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Enterprise Postgres 17 SP1 Knowledge DataManagement FeatureUser's Guide

3.4 Storing Vector Data for Semantic Text Search

Vectorization for text semantic search is performed automatically according to the vectorization definition, and is saved as a vector data type column value in an internally created table so that the same text does not need to be vectorized again.

Vector data is generated and stored in the background according to the schedule specified when defining the vectorization. If new text data is added to the table on which the vectorization is defined, the corresponding vector data is automatically added asynchronously.

Information

Until the vector data has been created, the text data cannot be used for semantic text search.