datafusion_datasource::file_stream

Enum NextOpen

Source 
pub enum NextOpen {
    Pending(FileOpenFuture),
    Ready(Result<BoxStream<'static, Result<RecordBatch, ArrowError>>>),
}
Expand description

Represents the state of the next FileOpenFuture. Since we need to poll this future while scanning the current file, we need to store the result if it is ready

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Pending(FileOpenFuture)

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Ready(Result<BoxStream<'static, Result<RecordBatch, ArrowError>>>)

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