The pg_compression system catalog table describes the compression methods available.
| column | type | modifers | storage | description |
|---|---|---|---|---|
compname |
name | not null | plain | Name of the compression |
compconstructor |
regproc | not null | plain | Name of compression constructor |
compdestructor |
regproc | not null | plain | Name of compression destructor |
compcompressor |
regproc | not null | plain | Name of the compressor |
compdecompressor |
regproc | not null | plain | Name of the decompressor |
compvalidator |
regproc | not null | plain | Name of the compression validator |
compowner |
oid | not null | plain | oid from pg_authid |
Parent topic: System Catalogs Definitions
