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There is a main branch file  in the branch base directory of table and it has the main branch name in the file. Besides that, there will be multiple branch directories and each branch has snapshot, tag and schema in its directory.

NOTICE: By default, the Snapshot、Schema and Tag of main branch will be in the base directory of table as previously. The main branch will be used to read and write when there's no specified branch or main branch file in the table.

Create Branch

There will be a series of snapshots, tags and schemas in the main branch of a Paimon table. We can create a new branch with branch name from the tag for the table. Paimon should create a new directory with the given branch name, copy the specified tag, snapshot and schema from the main branch to the new branch.

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