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DiskManager in datafusion::execution - Rust
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Struct datafusion::execution::DiskManager

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pub struct DiskManager { /* private fields */ }
Expand description

Manages files generated during query execution, e.g. spill files generated while processing dataset larger than available memory.

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impl DiskManager

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pub fn try_new( config: DiskManagerConfig ) -> Result<Arc<DiskManager>, DataFusionError>

Create a DiskManager given the configuration

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pub fn create_tmp_file( &self, request_description: &str ) -> Result<NamedTempFile<File>, DataFusionError>

Return a temporary file from a randomized choice in the configured locations

If the file can not be created for some reason, returns an error message referencing the request description

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impl Debug for DiskManager

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

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type Output = T

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type Error = Infallible

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type Error = <U as TryFrom<T>>::Error

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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