Struct mz_adapter::coord::CopyToContext

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pub struct CopyToContext {
    pub desc: RelationDesc,
    pub uri: Uri,
    pub connection: Connection<ReferencedConnection>,
    pub connection_id: CatalogItemId,
    pub format: S3SinkFormat,
    pub max_file_size: u64,
    pub output_batch_count: Option<u64>,
}

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§desc: RelationDesc

The RelationDesc of the data to be copied.

§uri: Uri

The destination uri of the external service where the data will be copied.

§connection: Connection<ReferencedConnection>

Connection information required to connect to the external service to copy the data.

§connection_id: CatalogItemId

The ID of the CONNECTION object to be used for copying the data.

§format: S3SinkFormat

Format params to format the data.

§max_file_size: u64

Approximate max file size of each uploaded file.

§output_batch_count: Option<u64>

Number of batches the output of the COPY TO will be partitioned into to distribute the load across workers deterministically. This is only an option since it’s not set when CopyToContext is instantiated but immediately after in the PeekStageValidate stage.

Trait Implementations§

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impl Debug for CopyToContext

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