Improvement : for error message when describe misses alias
----------------------------------------------------------
Key: PIG-2181
URL: https://issues.apache.org/jira/browse/PIG-2181
Project: Pig
Issue Type: Bug
Affects Versions: 0.9.0
Reporter: Vivek Padmanabhan
Priority: Minor
In Pig 0.9, if I have a describe without an alias, it throws a
NullPointerException like below.
ERROR 2999: Unexpected internal error. null
java.lang.NullPointerException
at
org.apache.pig.tools.grunt.GruntParser.processDescribe(GruntParser.java:270)
at
org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:317)
at
org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:188)
at
org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:164)
at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:81)
at org.apache.pig.Main.run(Main.java:553)
at org.apache.pig.Main.main(Main.java:108)
For example;
describe;
This message is of no use from a users perspective. Especially when my script
becomes large and I have added couple of describe statements.
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