CachedParquetMetaData

datafusion_datasource_parquet::reader

Struct CachedParquetMetaData 

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pub struct CachedParquetMetaData(Arc<ParquetMetaData>);
Expand description

Wrapper to implement [FileMetadata] for [ParquetMetaData].

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§0: Arc<ParquetMetaData>

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impl CachedParquetMetaData

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pub fn new(metadata: Arc<ParquetMetaData>) -> Self

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pub fn parquet_metadata(&self) -> &Arc<ParquetMetaData>

Trait Implementations§

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impl FileMetadata for CachedParquetMetaData

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fn as_any(&self) -> &dyn Any

Returns the file metadata as Any so that it can be downcast to a specific implementation.
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fn memory_size(&self) -> usize

Returns the size of the metadata in bytes.
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fn extra_info(&self) -> HashMap<String, String>

Returns extra information about this entry (used by [FileMetadataCache::list_entries]).

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