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  1. Derby
  2. DERBY-3566

Alter column set data type not allowed in soft upgrade with unique constraint

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 10.4.1.3
    • Fix Version/s: 10.4.1.3, 10.5.1.1
    • Component/s: SQL
    • Labels:
      None
    • Bug behavior facts:
      Regression

      Description

      In 10.3 I can do this:

      ij> create table t0 (i int not null, v varchar(1) not null, constraint uq unique(v,i));
      0 rows inserted/updated/deleted
      ij> alter table t0 alter v set data type varchar(2);
      0 rows inserted/updated/deleted
      ij>

      In 10.4 soft upgrade mode I cannot:
      ij> create table t0 (i int not null, v varchar(1) not null, constraint uq unique(v,i));
      0 rows inserted/updated/deleted
      ij> alter table t0 alter v set data type varchar(2);
      ERROR 42Z20: Column 'V' cannot be made nullable. It is part of a primary key or unique constraint, which cannot have any
      nullable columns.
      ij>

        Attachments

        1. derby-3566_v1.diff
          3 kB
          Anurag Aggarwal

          Activity

            People

            • Assignee:
              anurag Anurag Aggarwal
              Reporter:
              kmarsden Katherine Marsden
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              Dates

              • Created:
                Updated:
                Resolved: