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https://issues.apache.org/jira/browse/DERBY-4771?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kristian Waagan updated DERBY-4771:
-----------------------------------
Attachment: autoindexstats.html
derby-4771-2e-prototype_lcc_code_dump.diff
Attached patch 2e, which contains the following changes:
o removed tracing code from BTreeScan (included by mistake)
o renamed value of trace-property from "dblog" to "log"
(derby.storage.indexStats.trace=off|log|stdout|both)
o introduced interface iapi...IndexStatisticsDaemon, renamed existing class to
impl...IndexStatisticsDaemonImpl
Also attached a small HTML-file, 'autoindexstats.html', which describes some
preliminary ideas for what can be done for later revisions of the feature. Feel
free to add stuff if you have more ideas. We should also document a decision
about not implementing any of these :) For instance, how many knobs do we want
to expose for power-users? Another reason may be too high complexity.
Patch 2e ready for review.
I'd really like some review before committing this code, but if I nothing
happens I will just commit it and handle the problems as they come :)
> Continue investigation of automatic creation/update of index statistics
> -----------------------------------------------------------------------
>
> Key: DERBY-4771
> URL: https://issues.apache.org/jira/browse/DERBY-4771
> Project: Derby
> Issue Type: Task
> Components: SQL, Store
> Affects Versions: 10.8.0.0
> Reporter: Kristian Waagan
> Assignee: Kristian Waagan
> Attachments: autoindexstats.html,
> derby-4771-1a-prototype_code_dump.diff,
> derby-4771-1a-prototype_code_dump.stat,
> derby-4771-1b-prototype_code_dump.diff,
> derby-4771-2a-prototype_lcc_code_dump.diff,
> derby-4771-2b-prototype_lcc_code_dump.diff,
> derby-4771-2c-prototype_lcc_code_dump.diff,
> derby-4771-2d-prototype_lcc_code_dump.diff,
> derby-4771-2e-prototype_lcc_code_dump.diff, derby.log, error-stacktrace.out,
> rjall.out, rjall.out, rjall.out, rjall.rar, rjone.out
>
>
> Work was started to improve Derby's handling of index statistics. This issue
> tracks further discussion and work for this task.
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