google.cloud.bigquery.job.WriteDisposition#
Methods
Attributes
If the table already exists, BigQuery appends the data to the table. |
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If the table already exists and contains data, a ‘duplicate’ error is returned in the job result. |
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If the table already exists, BigQuery overwrites the table data. |
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class
google.cloud.bigquery.job.
WriteDisposition
[source]# Bases:
object
Specifies the action that occurs if destination table already exists.
The default value is
WRITE_APPEND
.Each action is atomic and only occurs if BigQuery is able to complete the job successfully. Creation, truncation and append actions occur as one atomic update upon job completion.
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WRITE_APPEND
= 'WRITE_APPEND'# If the table already exists, BigQuery appends the data to the table.
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WRITE_EMPTY
= 'WRITE_EMPTY'# If the table already exists and contains data, a ‘duplicate’ error is returned in the job result.
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WRITE_TRUNCATE
= 'WRITE_TRUNCATE'# If the table already exists, BigQuery overwrites the table data.
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