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https://issues.apache.org/jira/browse/DERBY-672?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rick Hillegas updated DERBY-672:
--------------------------------
Attachment: derby-672-18-aa-udaInJar.diff
Attaching derby-672-18-aa-udaInJar.diff. This patch adds support for running
user-defined aggregates from jar files stored in the database. I am running
regression tests now.
Touches the following files:
-----------
M
java/engine/org/apache/derby/impl/sql/compile/UserAggregateDefinition.java
Fault-in Aggregator before faulting-in the user-supplied class. I don't think
this is necessary but it looks cleaner.
-----------
M java/engine/org/apache/derby/impl/services/reflect/JarLoader.java
Add the Aggregator package to the list of Derby packages which the database
class loader is willing to load.
-----------
M
java/testing/org/apache/derbyTesting/functionTests/tests/lang/DatabaseClassLoadingTest.java
A
java/testing/org/apache/derbyTesting/functionTests/tests/lang/median_uda.jar
Test for this functionality. The jar file holds a Median aggregator. A new test
case in DatabaseClassLoadingTest installs the jar, wires it into the database
class path, and then invokes the aggregate inside.
> Re-enable user defined aggregates
> ---------------------------------
>
> Key: DERBY-672
> URL: https://issues.apache.org/jira/browse/DERBY-672
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Reporter: Rick Hillegas
> Assignee: Rick Hillegas
> Attachments: derby-672-01-aa-ddl.diff,
> derby-672-02-ac-nonDistinct.diff, derby-672-03-aa-distinct.diff,
> derby-672-03-ab-distinct.diff, derby-672-04-aa-fixJSR169test.diff,
> derby-672-05-aa-java7testOrderProblem.diff, derby-672-06-aa-grantRevoke.diff,
> derby-672-07-aa-fixJSR169again.diff, derby-672-08-aa-fixJSR169yetAgain.diff,
> derby-672-09-ab-udtAggregates.diff, derby-672-10-af-typeBounds.diff,
> derby-672-11-aa-tests.diff, derby-672-11-ab-tests.diff,
> derby-672-12-aa-implicitCasts.diff, derby-672-13-aa-differentReturnType.diff,
> derby-672-14-aa-collations.diff, derby-672-15-aa-setCollation.diff,
> derby-672-16-aa-forbidInGroupBy.diff, derby-672-17-aa-moreTests.diff,
> derby-672-18-aa-udaInJar.diff, UserDefinedAggregates.html,
> UserDefinedAggregates.html, UserDefinedAggregates.html
>
>
> Nicolas Dufour in an email thread titled "functions and list" started on
> November 2, 2005 requests the ability to create user defined aggregates.
> This functionality used to be in Cloudscape. It was disabled presumably
> because it was considered non-standard. However, most of the machinery needed
> for this feature is still in the code. We should re-enable user defined
> aggregates after we agree on acceptable syntax.
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