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En este documento, se muestra cómo usar las incorporaciones almacenadas para generar índices y consultar incorporaciones. Para obtener más información sobre el almacenamiento de incorporaciones, consulta Almacena incorporaciones de vectores.
Puedes crear índices ScaNN, IVF, IVFFlat y HNSW con AlloyDB.
Antes de comenzar
Antes de comenzar a crear índices, debes completar los siguientes requisitos previos.
[[["Fácil de comprender","easyToUnderstand","thumb-up"],["Resolvió mi problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Información o código de muestra incorrectos","incorrectInformationOrSampleCode","thumb-down"],["Faltan la información o los ejemplos que necesito","missingTheInformationSamplesINeed","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Otro","otherDown","thumb-down"]],["Última actualización: 2025-04-21 (UTC)"],[[["This document explains how to create and use `ScaNN`, `IVF`, `IVFFlat`, and `HNSW` indexes with AlloyDB to query stored embeddings."],["Before creating indexes, ensure that embedding vectors are added to a table, the `vector` extension (version 0.5.0 or later) is installed, and the `alloydb_scann` extension is installed for `ScaNN` indexes."],["If you are upgrading to AlloyDB Omni, you must drop any indexes created with the older `postgres_ann` extension and recreate them using the `alloydb_scann` extension."],["The `alloydb_scann` extension is a prerequisite for creating ScaNN indexes and can be used with PostgreSQL 14 and 15 compatible databases."],["The `ScaNN` index feature is in Pre-GA and subject to limited support, according to the Pre-GA Offerings Terms in the Service Specific Terms."]]],[]]
