WriteDisposition(value)Specifies the action that occurs if the destination table or partition already exists. By default, the data will be appended to the existing table.
Enums |
|
|---|---|
| Name | Description |
WRITE_DISPOSITION_UNSPECIFIED |
Unspecified write disposition. |
WRITE_APPEND |
If the table or partition already exists, BigQuery appends the data to the table or the latest partition. |
WRITE_TRUNCATE |
If the table or partition already exists, BigQuery overwrites the entire table or all the partitions data. |
WRITE_EMPTY |
If the table already exists and contains data, an error is returned. |