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CachedColumn

liquid_cache_datafusion::cache

Struct CachedColumn 

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

A column in the cache.

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impl CachedColumn

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pub fn field(&self) -> Arc<Field>

Returns the Arrow field metadata for this cached column.

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pub fn expression(&self) -> Option<Arc<CacheExpression>>

Returns the expression metadata associated with this column, if any.

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pub async fn eval_predicate_with_filter( &self, batch_id: BatchID, filter: &BooleanBuffer, predicate: &mut LiquidPredicate, ) -> Option<Result<BooleanArray, ArrowError>>

Evaluates a predicate on a cached column.

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pub async fn get_arrow_array_with_filter( &self, batch_id: BatchID, filter: &BooleanBuffer, ) -> Option<ArrayRef>

Get an arrow array with a filter applied.

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pub async fn insert( self: &Arc<Self>, batch_id: BatchID, array: ArrayRef, ) -> Result<(), InsertArrowArrayError>

Insert an array into the cache.

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impl Debug for CachedColumn

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

Formats the value using the given formatter. Read more

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