Yin Huai created HIVE-3493:
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Summary: aggName of SemanticAnalyzer.getGenericUDAFEvaluator is
generated in two different ways
Key: HIVE-3493
URL: https://issues.apache.org/jira/browse/HIVE-3493
Project: Hive
Issue Type: Bug
Reporter: Yin Huai
Assignee: Yin Huai
Priority: Minor
aggName in
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.getGenericUDAFEvaluator(String,
ArrayList<ExprNodeDesc>, ASTNode, boolean, boolean) is generated by two
different ways. One is String aggName = value.getChild(0).getText(); and
another is String aggName = unescapeIdentifier(value.getChild(0).getText());.
When a aggregation function is involved in a view, we may get a error.
You can try the query below (from create_view.q) to replay the error.
{code:sql}
set hive.map.aggr=false;
CREATE TEMPORARY FUNCTION test_max AS
'org.apache.hadoop.hive.ql.udf.UDAFTestMax';
CREATE VIEW view9(m) AS
SELECT test_max(length(value))
FROM src;
DESCRIBE EXTENDED view9;
DESCRIBE FORMATTED view9;
SELECT * FROM view9;
{code}
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