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Posted to issues@flink.apache.org by "Timo Walther (JIRA)" <ji...@apache.org> on 2019/06/21 11:53:00 UTC
[jira] [Updated] (FLINK-12924) Introduce basic type inference
interfaces
[ https://issues.apache.org/jira/browse/FLINK-12924?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Timo Walther updated FLINK-12924:
---------------------------------
Description:
This issue introduces basic interfaces for performing type inference. It includes validation of input types and deduction of accumulator or return types. Argument type inference (i.e. deducing a type for {{NULL}}) will be introduced in a later step. The interfaces replace the need for {{PlannerExpression}}.
A rough design document can be found here but it needs some update. Introduction of annotations and basic type extraction will come later:
[https://docs.google.com/document/d/1RM_-XvD25AldUOl7xRSvA3sascWBa1-Jze3i5mvb7WU/edit#heading=h.kwyjplavecx4]
was:
This issue introduces basic interfaces for performing type inference. It includes validation of input types and deduction of accumulator or return types. Argument type inference (i.e. deducing a type for \{{NULL}}) will be introduced in a later step. The interfaces replace the need for \{{PlannerExpression}}.
A rough design document can be found here but it needs some update. Introduction of annotations and basic type extraction will come later: [https://docs.google.com/document/d/1RM_-XvD25AldUOl7xRSvA3sascWBa1-Jze3i5mvb7WU/edit#heading=h.kwyjplavecx4
]
> Introduce basic type inference interfaces
> -----------------------------------------
>
> Key: FLINK-12924
> URL: https://issues.apache.org/jira/browse/FLINK-12924
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Major
>
> This issue introduces basic interfaces for performing type inference. It includes validation of input types and deduction of accumulator or return types. Argument type inference (i.e. deducing a type for {{NULL}}) will be introduced in a later step. The interfaces replace the need for {{PlannerExpression}}.
> A rough design document can be found here but it needs some update. Introduction of annotations and basic type extraction will come later:
> [https://docs.google.com/document/d/1RM_-XvD25AldUOl7xRSvA3sascWBa1-Jze3i5mvb7WU/edit#heading=h.kwyjplavecx4]
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