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Target customers: ApsaraDB RDS for PostgreSQL users. Features released: ApsaraDB RDS for PostgreSQL 11 supports the index feature of Elasticsearch. You can create indexes in an ApsaraDB RDS for PostgreSQL instance to accelerate queries. Data is automatically written to Elasticsearch and indexes are created without having to manually synchronize data between ApsaraDB RDS for PostgreSQL and Elasticsearch. When you query data from RDS, query conditions are automatically sent to and retrieved by Elasticsearch. This feature can be used to accelerate full-text queries, fuzzy queries, and union queries of multiple fields.