wal_segment_size is a preset configuration parameter reporting the size of a WAL segment.
wal_segment_size was added in PostgreSQL 8.4.
The default value for
The value can be influenced in the following ways:
- a different default value may have been set with the
--with-wal-segsizeconfiguration option at compile time (PostgreSQL 8.4 and later)
- a different value for the cluster may have been set by with the
--wal-segsize(PostgreSQL 11 and later)
wal_segment_size cannot be modified.