Tantivy v0.22

What's Changed

Tantivy 0.22 will be able to read indices created with Tantivy 0.21.

Fix null byte handling in JSON paths (null bytes in json keys caused panic during indexing) #2345(@PSeitz)
Fix bug that can cause get_docids_for_value_range to panic. #2295(@fulmicoton)
Avoid 1 document indices by increase min memory to 15MB for indexing #2176(@PSeitz)
Fix merge panic for JSON fields #2284(@PSeitz)
Fix bug occuring when merging JSON object indexed with positions. #2253(@fulmicoton)
Fix empty DateHistogram gap bug #2183(@PSeitz)
Fix range query end check (fields with less than 1 value per doc are affected) #2226(@PSeitz)
Handle exclusive out of bounds ranges on fastfield range queries #2174(@PSeitz)

Tantivy documents as a trait: Index data directly without converting to tantivy types first #2071(@ChillFish8)
encode some part of posting list as -1 instead of direct values (smaller inverted indices) #2185(@trinity-1686a)
Aggregation
- Support to deserialize f64 from string #2311(@PSeitz)
- Add a top_hits aggregator #2198(@ditsuke)
- Support bool type in term aggregation #2318(@PSeitz)
- Support ip adresses in term aggregation #2319(@PSeitz)
- Support date type in term aggregation #2172(@PSeitz)
- Support escaped dot when addressing field #2250(@PSeitz)

@imotov made their first contribution in https://github.com/quickwit-oss/tantivy/pull/2160
@PingXia-at made their first contribution in https://github.com/quickwit-oss/tantivy/pull/2173
@giovannicuccu made their first contribution in https://github.com/quickwit-oss/tantivy/pull/2235
@BlackHoleFox made their first contribution in https://github.com/quickwit-oss/tantivy/pull/2265
@ditsuke made their first contribution in https://github.com/quickwit-oss/tantivy/pull/2282
@MochiXu made their first contribution in https://github.com/quickwit-oss/tantivy/pull/2312

Full Changelog: https://github.com/quickwit-oss/tantivy/compare/0.21...v0.22.0