[jira] [Comment Edited] (FLINK-10273) Access composite type fields after a function

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

    [ https://issues.apache.org/jira/browse/FLINK-10273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16598959#comment-16598959 ] 

Rong Rong edited comment on FLINK-10273 at 8/31/18 4:13 PM:
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sounds good. FLINK-10019 is pretty specific. but the underlying CALCITE-2468 might be more generic. I tried to resolve the issue with a quick fix but it touches some of the fundamentals on CALCITE. Let me know if anything I can help.


was (Author: walterddr):
sounds good. FLINK-10019 is pretty specific. but the underlying CALCITE-2468 might be more generic. I tried to resolve the issue with a quick fix but it touches some of the fundamentals. Let me know if anything I can help.

> Access composite type fields after a function
> ---------------------------------------------
>
>                 Key: FLINK-10273
>                 URL: https://issues.apache.org/jira/browse/FLINK-10273
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API & SQL
>    Affects Versions: 1.7.0
>            Reporter: Timo Walther
>            Priority: Major
>
> If a function returns a composite type, for example, {{Row(lon: Float, lat: Float)}}. There is currently no way of accessing fields.
> Both queries fail with exceptions:
> {code}
> select t.c.lat, t.c.lon FROM (select toCoords(12) as c) AS t
> {code}
> {code}
> select toCoords(12).lat
> {code}



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