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https://issues.apache.org/jira/browse/IGNITE-10471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stanislav Lukyanov updated IGNITE-10471:
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Summary: SQL: ALTER TABLE ADD COLUMN doesn't support user types but drop
column does (was: SQL: Alter table to add column syntax doesn't support the
user types but drop column can drop such fields)
> SQL: ALTER TABLE ADD COLUMN doesn't support user types but drop column does
> ---------------------------------------------------------------------------
>
> Key: IGNITE-10471
> URL: https://issues.apache.org/jira/browse/IGNITE-10471
> Project: Ignite
> Issue Type: Improvement
> Components: sql
> Affects Versions: 2.6
> Reporter: Andrey Aleksandrov
> Priority: Minor
> Fix For: 2.8
>
>
> Looks like ALTER COLUMN commands could be used only on a subset of supported
> types (that could be used in CREATE TABLE syntax):
> [https://apacheignite-sql.readme.io/docs/data-types]
> But using query entities we can provide to use a field that has user types.
> This fields can be used in
> ALTER TABLE CACHE_NAME DROP COLUMN COLUMN_NAME
> But it can't be used as next:
> ALTER TABLE CACHE_NAME ADD COLUMN COLUMN_NAME 'type'
> Where type is a user's one.
> Possible we should think about supporting POJO and enums.
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