Click here to fast deploy a Hologres cloud instance.#!pip install psycopg2from langchain.embeddings.openai import OpenAIEmbeddingsfrom langchain.text_splitter import CharacterTextSplitterfrom langchain.vectorstores import HologresSplit documents and get embeddings by call OpenAI APIfrom langchain.document_loaders import TextLoaderloader = TextLoader("../../modules/state_of_the_union.txt")documents = loader.load()text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)docs = text_splitter.split_documents(documents)embeddings = OpenAIEmbeddings()Connect to Hologres by setting related ENVIRONMENTS.export PG_HOST={host}export PG_PORT={port} # Optional, default is 80export PG_DATABASE={db_name} # Optional, default is postgresexport PG_USER={username}export PG_PASSWORD={password}Then store your embeddings and documents into Hologresimport osconnection_string = Hologres.connection_string_from_db_params(    host=os.environ.get("PGHOST", "localhost"),    port=int(os.environ.get("PGPORT", "80")),    database=os.environ.get("PGDATABASE", "postgres"),    user=os.environ.get("PGUSER", "postgres"),    password=os.environ.get("PGPASSWORD", "postgres"),)vector_db = Hologres.from_documents(    docs,    embeddings,    connection_string=connection_string,    table_name="langchain_example_embeddings",)Query and retrieve dataquery = "What did the president say about Ketanji Brown Jackson"docs = vector_db.similarity_search(query)print(docs[0].page_content)    Tonight. I call on the Senate to: Pass the Freedom to Vote Act. Pass the John Lewis Voting Rights Act. And while you‚Äôre at it, pass the Disclose Act so Americans can know who is funding our elections.         Tonight, I‚Äôd like to honor someone who has dedicated his life to serve this country: Justice Stephen Breyer‚Äîan Army veteran, Constitutional scholar, and retiring Justice of the United States Supreme Court. Justice Breyer, thank you for your service.         One of the most serious constitutional
Hologres is a unified real-time data warehousing service developed by Alibaba Cloud. You can use Hologres to write, update, process, and analyze large amounts of data in real time.
Hologres is a unified real-time data warehousing service developed by Alibaba Cloud. You can use Hologres to write, update, process, and analyze large amounts of data in real time. ->: Click here to fast deploy a Hologres cloud instance.#!pip install psycopg2from langchain.embeddings.openai import OpenAIEmbeddingsfrom langchain.text_splitter import CharacterTextSplitterfrom langchain.vectorstores import HologresSplit documents and get embeddings by call OpenAI APIfrom langchain.document_loaders import TextLoaderloader = TextLoader("../../modules/state_of_the_union.txt")documents = loader.load()text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)docs = text_splitter.split_documents(documents)embeddings = OpenAIEmbeddings()Connect to Hologres by setting related ENVIRONMENTS.export PG_HOST={host}export PG_PORT={port} # Optional, default is 80export PG_DATABASE={db_name} # Optional, default is postgresexport PG_USER={username}export PG_PASSWORD={password}Then store your embeddings and documents into Hologresimport osconnection_string = Hologres.connection_string_from_db_params(    host=os.environ.get("PGHOST", "localhost"),    port=int(os.environ.get("PGPORT", "80")),    database=os.environ.get("PGDATABASE", "postgres"),    user=os.environ.get("PGUSER", "postgres"),    password=os.environ.get("PGPASSWORD", "postgres"),)vector_db = Hologres.from_documents(    docs,    embeddings,    connection_string=connection_string,    table_name="langchain_example_embeddings",)Query and retrieve dataquery = "What did the president say about Ketanji Brown Jackson"docs = vector_db.similarity_search(query)print(docs[0].page_content)    Tonight. I call on the Senate to: Pass the Freedom to Vote Act. Pass the John Lewis Voting Rights Act. And while you‚Äôre at it, pass the Disclose Act so Americans can know who is funding our elections.         Tonight, I‚Äôd like to honor someone who has dedicated his life to serve this country: Justice Stephen Breyer‚Äîan Army veteran, Constitutional scholar, and retiring Justice of the United States Supreme Court. Justice Breyer, thank you for your service.         One of the most serious constitutional