[jira] [Closed] (FLINK-12799) Improve expression based TableSchema extraction from DataStream/DataSet

["Dawid Wysakowicz (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-12799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dawid Wysakowicz closed FLINK-12799.
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    Resolution: Fixed

Implemented in d894d3517258191703a0a6dd6b42947c8a0d8d95

> Improve expression based TableSchema extraction from DataStream/DataSet
> -----------------------------------------------------------------------
>
>                 Key: FLINK-12799
>                 URL: https://issues.apache.org/jira/browse/FLINK-12799
>             Project: Flink
>          Issue Type: Sub-task
>            Reporter: Dawid Wysakowicz
>            Assignee: Dawid Wysakowicz
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.9.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> We should improve the extraction of {{TableSchema}} from {{DataStream/DataSet}}. Currently it is split into a few stages:
> # Extract types ignoring time attributes via {{FieldInfoUtils#getFieldInfo}}
> # Extract the rowtime and proctime positions via {{StreamTableEnvImpl#validateAndExtractTimeAttributes}}
> # Adjust the indices from #1 using information from #2
> All that could happen in a single pass. This will also deal with the porting/removing of a few methods from {{StreamTableEnvImpl}}.



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