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Comment: edit Constraints section, add links to DML wiki

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  • The operation fails in the presence of an index. 

  • Exchange partition is not allowed with transactional tables either as source or destination. Alternatively, shall use  use LOAD DATA or INSERT OVERWRITE commands to move partitions across transactional tables. 

  • This command requires both the source and destination table names to have the same table schema.  
    If the schemas are different, the following exception is thrown:

    The tables have different schemas. Their partitions cannot be exchanged

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