AnalyticDB

AnalyticDB (distributed PostgreSQL) vector store.

AnalyticDB is a distributed full postgresql syntax cloud-native database.

• connection_string is a postgres connection string.
• embedding_function any embedding function implementing langchain.embeddings.base.Embeddings interface.
• collection_name is the name of the collection to use. (default: langchain)
  • NOTE: This is not the name of the table, but the name of the collection. The tables will be created when initializing the store (if not exists) So, make sure the user has the right permissions to create tables.
• pre_delete_collection if True, will delete the collection if it exists. (default: False)
  • Useful for testing.