Overview - Upstash Documentation

Field operators provide precise control over how individual fields are matched. Use these when simple value matching doesn’t meet your needs.

Operator	Supported Field Types	Description	Example
`$smart`	all	Intelligent multi-stage matching (default behavior)	`{"name": {"$smart": "wireless"}}`
`$eq`	all	Exact equality	`{"status": {"$eq": "active"}}`
`$in`	all	Match any of multiple values	`{"status": {"$in": ["active", "pending"]}}`
`$gt`, `$gte`, `$lt`, `$lte`	numeric, date, keyword	Range comparison	`{"price": {"$gt": 10, "$lt": 100}}`
`$phrase`	text	Phrase matching with optional slop and prefix	`{"text": {"$phrase": {"query": "hello world", "slop": 1}}}`
`$fuzzy`	text	Typo-tolerant matching (Levenshtein distance)	`{"name": {"$fuzzy": {"term": "wireles", "distance": 1}}}`
`$regex`	text	Regular expression pattern matching	`{"name": {"$regex": "wire.*"}}`
`$boost`	modifier (on any operator)	Adjust relevance score weight	`{"name": {"$eq": "wireless", "$boost": 2.0}}`