[jira] Created: (DERBY-3300) CREATE INDEX that matches an existing index succeeds with a 01504 warning but does not create the index.

[Daniel John Debrunner (JIRA)]

CREATE INDEX that matches an existing index succeeds with a 01504 warning but 
does not create the index.
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                 Key: DERBY-3300
                 URL: https://issues.apache.org/jira/browse/DERBY-3300
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.3.2.1, 10.3.1.4
            Reporter: Daniel John Debrunner
            Priority: Minor


Since CREATE INDEX statement succeeds the index should be created, the warning 
is useful but doesn't imply the index was not created.
Derby allows a single physical index to support multiple logical indexes so 
allowing the index to be created should be fine.


ij> create table t(i int);
0 rows inserted/updated/deleted
ij> create index ti1 on t(i);
0 rows inserted/updated/deleted
ij> create index ti2 on t(i);
0 rows inserted/updated/deleted
WARNING 01504: The new index is a duplicate of an existing index: TI1.
ij> drop index ti2;
ERROR 42X65: Index 'TI2' does not exist.

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