langchain.cache.SQLAlchemyCache¶
class langchain.cache.SQLAlchemyCache(engine: ~sqlalchemy.engine.base.Engine, cache_schema: ~typing.Type[~langchain.cache.FullLLMCache] = <class 'langchain.cache.FullLLMCache'>)[source]¶
Cache that uses SQAlchemy as a backend.
Initialize by creating all tables.
Methods
__init__(engine[, cache_schema])
Initialize by creating all tables.
clear(**kwargs)
Clear cache.
lookup(prompt, llm_string)
Look up based on prompt and llm_string.
update(prompt, llm_string, return_val)
Update based on prompt and llm_string.
__init__(engine: ~sqlalchemy.engine.base.Engine, cache_schema: ~typing.Type[~langchain.cache.FullLLMCache] = <class 'langchain.cache.FullLLMCache'>)[source]¶
Initialize by creating all tables.
clear(**kwargs: Any) → None[source]¶
Clear cache.
lookup(prompt: str, llm_string: str) → Optional[Sequence[Generation]][source]¶
Look up based on prompt and llm_string.
update(prompt: str, llm_string: str, return_val: Sequence[Generation]) → None[source]¶
Update based on prompt and llm_string.
Examples using SQLAlchemyCache¶
LLM Caching integrations