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https://issues.apache.org/jira/browse/PHOENIX-7270?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Palash Chauhan reassigned PHOENIX-7270:
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Assignee: Palash Chauhan
> Always resolve table before DDL operations.
> -------------------------------------------
>
> Key: PHOENIX-7270
> URL: https://issues.apache.org/jira/browse/PHOENIX-7270
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: Rushabh Shah
> Assignee: Palash Chauhan
> Priority: Major
>
> After we set the UCF = NEVER to all tables, we are validating last ddl
> timestamps for read and write queries.
> For DDL operations, we are reading the PTable from the client side cache.
> In some cases, after the DDL operations we are updating/invalidating the
> cache for the table which is being altered but we don't invalidate the cache
> for the parent table (in case of views) or indexes.
> When column encoding is set to true, we increment the seq number for base
> physical table (for views) whenever we create a view. Refer
> [here|https://github.com/apache/phoenix/blob/master/phoenix-core-client/src/main/java/org/apache/phoenix/schema/MetaDataClient.java#L2924-L2931]
> for more details. Once the create view command is executed successfully, we
> only add the view to the cache but we don't update the base table in the
> cache. This can cause an inconsistency when we use the same cached PTable
> object for next DDL operations on the base table.
> Solutions:
> 1. Validate last ddl timestamps for table, view hierarchy and indexes for
> every DDL operations like we do for read and write queries.
> 2. Always resolve the table, view hierarchy and indexes for every DDL
> operation. It will have the same effect as UCF is set to ALWAYS but just for
> DDL operations.
> I would prefer option#2 since that will guarantee we always get the latest
> Ptable object for DDL operations.
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