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https://reviews.apache.org/r/15361/
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Review request for hive and Ashutosh Chauhan.
Bugs: hive-5784
https://issues.apache.org/jira/browse/hive-5784
Repository: hive-git
Description
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The following queries fails:
select b.key, count(*) from src b group by key
select key, count(*) from src b group by b.key
with a SemanticException; the select expression b.key (key in the 2nd query)
are not resolved by the GBy RowResolver.
This is because the GBy RowResolver only supports resolving based on an
AST.toStringTree match. Underlying issue is that a RowResolver doesn't allow
multiple mappings to the same ColumnInfo.
Diffs
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ql/src/java/org/apache/hadoop/hive/ql/parse/RowResolver.java 908546e
ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java 5305537
ql/src/test/queries/clientpositive/groupby_resolution.q PRE-CREATION
ql/src/test/results/clientpositive/groupby_resolution.q.out PRE-CREATION
Diff: https://reviews.apache.org/r/15361/diff/
Testing
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added test groupby_resolution.q
Thanks,
Harish Butani
