docs: phrase prefix and slop in text search

[DavIvek]

Release note

Document the "…"* (phrase prefix) and "…"~N (slop / proximity) Tantivy query modifiers in text_search.search. A new Phrase prefix and proximity search section on the text search page explains that phrase prefix matches an ordered phrase whose leading terms are exact and last term is a prefix (the exact-match counterpart of fuzzy_phrase_search, min two terms), and that slop matches phrase terms within N positions of each other. Both apply to named (data.-prefixed) properties as well as search_all and the _edges variants.

Related product PRs

PRs from product repo this doc page is related to:

⚠️ Blocked — keep in draft until the dependency lands. There is no Memgraph product PR yet. Per-property (data.<prop>:) phrase-prefix/slop currently degrades silently because the modifiers are dropped on Tantivy JSON fields; the fix is upstream in Tantivy:

• fix(query-parser): honor phrase prefix and slop on JSON fields quickwit-oss/tantivy#2966

Merging this doc requires that fix to ship in a Tantivy release and a bump of the pinned tantivy version in mgcxx/text_search/Cargo.toml (we pin 0.25.0). No Memgraph C++/Rust changes are needed beyond the version bump — all search paths already route through QueryParser::parse_query.

Checklist:

• Add appropriate milestone (current release cycle)
• Add bugfix or feature label, based on the product PR type you're documenting
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• Check all content with Grammarly
• Perform a self-review of my code
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Project	Deployment	Actions	Updated (UTC)
documentation	Ready	Preview	Aug 18, 2026 8:35am