parquet::file::metadata

Struct OffsetIndexBuilder

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pub struct OffsetIndexBuilder {
    offset_array: Vec<i64>,
    compressed_page_size_array: Vec<i32>,
    first_row_index_array: Vec<i64>,
    unencoded_byte_array_data_bytes_array: Option<Vec<i64>>,
    current_first_row_index: i64,
}
Expand description

Builder for offset index, part of the Parquet PageIndex.

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§offset_array: Vec<i64>§compressed_page_size_array: Vec<i32>§first_row_index_array: Vec<i64>§unencoded_byte_array_data_bytes_array: Option<Vec<i64>>§current_first_row_index: i64

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impl OffsetIndexBuilder

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pub fn new() -> Self

Creates a new offset index builder.

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pub fn append_row_count(&mut self, row_count: i64)

Append the row count of the next page.

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pub fn append_offset_and_size(&mut self, offset: i64, compressed_page_size: i32)

Append the offset and size of the next page.

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pub fn append_unencoded_byte_array_data_bytes( &mut self, unencoded_byte_array_data_bytes: Option<i64>, )

Append the unencoded byte array data bytes of the next page.

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pub fn build_to_thrift(self) -> OffsetIndex

Build and get the thrift metadata of offset index

Trait Implementations§

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impl Default for OffsetIndexBuilder

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fn default() -> Self

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

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