Derby
  1. Derby
  2. DERBY-6030

Length of escape string in LIKE ... ESCAPE not properly checked with territory based collation

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 10.9.1.0
    • Fix Version/s: 10.8.3.3, 10.9.2.2, 10.10.1.1
    • Component/s: SQL
    • Labels:
      None
    • Issue & fix info:
      Repro attached

      Description

      When an ESCAPE clause contains multiple characters, but only a single collation element, they are accepted as long as it's not a literal:

      ij> connect 'jdbc:derby:memory:nodb;create=true;territory=no;collation=TERRITORY_BASED';
      ij> create table t(x varchar(20), y varchar(20), z varchar(20));
      0 rows inserted/updated/deleted
      ij> insert into t values ('abc', 'def', 'aa');
      1 row inserted/updated/deleted
      ij> select * from t where x like y escape z;
      X |Y |Z
      --------------------------------------------------------------

      0 rows selected

      If the same query is performed with a literal in the ESCAPE clause, the problem is detected and correctly reported:

      ij> select * from t where x like y escape 'aa';
      ERROR 22019: Invalid escape sequence, 'aa'. The escape string must be exactly one character. It cannot be a null or more than one character.

      1. d6030-1a.diff
        4 kB
        Knut Anders Hatlen

        Activity

        Knut Anders Hatlen created issue -
        Knut Anders Hatlen made changes -
        Field Original Value New Value
        Assignee Knut Anders Hatlen [ knutanders ]
        Knut Anders Hatlen made changes -
        Status Open [ 1 ] In Progress [ 3 ]
        Knut Anders Hatlen made changes -
        Attachment d6030-1a.diff [ 12563933 ]
        Knut Anders Hatlen made changes -
        Issue & fix info Repro attached [ 10424 ] Patch Available,Repro attached [ 10102, 10424 ]
        Knut Anders Hatlen made changes -
        Status In Progress [ 3 ] Resolved [ 5 ]
        Issue & fix info Patch Available,Repro attached [ 10102, 10424 ] Repro attached [ 10424 ]
        Fix Version/s 10.10.0.0 [ 12321550 ]
        Resolution Fixed [ 1 ]
        Knut Anders Hatlen made changes -
        Status Resolved [ 5 ] Closed [ 6 ]
        Gavin made changes -
        Workflow jira [ 12744116 ] Default workflow, editable Closed status [ 12802829 ]
        Mamta A. Satoor made changes -
        Assignee Knut Anders Hatlen [ knutanders ] Mamta A. Satoor [ mamtas ]
        Mamta A. Satoor made changes -
        Fix Version/s 10.8.3.1 [ 12323475 ]
        Fix Version/s 10.9.2.2 [ 12323562 ]

          People

          • Assignee:
            Mamta A. Satoor
            Reporter:
            Knut Anders Hatlen
          • Votes:
            0 Vote for this issue
            Watchers:
            5 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development