Replication slots в PostgreSQL

By themselves, replication slots occupy very little disk space They just store tiny bit of metadata, including a pointer to a position in WAL

Specifies the maximum number of replication slots that the server can support The default is 10

postgresql create replication slot Currently postgres doesn't allow dropping a replication slot that's active This can make certain operations more time-consuming or stuck in production

postgresql replication slot If the max_wal_size parameter is too low, PostgreSQL may delete WAL data before it has been streamed to BigQuery, which can cause the