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https://issues.apache.org/jira/browse/STORM-2148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jungtaek Lim resolved STORM-2148.
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Resolution: Fixed
Fix Version/s: 1.1.0
2.0.0
Merged into master and 1.x branch.
> [Storm SQL] Trident mode: back to code generate and compile Trident topology
> ----------------------------------------------------------------------------
>
> Key: STORM-2148
> URL: https://issues.apache.org/jira/browse/STORM-2148
> Project: Apache Storm
> Issue Type: Improvement
> Components: storm-sql
> Reporter: Jungtaek Lim
> Assignee: Jungtaek Lim
> Fix For: 2.0.0, 1.1.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Now Storm SQL just converts Rex to code block and pass to Evaluation~ class
> so that each class can evaluate the code block in runtime.
> This change made the code greatly simplified, but I expect that it is not
> same as performant as compiling and execute natively.
> Linq4j in Calcite provides utility methods to make the code nicely. It's
> going to really really more verbose, but really better than having string
> concatenated code block since it doesn't have any guards.
> So let's convert it back to code generation, but more elegant.
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