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RleEncoder

alopex_core::columnar::encoding_v2

Struct RleEncoder 

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pub struct RleEncoder;
Expand description

Run-Length encoder for Bool and Int64.

Format: count(u32) + has_bitmap(u8) + bitmap? + run_count(u32) + {value, run_len}*

  • For Bool: value is 1 byte (0 or 1)
  • For Int64: value is 8 bytes (i64 LE)
  • run_len is u32 LE

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impl Encoder for RleEncoder

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fn encode(&self, data: &Column, null_bitmap: Option<&Bitmap>) -> Result<Vec<u8>>

Encode column data with optional null bitmap.
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fn encoding_type(&self) -> EncodingV2

Get the encoding type.

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