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https://issues.apache.org/jira/browse/DERBY-4833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kristian Waagan updated DERBY-4833:
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Attachment: derby-4833-2a-updatelocks_disable_autostats.diff
Attaching patch 2a, which disabled automatic index stats update for the test
store/updatelocks.sql.
The locks taken, or possibly timing differences, are interfering with the
test.There are also reports of intermittent failures for this test (before any
of the new istat code was added).
Patch ready for review.
> Prepare existing JUnit tests for running with automatic index statistics
> generation
> -----------------------------------------------------------------------------------
>
> Key: DERBY-4833
> URL: https://issues.apache.org/jira/browse/DERBY-4833
> Project: Derby
> Issue Type: Task
> Components: Test
> Affects Versions: 10.7.1.1
> Reporter: Kristian Waagan
> Assignee: Kristian Waagan
> Priority: Minor
> Attachments:
> derby-4833-1a-orderbyandsortavoidancetest_adjustment.diff,
> derby-4833-2a-updatelocks_disable_autostats.diff
>
>
> During prototyping of a mechanism to create and update index statistics
> automatically (see DERBY-4771) it turned out that some of the tests fail due
> to the presence of [improved] index statistics.
> Where appropriate the tests should be adjusted to cope with this background
> activity, and where not appropriate it should be noted such that the feature,
> when introduced, can be disabled.
> As part of this effort I will introduce a utility class for dealing with
> index statistics in tests. These will be used by some existing tests and also
> the new tests that will be written for the new feature.
> At this point two tests requiring adjustments have been identified
> (OrderByAndSortAvoidance, UpdateStatisticsTest), and one is under
> investigation (AutoIncrementTest). More may surface as the work on the
> feature progress.
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