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From "Will Du (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-9412) Window clause ROW BETWEEN for PRECEDING does not work
Date Mon, 19 Jan 2015 15:53:34 GMT
Will Du created HIVE-9412:
-----------------------------

             Summary: Window clause ROW BETWEEN for PRECEDING does not work
                 Key: HIVE-9412
                 URL: https://issues.apache.org/jira/browse/HIVE-9412
             Project: Hive
          Issue Type: Bug
          Components: Parser
    Affects Versions: 0.13.1, 0.14.0
         Environment: CDH 5.3 or HDP 2.2
            Reporter: Will Du


When window clause with ROWS is used between two proper PRECEDING boundaries, Hive reports
syntax errors as following examples.

--For example 1
SELECT name, dept_num, salary,
MAX(salary) OVER (PARTITION BY dept_num ORDER BY 
name ROWS BETWEEN 2 PRECEDING AND 1 PRECEDING) win4_alter
FROM employee_contract;

Error: Error while compiling statement: FAILED: SemanticException Failed to breakup Windowing
invocations into Groups. At least 1 group must only depend on input columns. Also check for
circular dependencies.
Underlying error: Window range invalid, start boundary is greater than end boundary: window(start=range(2
PRECEDING), end=range(1 PRECEDING)) (state=42000,code=40000)

--For example 2
SELECT name, dept_num, salary,
MAX(salary) OVER (PARTITION BY dept_num ORDER BY 
name ROWS BETWEEN UNBOUNDED PRECEDING AND 1 PRECEDING) win1
FROM employee_contract;

Error: Error while compiling statement: FAILED: SemanticException End of a WindowFrame cannot
be UNBOUNDED PRECEDING (state=42000,code=40000)



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