[
https://issues.apache.org/jira/browse/PIG-499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12640426#action_12640426
]
Daniel Dai commented on PIG-499:
--------------------------------
Hi, Viraj,
I understand your concern. How about always adding semicolon? I think this
should be the right way. When the grammar is wrong, javacc sometimes complains
sometimes not. Let's just stick to the right way.
> Alias which contains substring "as" causes Parser to throw a syntax error
> -------------------------------------------------------------------------
>
> Key: PIG-499
> URL: https://issues.apache.org/jira/browse/PIG-499
> Project: Pig
> Issue Type: Bug
> Affects Versions: types_branch
> Environment: Hadoop 18
> Reporter: Viraj Bhat
> Assignee: Santhosh Srinivasan
> Fix For: types_branch
>
>
> ---------------------------------------------------------------------------------------
> {code}
> MYDATA = load 'testfile.txt' as (f1, f2, f3, f4, f5);
> MYDATA_PROJECTION = foreach MYDATA generate f3, f5;
> CAST = group MYDATA_PROJECTION by f3;
> RESULT = foreach CAST {
> MYSORTED = ORDER MYDATA_PROJECTION by f5;
> generate flatten(MYSORTED);
> }
> dump RESULT;
> {code}
> ---------------------------------------------------------------------------------------
> The above query throws a syntax error
> java.io.IOException: Encountered "dump" at line 8, column 1.
> Was expecting one of:
> "parallel" ...
> ";" ...
>
> at org.apache.pig.PigServer.parseQuery(PigServer.java:298)
> at org.apache.pig.PigServer.registerQuery(PigServer.java:263)
> at
> org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:439)
> at
> org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:249)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:84)
> at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:64)
> at org.apache.pig.Main.main(Main.java:306)
> Caused by: org.apache.pig.impl.logicalLayer.parser.ParseException:
> Encountered "dump" at line 8, column 1.
> Was expecting one of:
> "parallel" ...
> ";" ...
>
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.generateParseException(QueryParser.java:7763)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.jj_consume_token(QueryParser.java:7640)
> at
> org.apache.pig.impl.logicalLayer.parser.QueryParser.Parse(QueryParser.java:551)
> at
> org.apache.pig.impl.logicalLayer.LogicalPlanBuilder.parse(LogicalPlanBuilder.java:60)
> at org.apache.pig.PigServer.parseQuery(PigServer.java:295)
> ... 6 more
> ---------------------------------------------------------------------------------------
> But now changing this query to:(changing CAST to CST) makes the query execute
> successfully.
> ---------------------------------------------------------------------------------------
> {code}
> MYDATA = load 'testfile.txt' as (f1, f2, f3, f4, f5);
> MYDATA_PROJECTION = foreach MYDATA generate f3, f5;
> CST = group MYDATA_PROJECTION by f3;
> RESULT = foreach CST {
> MYSORTED = ORDER MYDATA_PROJECTION by f5;
> generate flatten(MYSORTED);
> }
> dump RESULT;
> {code}
> ---------------------------------------------------------------------------------------
> I believe this might have been caused due to the patch which resolved issue:
> https://issues.apache.org/jira/browse/PIG-437
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
