gpadmin=# \d gp_db_interfaces

Table "pg_catalog.gp_db_interfaces"
Column | Type | Modifiers 
-------------+----------+-----------
dbid | smallint | not null
interfaceid | smallint | not null
priority | smallint | not null

Indexes:
"gp_db_interfaces_dbid_index" btree (dbid), tablespace "pg_global"

Tablespace: "pg_global"