[jira] [Updated] (IGNITE-3487) _key and _val fields should be excluded from 'select * from' queries

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

     [ https://issues.apache.org/jira/browse/IGNITE-3487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Denis Magda updated IGNITE-3487:
--------------------------------
    Labels: important  (was: )

> _key and _val fields should be excluded from 'select * from' queries
> --------------------------------------------------------------------
>
>                 Key: IGNITE-3487
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3487
>             Project: Ignite
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 1.6
>            Reporter: Valentin Kulichenko
>              Labels: important
>             Fix For: 2.0
>
>
> We have a pretty serious usability issue - predefined {{_key}} and {{_val}} fields are returned when query like {{select * from}} is executed. First of all, this is counterintuitive because user never defines or configures these fields. Second of all, they actually duplicate all other fields. And finally, they cause serialization exceptions because classes for key and value are not always available.
> We should exclude these fields from {{select * from}} queries, but this is a compatibility breaking change. It should be done in 2.0.



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