tustvold commented on a change in pull request #1284:
URL: https://github.com/apache/arrow-rs/pull/1284#discussion_r801510562
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File path: parquet/src/encodings/decoding.rs
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@@ -431,232 +433,254 @@ pub struct DeltaBitPackDecoder<T: DataType> {
initialized: bool,
// Header info
- num_values: usize,
- num_mini_blocks: i64,
+ // The number of values in each block
+ block_size: usize,
+ /// The number of values in the current page
+ values_left: usize,
+ /// The number of mini-blocks in each block
+ mini_blocks_per_block: usize,
+ /// The number of values in each mini block
values_per_mini_block: usize,
- values_current_mini_block: usize,
- first_value: i64,
- first_value_read: bool,
// Per block info
- min_delta: i64,
+ /// The minimum delta in the block
+ min_delta: T::T,
Review comment:
We decode and operate on `T::T` instead of converting everything to i64
and back
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