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From "Rick Hillegas (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DERBY-6959) Required the Standard SET keyword in the syntax for changing the cycle behavior of identity columns
Date Sun, 10 Sep 2017 19:52:00 GMT
Rick Hillegas created DERBY-6959:
------------------------------------

             Summary: Required the Standard SET keyword in the syntax for changing the cycle
behavior of identity columns
                 Key: DERBY-6959
                 URL: https://issues.apache.org/jira/browse/DERBY-6959
             Project: Derby
          Issue Type: Bug
          Components: SQL
    Affects Versions: 10.14.0.0
            Reporter: Rick Hillegas
             Fix For: 10.14.0.0


The correct syntax for changing the cycling behavior of an auto-increment column is...

  ALTER TABLE ALTER COLUMN $columnName SET [NO] CYCLE

...according to the 2016 SQL Standard, part 2, sections 11.20 (<alter identity column specification)
and 11.72 (<sequence generator definition>). This is also the syntax used by DB2 (see
https://www.ibm.com/support/knowledgecenter/en/SSEPEK_10.0.0/sqlref/src/tpc/db2z_sql_altertable.html).
Right now Derby does not accept the required SET keyword. We should bring Derby into compliance
with the Standard. I will attach a patch to do this.




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