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https://issues.apache.org/jira/browse/PIG-2086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13038338#comment-13038338
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Thejas M Nair commented on PIG-2086:
------------------------------------
When I substitute com.zzz.Storage() with PigStorage(), it fails in 0.8 as well -
{code}
cat t.pig
IN4 = load '$in' using
PigStorage() as
( inpt:bag{} );
java -Xmx500m -cp pig.jar org.apache.pig.Main -x local -param in=in -c
t.pig
...
2011-05-23 17:51:32,845 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
1000: Error during parsing. Encountered " ";" "; "" at line 3, column 17.
Was expecting one of:
")" ...
"," ...
{code}
> grunt parser fails for: load .. as \n (b:bag{});
> -------------------------------------------------
>
> Key: PIG-2086
> URL: https://issues.apache.org/jira/browse/PIG-2086
> Project: Pig
> Issue Type: Bug
> Components: grunt
> Affects Versions: 0.9.0
> Environment: mac 10.5.8
> Reporter: Woody Anderson
> Fix For: 0.9.0
>
>
> this snippet fails:
> {code}
> IN4 = load '$in' using
> com.zzz.Storage() as
> ( inpt:bag{} );
> {code}
> this works (as on same line as semi-colon)
> {code}
> IN4 = load '$in' using
> com.zzz.Storage()
> as ( inpt:bag{} );
> {code}
> this is the grunt error:
> 2011-05-20 20:19:34,934 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1200: <file loadstore.pig, line 68, column 16> mismatched input ';'
> expecting RIGHT_PAREN
> this only happens in cases where the types of the fields are complex e.g.
> bags/tuples
> eg. change the type of _inpt_ to be _chararray_ and it will parse.
> this is very strange! and i spent hours debugging my schema writing skills
> and reading QueryParser.g before simply trying "as (expr);" on the same line.
> _all_ of my scripts had been written with the lines split the other way (with
> lots of ctor args and as-clause elements: hence the line breaks), this is not
> an issue if i don't load complicated types, but it fails in this particular
> case.
> This is quite unexpected and seems to be undocumented and a bug imho.
> i don't know enough about antlr (i was a javacc person) to make sense of why
> this would be an issue for the parser b/c the grammar looks good assuming
> newline is basically whitespace.
> though i can't figure out how newlines are treated in the grammar, there does
> not seem to be a newline routine ala
> https://supportweb.cs.bham.ac.uk/documentation/tutorials/docsystem/build/tutorials/antlr/antlr.html
> I'm going to assume the grammar author is much more sophisticated than that
> tutorial and knows how to fix this.
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