PostgreSQL Partial Replication with Logical Decoding

Using PostgreSQL's built-in logical replication slots with row filters and publication column lists (PG15+) to selectively replicate domain-specific table subsets to downstream service databases — eliminating Debezium/Kafka CDC pipelines for teams that don't yet need them. Covers publication CREATE with row filters, logical decoding output plugins, replication lag monitoring, and the slot management that prevents WAL bloat from killing your primary.

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