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  1. Apache Drill
  2. DRILL-1470

Drill incorrectly ignore length parameter when cast into varchar/varbinary

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.7.0
    • Component/s: None
    • Labels:
      None

      Description

      cast(parm1 as varchar) should return a string with up to n characters. However, currently Drill will ignore the length parameter. For example,

      select first_name, cast(first_name as varchar(2)) from cp.`employee.json` limit 2;
      ----------------------+

      first_name EXPR$1

      ----------------------+

      Sheri Sheri
      Derrick Derrick

      ----------------------+
      2 rows selected (0.285 seconds)

      In comparison, here is the result run on postgres.

      select cast('abcdef' as varchar(2)) from t1 limit 1;
      varchar
      ---------
      ab
      (1 row)

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            • Assignee:
              jni Jinfeng Ni
              Reporter:
              jni Jinfeng Ni
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              • Created:
                Updated:
                Resolved: