[jira] [Updated] (CALCITE-3550) Make SqlTypeAssignmentRules conversion mapping pluggable

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-3550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated CALCITE-3550:
------------------------------------
    Labels: pull-request-available  (was: )

> Make SqlTypeAssignmentRules conversion mapping pluggable
> --------------------------------------------------------
>
>                 Key: CALCITE-3550
>                 URL: https://issues.apache.org/jira/browse/CALCITE-3550
>             Project: Calcite
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 1.21.0
>            Reporter: Danny Chen
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.22.0
>
>
> In CALCITE-2302, we introduce implicit type coercion for Calcite builtin conversion behaviors, we also expand the conversion matrix to support more type conversion compared to the old matrix [1], that means, we implement a conversion matrix of our Calcite style.
> As a library of other sql engines, i think we should make the conversion matrix pluggable, so that each engine can customize if the conversion is valid from a type to another.
> We have made the TypeCoercion pluggable/customizable, so if this matrix is also pluggable, then, the whole conversion behavior can be customized.
> That would give the type conversion of Calcite a pretty good flexibility.
> [1] https://docs.google.com/spreadsheets/d/1GhleX5h5W8-kJKh7NMJ4vtoE78pwfaZRJl88ULX_MgU/edit?usp=sharing



--
This message was sent by Atlassian Jira
(v8.3.4#803005)