Module postings 

Posting list encoding and decoding.

Encodes sorted (DocId, term_frequency) pairs using delta-encoded doc IDs and VByte encoding. Format:

[num_docs: u32] [delta_0: vbyte] [tf_0: vbyte] [delta_1: vbyte] [tf_1: vbyte] ...

See [[inverted-index]] and [[architecture-overview#Step 1]].

Structs

BlockMaxPostingListReader

Iterates over a block-max posting list, yielding (DocId, TF) pairs.

BlockMaxPostingListWriter

Builds a posting list with per-block max TF metadata for WAND optimization.

PositionPostingListReader

Iterates over a position-aware posting list.

PositionPostingListWriter

Builds a posting list that includes term positions (for phrase queries).

PostingListReader

Iterates over a posting list, yielding (DocId, term_frequency) pairs.

PostingListWriter

Builds a posting list from sorted (doc_id, tf) pairs.

Functions

has_block_max

Check whether a posting list uses the block-max format.

has_positions

Check whether a posting list byte slice has positions encoded.