PG_COMBINEBACKUP(1) PostgreSQL 18.6 Documentation PG_COMBINEBACKUP(1) (NAME) pg_combinebackup - (SYNOPSIS) pg_combinebackup [option...] [backup_directory...] (DESCRIPTION) pg_combinebackup (synthetic full backup) (incremental backup) . . . -o . pg_combinebackup . . . pg_combinebackup pg_verifybackup(1) . pg_combinebackup pg_combinebackup . . (OPTIONS) -d --debug (debug) stderr. -k --link (hard links) . ( ) ( ) . ( ) . pg_combinebackup . . (backup manifest) (checksum) . -n --dry-run -n/--dry-run pg_combinebackup . --debug . -N --no-sync pg_combinebackup . pg_combinebackup () . . -o outputdir --output=outputdir . . -T olddir=newdir --tablespace-mapping=olddir=newdir (tablespace) olddir newdir . olddir newdir . (=) . . --clone ( "reflinks" ) . . . pg_combinebackup . ( . ) Btrfs XFS ( reflink ) macOS APFS . --copy . . ( : --copy-file-range --clone -k/--link.) --copy-file-range copy_file_range . --clone . FreeBSD . copy_file_range . --manifest-checksums=algorithm pg_basebackup(1) pg_combinebackup . . : NONE CRC32C SHA224 SHA256 SHA384 SHA512. CRC32C . --no-manifest . . --sync-method=method fsync () pg_combinebackup (synchronize) . plain WAL (symbolic links) . syncfs . plain pg_combinebackup WAL . syncfs recovery_init_sync_method . --no-sync . -V --version pg_combinebackup . -? --help pg_combinebackup . (LIMITATIONS) pg_combinebackup . . pg_checksums(1) . pg_combinebackup . (ENVIRONMENT) PostgreSQL libpq ( 32.15 ). PG_COLOR . always auto never. (SEE ALSO) pg_basebackup(1) PostgreSQL 18.6 2026 PG_COMBINEBACKUP(1)