Specifies the action that occurs if the destination table already exists.
Enums | |
---|---|
WRITE_DISPOSITION_UNSPECIFIED |
Write disposition is not specified. Defaults to WRITE_TRUNCATE. |
WRITE_TRUNCATE |
If the table already exists, BigQuery will overwrite the table data and use the schema from the load. |
WRITE_APPEND |
If the table already exists, BigQuery will append data to the table. |