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https://issues.apache.org/jira/browse/DERBY-712?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suran Jayathilaka updated DERBY-712:
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Attachment: create_drop_sequence_d.patch
This revision adds the suggested changes.
When I made SequenceDescriptor implement the Dependent interface to be able to
call dm.clearDependencies() in the drop() method, I added the other required
methods in the interface.
For now, is it correct to only invalidate for
DependencyManager.USER_RECOMPILE_REQUEST and to add actions for
DependencyManager.REVOKE_PRIVILEGE etc. after GRANT/REVOKE functionality has
been added? If this revision looks ok I will start running the regression tests.
After enabling authentication for SequenceTest, the current tests run fine.
What other test scenarios should be added to this test class?
Thanks!
Suran
> Support for sequences
> ---------------------
>
> Key: DERBY-712
> URL: https://issues.apache.org/jira/browse/DERBY-712
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Environment: feature request
> Reporter: Tony Dahbura
> Assignee: Suran Jayathilaka
> Fix For: 10.6.0.0
>
> Attachments: altertable.diff, catalogs_a.patch, catalogs_b.patch,
> catalogs_c.patch, catalogs_d.patch, catalogs_e.patch, catalogs_f.patch,
> catalogs_f_2.patch, catalogs_g.diff, catalogs_h.diff,
> create_drop_sequence_a.patch, create_drop_sequence_b.patch,
> create_drop_sequence_c.patch, create_drop_sequence_d.patch,
> create_sequence_a.patch, SequenceGenerator.html
>
>
> Would like to see support added for sequences. This would permit a select
> against the sequence to always obtain a ever increasing/decreasing value.
> The identity column works fine but there are times for applications where the
> application needs to obtain the sequence number and use it prior to the
> database write. Subsequent calls to the table/column would result in a new
> number on each call.
> SQL such as the following:
> SELECT NEXT VALUE FOR sequence_name FROM sometable ; would result in a next
> value.
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