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https://issues.apache.org/jira/browse/FLINK-14983?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timo Walther updated FLINK-14983:
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Description:
The [design
document|https://docs.google.com/document/d/1RM_-XvD25AldUOl7xRSvA3sascWBa1-Jze3i5mvb7WU/edit#]
around {{TypeInference}} already mentioned an {{InputTypesInference}} that
enables the derivation of missing or incomplete input signatures. The Calcite
equivalent is called {{SqlOperandTypeInference}}.
For FLIP-65, we will need to implement those interfaces as the planner needs
infer the {{DataType}} s out of logical types that come from the logical query.
This is also beneficial to support the {{NULL}} literal in the future.
was:
The [design
document|https://docs.google.com/document/d/1RM_-XvD25AldUOl7xRSvA3sascWBa1-Jze3i5mvb7WU/edit#]
around {{TypeInference}} already mentioned an {{InputTypesInference}} that
enables the derivation of missing or incomplete input signatures. The Calcite
equivalent is called {{SqlOperandTypeInference}}.
For FLIP-65, we will need to implement those interfaces as the planner needs
infer the {{DataType}}s out of logical types that come from the logical query.
This is also beneficial to support the {{NULL}} literal in the future.
> Add interfaces for input type inference
> ---------------------------------------
>
> Key: FLINK-14983
> URL: https://issues.apache.org/jira/browse/FLINK-14983
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
>
> The [design
> document|https://docs.google.com/document/d/1RM_-XvD25AldUOl7xRSvA3sascWBa1-Jze3i5mvb7WU/edit#]
> around {{TypeInference}} already mentioned an {{InputTypesInference}} that
> enables the derivation of missing or incomplete input signatures. The Calcite
> equivalent is called {{SqlOperandTypeInference}}.
> For FLIP-65, we will need to implement those interfaces as the planner needs
> infer the {{DataType}} s out of logical types that come from the logical
> query. This is also beneficial to support the {{NULL}} literal in the future.
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