projection: C : A column needs to be projected from a relation for it to be used as a scalar
at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:183)
at org.apache.pig.PigServer$Graph.validateQuery(PigServer.java:1565)
at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1538)
at org.apache.pig.PigServer.registerQuery(PigServer.java:540)
at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:970)
at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:386)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:189)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:165)
at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:69)
at org.apache.pig.Main.run(Main.java:490)
at org.apache.pig.Main.main(Main.java:111)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:208)
Caused by:
<line 14, column 23> Invalid scalar projection: C : A column needs to be projected from a relation for it to be used as a scalar
at org.apache.pig.parser.LogicalPlanGenerator.var_expr(LogicalPlanGenerator.java:8764)
at org.apache.pig.parser.LogicalPlanGenerator.expr(LogicalPlanGenerator.java:7984)
at org.apache.pig.parser.LogicalPlanGenerator.real_arg(LogicalPlanGenerator.java:7443)
at org.apache.pig.parser.LogicalPlanGenerator.func_eval(LogicalPlanGenerator.java:7287)
at org.apache.pig.parser.LogicalPlanGenerator.projectable_expr(LogicalPlanGenerator.java:8857)
at org.apache.pig.parser.LogicalPlanGenerator.var_expr(LogicalPlanGenerator.java:8632)
at org.apache.pig.parser.LogicalPlanGenerator.expr(LogicalPlanGenerator.java:7984)
at org.apache.pig.parser.LogicalPlanGenerator.cond(LogicalPlanGenerator.java:7016)
at org.apache.pig.parser.LogicalPlanGenerator.filter_clause(LogicalPlanGenerator.java:6344)
at org.apache.pig.parser.LogicalPlanGenerator.op_clause(LogicalPlanGenerator.java:1357)
at org.apache.pig.parser.LogicalPlanGenerator.general_statement(LogicalPlanGenerator.java:789)
at org.apache.pig.parser.LogicalPlanGenerator.statement(LogicalPlanGenerator.java:507)
at org.apache.pig.parser.LogicalPlanGenerator.query(LogicalPlanGenerator.java:382)
at org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:176)
... 15 more
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