# 48.3. Streaming Replication Protocol Interface

The commands

* `CREATE_REPLICATION_SLOT`` `*`slot_name`* LOGICAL *`output_plugin`*
* `DROP_REPLICATION_SLOT`` `*`slot_name`* \[ `WAIT` ]
* `START_REPLICATION SLOT`` `*`slot_name`* LOGICAL ...

are used to create, drop, and stream changes from a replication slot, respectively. These commands are only available over a replication connection; they cannot be used via SQL. See [Section 52.4](https://www.postgresql.org/docs/13/protocol-replication.html) for details on these commands.

The command [pg\_recvlogical](https://www.postgresql.org/docs/13/app-pgrecvlogical.html) can be used to control logical decoding over a streaming replication connection. (It uses these commands internally.)


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