## Summary
Fixes#12962
- Adds a two-pass ILIKE fallback to the global search service
(`search.service.ts`)
- **Fast path**: runs the tsvector query first (uses GIN index,
sub-millisecond)
- **Fallback**: only if tsvector returns fewer results than the limit,
runs an ILIKE query on `searchVector::text` to catch cases where
PostgreSQL's `simple` text search config fails to tokenize (continuous
CJK text, etc.)
- Zero performance impact for the common case (Latin text where tsvector
works)
- Also adds `escapeForIlike` utility to properly escape `%`, `_`, `\` in
user input
### Why tsvector fails for CJK
PostgreSQL's `simple` config treats continuous CJK text as a single
lexeme:
- `to_tsvector('simple', '示例商业线索')` → `'示例商业线索':1`
- Searching `商业:*` only prefix-matches from the start, so it misses `商业`
in the middle
The ILIKE fallback catches these substring matches when the tsvector
path can't.
### What this fixes
- Global search (command menu / sidebar)
- Relation picker (single and multi-object)
- Morph relation picker
All three use `search.service.ts` under the hood.
Co-authored-by: mykh-hailo (original direction in #18021)
## Test plan
- [ ] Search `示例` with records `示例商业线索` and `示例-商业-线索` → both should
appear
- [ ] Search `商业` → both should appear (previously only the hyphenated
one did)
- [ ] Search for Latin text (e.g. `john`) → same performance, results
unchanged
- [ ] Relation picker search with CJK text → results appear
- [ ] Search input with special chars like `%` or `_` → no SQL
injection, results correct
Made with [Cursor](https://cursor.com)
---------
Co-authored-by: mykh-hailo <mykh-hailo@users.noreply.github.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
