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  1. Hive
  2. HIVE-12474

ORDER BY should handle column refs in parantheses

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: 1.0.0, 1.2.1
    • Fix Version/s: None
    • Component/s: Parser
    • Labels:
      None

      Description

      CREATE TABLE test(a INT, b INT, c INT)
      COMMENT 'This is a test table';

      hive>
      select lead(c) over (order by (a,b)) from test limit 10;
      FAILED: ParseException line 1:31 missing ) at ',' near ')'
      line 1:34 missing EOF at ')' near ')'

      hive>
      select lead(c) over (order by a,b) from test limit 10;

      • Works as expected.

      It appears that 'cluster by'/'sort by'/'distribute by'/'partition by' allows this:
      https://github.com/apache/hive/blob/release-1.2.1/ql/src/java/org/apache/hadoop/hive/ql/parse/IdentifiersParser.g#L129

      For example, this syntax is still valid:
      select lead(c) over (sort by (a,b)) from test limit 10;

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              • Assignee:
                xuefuz Xuefu Zhang
                Reporter:
                aartokhy Aaron Tokhy
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                Dates

                • Created:
                  Updated: