parquet::file::metadata

Struct ColumnIndexBuilder

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

Builder for Parquet ColumnIndex, part of the Parquet PageIndex

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impl ColumnIndexBuilder

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pub fn new() -> Self

Creates a new column index builder.

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pub fn append( &mut self, null_page: bool, min_value: Vec<u8>, max_value: Vec<u8>, null_count: i64, )

Append statistics for the next page

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pub fn append_histograms( &mut self, repetition_level_histogram: &Option<LevelHistogram>, definition_level_histogram: &Option<LevelHistogram>, )

Append the given page-level histograms to the ColumnIndex histograms. Does nothing if the ColumnIndexBuilder is not in the valid state.

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pub fn set_boundary_order(&mut self, boundary_order: BoundaryOrder)

Set the boundary order of the column index

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pub fn to_invalid(&mut self)

Mark this column index as invalid

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pub fn valid(&self) -> bool

Is the information in the builder valid?

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pub fn build_to_thrift(self) -> ColumnIndex

Build and get the thrift metadata of column index

Note: callers should check Self::valid before calling this method

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impl Default for ColumnIndexBuilder

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fn default() -> Self

Returns the “default value” for a type. Read more

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