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https://issues.apache.org/jira/browse/DERBY-2710?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mike Matrigali updated DERBY-2710:
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Component/s: SQL
Description:
I think Code needs to be added to
opensource/java/engine/org/apache/derby/impl/sql/compile/LikeEscapeOperatorNode.java
to disable like optimization for databases with non-default collation. There
is left over code in this routine that says it disables it for national char by
adding a cast to one of the two sides which I assume then stops some other code
from considering the
optimization.
Affects Version/s: 10.3.0.0
Assignee: Mike Matrigali
> disable dynamic like optimization for collated databases
> --------------------------------------------------------
>
> Key: DERBY-2710
> URL: https://issues.apache.org/jira/browse/DERBY-2710
> Project: Derby
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 10.3.0.0
> Reporter: Mike Matrigali
> Assigned To: Mike Matrigali
>
> I think Code needs to be added to
> opensource/java/engine/org/apache/derby/impl/sql/compile/LikeEscapeOperatorNode.java
> to disable like optimization for databases with non-default collation. There
> is left over code in this routine that says it disables it for national char
> by adding a cast to one of the two sides which I assume then stops some other
> code from considering the
> optimization.
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