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https://issues.apache.org/jira/browse/PIG-1927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13011741#comment-13011741
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Daniel Dai commented on PIG-1927:
---------------------------------
Review note: https://reviews.apache.org/r/525/
Patch committed to trunk.
> Dereference partial name failed
> -------------------------------
>
> Key: PIG-1927
> URL: https://issues.apache.org/jira/browse/PIG-1927
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.9.0
> Reporter: Daniel Dai
> Assignee: Daniel Dai
> Fix For: 0.9.0
>
> Attachments: PIG-1927-1.patch, PIG-1927-2.patch, PIG-1927-3.patch,
> PIG-1927-4.patch
>
>
> The following script fail:
> {code}
> a = load '1.txt' as (a0:int, a1);
> b = group a by a0;
> c = foreach b generate flatten(a);
> d = cogroup c by (a0);
> e = foreach d generate c.a0 as e0;
> f = foreach e generate e0;
> describe f;
> {code}
> Error message:
> Caused by: Failed to generate logical plan. Nested exception:
> org.apache.pig.impl.logicalLayer.FrontendException: ERROR 0: Cannot find
> field a0 in a::a0#17:int,a::a1#18:bytearray
> at
> org.apache.pig.parser.LogicalPlanGenerator.alias_col_ref(LogicalPlanGenerator.java:12835)
> at
> org.apache.pig.parser.LogicalPlanGenerator.col_ref(LogicalPlanGenerator.java:12697)
> at
> org.apache.pig.parser.LogicalPlanGenerator.projectable_expr(LogicalPlanGenerator.java:7715)
> at
> org.apache.pig.parser.LogicalPlanGenerator.var_expr(LogicalPlanGenerator.java:7491)
> at
> org.apache.pig.parser.LogicalPlanGenerator.expr(LogicalPlanGenerator.java:6904)
> at
> org.apache.pig.parser.LogicalPlanGenerator.flatten_generated_item(LogicalPlanGenerator.java:5235)
> at
> org.apache.pig.parser.LogicalPlanGenerator.generate_clause(LogicalPlanGenerator.java:11022)
> at
> org.apache.pig.parser.LogicalPlanGenerator.foreach_plan(LogicalPlanGenerator.java:10789)
> at
> org.apache.pig.parser.LogicalPlanGenerator.foreach_clause(LogicalPlanGenerator.java:10670)
> at
> org.apache.pig.parser.LogicalPlanGenerator.op_clause(LogicalPlanGenerator.java:1280)
> at
> org.apache.pig.parser.LogicalPlanGenerator.general_statement(LogicalPlanGenerator.java:646)
> at
> org.apache.pig.parser.LogicalPlanGenerator.statement(LogicalPlanGenerator.java:467)
> at
> org.apache.pig.parser.LogicalPlanGenerator.query(LogicalPlanGenerator.java:365)
> at
> org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:64)
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