[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-28 UTC."],[],[],null,["# Package Properties and Attributes (0.9.0)\n\nVersion latestkeyboard_arrow_down\n\n- [0.9.0 (latest)](/python/docs/reference/langchain-google-spanner/latest/summary_property)\n- [0.8.2](/python/docs/reference/langchain-google-spanner/0.8.2/summary_property)\n- [0.7.0](/python/docs/reference/langchain-google-spanner/0.7.0/summary_property)\n- [0.6.0](/python/docs/reference/langchain-google-spanner/0.6.0/summary_property)\n- [0.5.0](/python/docs/reference/langchain-google-spanner/0.5.0/summary_property)\n- [0.4.1](/python/docs/reference/langchain-google-spanner/0.4.1/summary_property)\n- [0.3.0](/python/docs/reference/langchain-google-spanner/0.3.0/summary_property) \nSummary of entries of Properties and Attributes for langchain-google-spanner. \n\n### langchain_google_spanner.chat_message_history.SpannerChatMessageHistory.messages\n\nRetrieve the messages from Cloud Spanner.\n\nSee more: [langchain_google_spanner.chat_message_history.SpannerChatMessageHistory.messages](https://cloud.google.com/python/docs/reference/langchain-google-spanner/latest/langchain_google_spanner.chat_message_history.SpannerChatMessageHistory#langchain_google_spanner_chat_message_history_SpannerChatMessageHistory_messages) \n\n### langchain_google_spanner.vector_store.SpannerVectorStore.PGSQL_TYPES\n\nA class for managing vector stores in Google Cloud Spanner.\n\nSee more: [langchain_google_spanner.vector_store.SpannerVectorStore.PGSQL_TYPES](https://cloud.google.com/python/docs/reference/langchain-google-spanner/latest/langchain_google_spanner.vector_store.SpannerVectorStore#langchain_google_spanner_vector_store_SpannerVectorStore_PGSQL_TYPES)"]]
