## 47.4. Logical Decoding SQL Interface

See Section 9.26.6, “Replication Functions” for detailed documentation on the SQL-level API for interacting with logical decoding.

Synchronous replication (see Section 26.2.8, “Synchronous Replication”) is only supported on replication slots used over the streaming replication interface. The function interface and additional, non-core interfaces do not support synchronous replication.