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Describes whether a job should overwrite or append the existing destination table if it already exists.
Enums
WRITE_DISPOSITION_UNSPECIFIED
Unknown.
WRITE_EMPTY
This job should only be writing to empty tables.
WRITE_TRUNCATE
This job will truncate table data and write from the beginning. This may not preserve table metadata such as table schema, row access policy, column descriptions etc. This is the default value.
WRITE_APPEND
This job will append to the table.
WRITE_TRUNCATE_DATA
This job will truncate table data but preserve table metadata such as table schema, row access policy, column descriptions etc.