[ https://issues.apache.org/jira/browse/PIG-1921?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xuefu Zhang updated PIG-1921: ----------------------------- Attachment: PIG-1921.patch Fix the error message about "schema: null". Scalar error is duplicated with PIG-1788. Other issues mentioned have been fixed already. > Improve error messages in new parser > ------------------------------------ > > Key: PIG-1921 > URL: https://issues.apache.org/jira/browse/PIG-1921 > Project: Pig > Issue Type: Bug > Components: impl > Affects Versions: 0.9.0 > Reporter: Richard Ding > Assignee: Xuefu Zhang > Fix For: 0.9.0 > > Attachments: PIG-1921.patch > > > The new parser gives better error messages than the old parser (especially > with the line numbers). But there are still some places where the error > messages can be improved. > Example: > {code} > ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1025: Invalid field > projection. Projected field [E::v] does not exist in schema: > A::v#28:long,A::u#29:chararray,A::w#30:bytearray,B::v#31:long,B::u#32:chararray,B::w#33:bytearray. > {code} > In this case the #num should be removed from the schema. > Example: > {code} > ERROR org.apache.pig.tools.grunt.Grunt - ERROR 0: line 5:34 mismatched input > [''reg''] expecting set null > {code} > In this case the parser detects the error early and gives the line number, > but missing the reason part from the old parser message: > {code} > ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1000: Error during parsing. > Only COLLECTED, REGULAR or MERGE are valid GROUP modifiers. > {code} > Example: > {code} > grunt> C = join A by v, B by A.t; > 2011-03-18 14:04:38,441 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR > 0: Invalid scalar projection: A > {code} > In this case the real reason is t is not a field of A : {v: int, u:int}. So > the message should be: Invalid scalar projection: A.t > Example: > {code} > C = join A by v, B by B::A.v; > 2011-03-18 14:40:11,590 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR > 1000: Invalid field reference. Referenced field [v] does not exist in schema: > null. > {code} > The message here is not clear and the schema shouldn't be null. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira