UP_SQL = """
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ALTER TABLE afe_shards ADD COLUMN hostname VARCHAR(255) NOT NULL;
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ALTER TABLE afe_hosts ADD COLUMN shard_id INT NULL;
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ALTER TABLE afe_hosts ADD CONSTRAINT hosts_to_shard_ibfk
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FOREIGN KEY (shard_id) REFERENCES afe_shards(id);
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"""
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DOWN_SQL = """
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ALTER TABLE afe_hosts DROP FOREIGN KEY hosts_to_shard_ibfk;
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ALTER TABLE afe_hosts DROP COLUMN shard_id;
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ALTER TABLE afe_shards DROP COLUMN hostname;
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"""
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