Logical Decoding Output Writers
It is possible to add more output methods for logical decoding. For details, see src/backend/replication/logical/logicalfuncs.c . Essentially, three functions need to be provided: one to read WAL, one to prepare writing output, and one to write the output (see Section 46.6.5 ).
|Logical Decoding Output Plugins||Up||Synchronous Replication Support for Logical Decoding|