column pruning causing failure when foreach has user-specified schema
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Key: PIG-1128
URL: https://issues.apache.org/jira/browse/PIG-1128
Project: Pig
Issue Type: Bug
Affects Versions: 0.6.0, 0.7.0
Reporter: Thejas M Nair
Issue is seen in 0.6.0 and trunk.
grunt> l = load 'dummy.txt' as ( c1 : chararray, c2 : int);
grunt> f1 = foreach l generate c1 as c1 : chararray, c2 as c2 : int, 'CA' as
state : chararray;
grunt> f2 = foreach f1 generate c1 as c1 : chararray;
grunt> explain f2;
2009-12-04 13:11:19,010 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
1022: Type mismatch merging schema prefix. Field Schema: chararray. Other Field
Schema: c2: int
( it does not matter if the new schema has new/different column name - )
grunt>l = load 'dummy.txt' as ( c1 : chararray, c2 : int);
grunt>f1 = foreach l generate c1 as c11 : chararray, c2 as c22 : int, 'CA' as
state : chararray;
grunt>f2 = foreach f1 generate c11 as c111 : chararray;
grunt> explain f2;
2009-12-04 13:13:01,462 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
1022: Type mismatch merging schema prefix. Field Schema: chararray. Other Field
Schema: c22: int
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