This is a document for PGroonga 2.X and 3.X. See PGroonga 1.x document when you're using old PGroonga.

`pgroonga_wal_resource_manager` module

Since 3.2.1.

Available in PostgreSQL 15 or higher.

Summary

The pgroonga_wal_resource_manager module automatically applies PGroonga's WAL using the PostgreSQL Custom WAL Resource Managers.

If you enable WAL Resource Manager support, use PostgreSQL's Custom WAL Resource Managers feature. See Streaming replication by WAL resource manager for details.

You must configure on the primary and standby the following parameters to use pgroonga_wal_resource_manager module:

For example:

shared_preload_libraries = 'pgroonga_wal_resource_manager'

For example:

pgroonga.enable_wal_resource_manager = yes

Do not set pgroonga.enable_wal = yes together
- The WAL size suppression effect, which is one of the advantages of this module, will no longer be available
If you enable this module, do not enable crash-safer in standby
- In standby, this module recovers
- Primary does not recover, so if you want to make it crash-safe, you must enable crash-safer