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https://issues.apache.org/jira/browse/FLINK-25609?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timo Walther closed FLINK-25609.
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Fix Version/s: 1.15.0
Resolution: Fixed
Fixed in master: 50ff5084461c5dda106cefd53afeeff240c5b416
> Avoid creating temporary tables for inline tables
> -------------------------------------------------
>
> Key: FLINK-25609
> URL: https://issues.apache.org/jira/browse/FLINK-25609
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: Timo Walther
> Assignee: Francesco Guardiani
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.15.0
>
>
> Currently, inline tables such as {{fromDataStream}} or
> {{from(TableDescriptor)}} as well as {{toChangelogStream}} or
> {{Table.executeInsert(TableDescriptor)}} create an artifical temporary table
> with object identifier.
> This is due to Calcite that forces {{RelBuilder.scan}} to have an object
> identifier.
> Instead we should:
> - Create an internal {{RelOptTable}} that wraps {{CatalogTable}}
> - Various flavors of {{CatalogTable}} can store the {{DataStream}} object or
> information of the {{TableDescriptor.}}
> - Manually create {{LogicalTableScan}}
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