JingsongLi opened a new pull request, #231:
URL: https://github.com/apache/paimon-rust/pull/231
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### Purpose
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Subtask of #227
Introduce a complete Tantivy-based full-text search pipeline for global
indexes, with on-demand I/O throughout:
- ArchiveDirectory: reads only the archive header eagerly; file data is
loaded via async FileRead when Tantivy requests it (sync-to-async bridge using
std::thread::scope).
- TantivyFullTextWriter: streams the packed archive directly to an
OutputFile instead of buffering in memory.
- TantivyFullTextReader: opens from InputFile/FileRead, never loads the full
archive into memory.
- FullTextSearchBuilder: self-contained builder on Table that reads the
index manifest, evaluates searches against multiple Tantivy indexes in parallel
(try_join_all), and returns ScoredGlobalIndexResult.
- ScoredGlobalIndexResult + bitmap_to_ranges moved to table/source.rs
(alongside RowRange) so vector search can reuse them later.
- TableScan.with_row_ranges(): generic row-range filtering, decoupled from
full-text specifics.
- DataFusion full_text_search UDTF integration with test data.
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### Brief change log
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### Tests
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### API and Format
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### Documentation
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