Admins-Mac-mini-2:snapshot admin$ pg_controldata data
pg_control version number:            942
Catalog version number:               201409291
Database system identifier:           6289438103631020068
Database cluster state:               in production
pg_control last modified:             Sun May 28 12:18:53 2017
Latest checkpoint location:           46/66000028
Prior checkpoint location:            46/65000060
Latest checkpoint's REDO location:    46/66000028
Latest checkpoint's REDO WAL file:    000000070000004600000066
Latest checkpoint's TimeLineID:       7
Latest checkpoint's PrevTimeLineID:   7
Latest checkpoint's full_page_writes: on
Latest checkpoint's NextXID:          0/362387
Latest checkpoint's NextOID:          33775
Latest checkpoint's NextMultiXactId:  335
Latest checkpoint's NextMultiOffset:  770
Latest checkpoint's oldestXID:        1820
Latest checkpoint's oldestXID's DB:   1
Latest checkpoint's oldestActiveXID:  0
Latest checkpoint's oldestMultiXid:   1
Latest checkpoint's oldestMulti's DB: 1
Time of latest checkpoint:            Sun May 28 12:18:53 2017
Fake LSN counter for unlogged rels:   0/1
Minimum recovery ending location:     0/0
Min recovery ending loc's timeline:   0
Backup start location:                0/0
Backup end location:                  0/0
End-of-backup record required:        no
Current wal_level setting:            minimal
Current wal_log_hints setting:        off
Current max_connections setting:      100
Current max_worker_processes setting: 8
Current max_prepared_xacts setting:   0
Current max_locks_per_xact setting:   64
Maximum data alignment:               8
Database block size:                  8192
Blocks per segment of large relation: 131072
WAL block size:                       8192
Bytes per WAL segment:                16777216
Maximum length of identifiers:        64
Maximum columns in an index:          32
Maximum size of a TOAST chunk:        1996
Size of a large-object chunk:         2048
Date/time type storage:               64-bit integers
Float4 argument passing:              by value
Float8 argument passing:              by value
Data page checksum version:           0