Class WriteDisposition (1.12.0)

WriteDisposition(value)

Specifies the action that occurs if the destination table already exists.

Values: WRITE_DISPOSITION_UNSPECIFIED (0): Write disposition is not specified. Defaults to WRITE_TRUNCATE. WRITE_TRUNCATE (1): If the table already exists, BigQuery will overwrite the table data and use the schema from the load. WRITE_APPEND (2): If the table already exists, BigQuery will append data to the table.