[PIG-1462] No informative error message on parse problem

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.7.0
• Fix Version/s: 0.9.0
• Assignee: Xuefu Zhang
• Reporter: Ankur Bansal
• Created: 23/Jun/10 04:30
• Updated: 04/Aug/11 00:34
• Resolved: 10/Mar/11 19:12

Description

Consider the following script

in = load 'data' using PigStorage() as (m:map[]);
tags = foreach in generate m#'k1' as (tagtuple: tuple(chararray));
dump tags;

This throws the following error message that does not really say that this is a bad declaration

org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1000: Error during parsing. Encountered "" at line 2, column 38.
Was expecting one of:

at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1170)
at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1114)
at org.apache.pig.PigServer.registerQuery(PigServer.java:425)
at org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:737)
at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:324)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:162)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:138)
at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:89)
at org.apache.pig.Main.main(Main.java:391)

Issue Links

• depends upon: PIG-1618 Switch to new parser generator technology