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https://issues.apache.org/jira/browse/PHOENIX-7167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17804398#comment-17804398
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Rushabh Shah commented on PHOENIX-7167:
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Thank you [~palashc] for the patch !
> Last DDL Timestamp is set to null in connection which bootstraps System tables
> ------------------------------------------------------------------------------
>
> Key: PHOENIX-7167
> URL: https://issues.apache.org/jira/browse/PHOENIX-7167
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: Palash Chauhan
> Assignee: Palash Chauhan
> Priority: Major
>
> When trying to create SYSTEM.CATALOG table, a PTable object is bootstrapped
> in the client cache which is then overridden by what the server returns. When
> the table is not found (i.e. this is the first connection),
> LAST_DDL_TIMESTAMP ends up being null because of this code block:
> {code:java}
> .setLastDDLTimestamp(result.getTable() != null ?
> result.getTable().getLastDDLTimestamp() :
> null) {code}
> This leads to NPE when client tries to validate timestamp for SYSTEM.CATALOG
> table.
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