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https://issues.apache.org/jira/browse/CALCITE-6465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17886137#comment-17886137
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Sergey Nuyanzin commented on CALCITE-6465:
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There is a very limited a number of submodules in Flink depending on Calcite
(only those where either SQL parsing or planning is happening). So far it is
flink-connector-hive, flink-sql-parser, flink-sql-client,
flink-table-calcite-bridge, flink-table-planner.
In other words since from one side Flink allows to work with so called
DataStream api (no dependency on Calcite) and from another side with SQL/Table
api (depend on Calcite) then the core part of Flink doesn't depend on Calcite.
The dependency comes only with {{flink-table}} module which contains
aforementioned submodules.
> Rework code generator to use Flink code splitter
> ------------------------------------------------
>
> Key: CALCITE-6465
> URL: https://issues.apache.org/jira/browse/CALCITE-6465
> Project: Calcite
> Issue Type: New Feature
> Components: core
> Reporter: James Duong
> Assignee: James Duong
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.38.0
>
>
> Holistically replace the (or provide a separate optional) code generator to
> reduce issues such as CALCITE-3094 .
> One suggestion in the comments for CALCITE-3094 has been to use the [code
> generator from
> Flink.|https://nightlies.apache.org/flink/flink-docs-release-1.3/api/java/org/apache/flink/table/codegen/CodeGenerator.html]
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