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Posted to derby-dev@db.apache.org by "Rick Hillegas (JIRA)" <ji...@apache.org> on 2013/06/12 21:58:20 UTC
[jira] [Updated] (DERBY-6259) Collapse the level 2 optimizer into
its parent module.
[ https://issues.apache.org/jira/browse/DERBY-6259?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rick Hillegas updated DERBY-6259:
---------------------------------
Attachment: derby-6259-01-aa-collapseOptimizers.diff
Attaching derby-6259-01-aa-collapseOptimizers.diff. This patch collapses the two optimizers together. I will run tests.
Touches the following files:
M java/engine/org/apache/derby/impl/sql/compile/OptimizerFactoryImpl.java
D java/engine/org/apache/derby/impl/sql/compile/Level2CostEstimateImpl.java
D java/engine/org/apache/derby/impl/sql/compile/Level2OptimizerImpl.java
M java/engine/org/apache/derby/impl/sql/compile/OptimizerImpl.java
D java/engine/org/apache/derby/impl/sql/compile/Level2OptimizerFactoryImpl.java
M java/engine/org/apache/derby/impl/sql/compile/CostEstimateImpl.java
M java/engine/org/apache/derby/modules.properties
M java/testing/org/apache/derbyTesting/functionTests/harness/Sed.java
> Collapse the level 2 optimizer into its parent module.
> ------------------------------------------------------
>
> Key: DERBY-6259
> URL: https://issues.apache.org/jira/browse/DERBY-6259
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 10.11.0.0
> Reporter: Rick Hillegas
> Assignee: Rick Hillegas
> Attachments: derby-6259-01-aa-collapseOptimizers.diff
>
>
> Right now there are 2 optimizer implementations, only one of which is ever loaded. The other implementation was disabled by the following comment in modules.properties:
> # use level1 optimizer for small configurations
> #
> # can't do this in the codeline because with 2 implementations, it is entirely
> # by chance which get picked. So we may be running with different modules
> # depending on which jdk
> #
> # to be resolve by Siuling and Dan
> #
> #derby.module.optimizerSmall=org.apache.derby.impl.sql.compile.OptimizerFactoryImpl
> #cloudscape.config.optimizerSmall=cloud,cloudtarget
> Since we have deprecated support for the small CDC configuration, I don't think that we need further resolution by Siuling and Dan. Collapsing the two optimizers together should slightly reduce our static footprint.
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