Alexey Goncharuk created IGNITE-11604:
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Summary: 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
Reporter: Alexey Goncharuk
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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