hologres

Hologres API vector store.

• connection_string is a hologres connection string.
• embedding_function any embedding function implementing langchain.embeddings.base.Embeddings interface.
• ndims is the number of dimensions of the embedding output.
• table_name is the name of the table to store embeddings and data. (default: langchain_pg_embedding)
  • NOTE: The table will be created when initializing the store (if not exists) So, make sure the user has the right permissions to create tables.
• pre_delete_table if True, will delete the table if it exists. (default: False)
  • Useful for testing.