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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-11604) Drop column does not remove column from internal schema
Date Mon, 25 Mar 2019 11:55:00 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-11604?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Vladimir Ozerov updated IGNITE-11604:
    Priority: Critical  (was: Major)

> Drop column does not remove column from internal schema
> -------------------------------------------------------
>                 Key: IGNITE-11604
>                 URL: https://issues.apache.org/jira/browse/IGNITE-11604
>             Project: Ignite
>          Issue Type: Bug
>          Components: sql
>            Reporter: Alexey Goncharuk
>            Priority: Critical
>             Fix For: 2.8
> Discovered this during the work on IGNITE-11541 (see {{StaticCacheDdlTest.testDropColumn}}).
> After a quick debug I see the following: in {{GridQueryProcessor#onSchemaFinishDiscovery}}
we call {{DynamicCacheDescriptor.schemaChangeFinish(msg)}}, which eventually calls {{QuerySchema.finish(op)}}.
> Inside that method we have the following: the {{message.columns()}} collection has the
field name in upper case (in the test it's "FIELD_TO_DROP"), but the entity's fields map contains
lower-case names ("field_to_drop"). As a result, we do not remove the field from the query
entity, this query entity is saved to the stored cache data and field re-appears after restart.

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