IMPORT commands work independently of the source and target metastore DBMS used; for example, they can be used between Derby and MySQL databases.
IMPORT will create target table/partition if it does not exist. All the table properties/parameters will be that of table that was used in
EXPORT to generate the archive. If target exists, checks are performed that it has appropriate schema, Input/OutputFormat, etc. If target table exists and is not partitioned, it must be empty. If target table exists and is partitioned, partitions being imported must not exist in the table.
EXPORT TABLE tablename [PARTITION (part_column="value"[, ...])] TO 'export_target_path' [ FOR replication('eventid') ]