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https://issues.apache.org/jira/browse/HIVE-28275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17860118#comment-17860118
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Ayush Saxena commented on HIVE-28275:
-------------------------------------
Committed to master.
Thanx [~simhadri-g] for the review!!!
> Iceberg: Add support for 'If Not Exists" and 'or Replace' for Create Tag
> -------------------------------------------------------------------------
>
> Key: HIVE-28275
> URL: https://issues.apache.org/jira/browse/HIVE-28275
> Project: Hive
> Issue Type: Sub-task
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
> Labels: pull-request-available
>
> Add support for If not exists and Or Replace while creating Tags
> {noformat}
> -- CREATE historical-tag at current snapshot with default retention if it
> doesn't exist.
> ALTER TABLE prod.db.sample CREATE TAG IF NOT EXISTS `historical-tag`
> -- CREATE historical-tag at current snapshot with default retention or
> REPLACE it if it already exists.
> ALTER TABLE prod.db.sample CREATE OR REPLACE TAG `historical-tag`{noformat}
> Like Spark:
> https://iceberg.apache.org/docs/1.5.1/spark-ddl/#alter-table-create-branch
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