Valkey: Indexing and searching

This documentation is part of the Search and JSON guide. You can view the complete guide here: Store and query JSON documents with the Valkey search module.

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Create an index once, and Valkey keeps it up to date for every key matching your prefix, even for keys written before the index was created:

FT.CREATE productsIndex
  ON HASH
  PREFIX 1 product:
  SCHEMA
    name TEXT
    brand TAG
    price NUMERIC

You can query your indexed data with powerful search commands:

# Exact tag match
FT.SEARCH productsIndex "@brand:{Bianca}"

# Numeric range
FT.SEARCH productsIndex "@price:[0 500]"

# Combined query
FT.SEARCH productsIndex "@brand:{Bianca} @price:[0 500]"

# Full-text search by name
FT.SEARCH productsIndex "espresso"

You can also run aggregations on the same index with FT.AGGREGATE. The FT.INFO command allows you to check the index status, including the progress of background indexing jobs.

JSON documents are also indexable. When the JSON module is enabled, you can use ON JSON and JSONPath expressions in your schema.