Automatic index selection

Abstract

Techniques for automatically selecting a type of vector index are provided. In one technique, in response to determining to generate a vector index based on a base table that stores a plurality of vectors, a number of the plurality of vectors is identified. Based at least on the number of the plurality of vectors, a particular type of vector index is identified from among a plurality of types of vector indexes. Examples of the plurality of types include an HNSW index and an IVF index. A vector index of the particular type is generated for the base table. Another criterion in identifying a type of vector index to generate is the number of neighbors that is a parameter in generating a certain type of vector index.

Dependencies are inferred from the claim text.