Contents
min_wal_size
A GUC parameter determining the minimum number of WAL files to retain for reuse at a future checkpoint
min_wal_size is a GUC parameter determining the minimum number of WAL files to retain for reuse at a future checkpoint.
min_wal_size was introduced in PostgreSQL 9.5; together with max_wal_size it replaces checkpoint_segments.
Default
Default value for min_wal_size is 80MB.
Change history
- PostgreSQL 9.5
- added, superseding
checkpoint_segments(commit 88e98230)
- added, superseding
References
- PostgreSQL documentation: min_wal_size