Logical expression of RedisFilterFields.
RedisFilterExpressions can be combined using the & and | operators to create complex logical expressions that evaluate to the Redis Query language.
This presents an interface by which users can create complex queries without having to know the Redis Query language.
Filter expressions are not initialized directly. Instead they are built by combining RedisFilterFields using the & and | operators.
Examples:
>>> from langchain_community.vectorstores.redis import RedisTag, RedisNum
>>> brand_is_nike = RedisTag("brand") == "nike"
>>> price_is_under_100 = RedisNum("price") < 100
>>> filter = brand_is_nike & price_is_under_100
>>> print(str(filter))
(@brand:{nike} @price:[-inf (100)])
Base class for RedisFilterFields.
RedisFilterOperator enumerator is used to create RedisFilterExpressions.
RedisFilterField representing a numeric field in a Redis index.
RedisFilterField representing a tag in a Redis index.
RedisFilterField representing a text field in a Redis index.
Schema for Redis index.
Visitor for translating structured queries to Redis filter expressions.
Redis vector database.