select nspname from pg_namespace where nspname = 'pgperf';
 nspname 
---------
 pgperf
(1 row)

set search_path to pgperf;
SET
Output format is unaligned.
Field separator is " | ".
List of relations
Schema | Name | Type | Owner
pgperf | snapshot | table | pgperf
pgperf | snapshot_pg_current_xlog | table | pgperf
pgperf | snapshot_pg_database_size | table | pgperf
pgperf | snapshot_pg_locks | table | pgperf
pgperf | snapshot_pg_relation_size | table | pgperf
pgperf | snapshot_pg_stat_activity | table | pgperf
pgperf | snapshot_pg_stat_archiver | table | pgperf
pgperf | snapshot_pg_stat_bgwriter | table | pgperf
pgperf | snapshot_pg_stat_database | table | pgperf
pgperf | snapshot_pg_stat_database_conflicts | table | pgperf
pgperf | snapshot_pg_stat_replication | table | pgperf
pgperf | snapshot_pg_stat_statements | table | pgperf
pgperf | snapshot_pg_stat_user_functions | table | pgperf
pgperf | snapshot_pg_stat_user_indexes | table | pgperf
pgperf | snapshot_pg_stat_user_tables | table | pgperf
pgperf | snapshot_pg_statio_user_indexes | table | pgperf
pgperf | snapshot_pg_statio_user_sequences | table | pgperf
pgperf | snapshot_pg_statio_user_tables | table | pgperf
pgperf | snapshot_pg_stats | table | pgperf
pgperf | snapshot_pgstatindex | table | pgperf
pgperf | snapshot_pgstattuple | table | pgperf
(21 rows)
Output format is aligned.
Field separator is " | ".
             Table "pgperf.snapshot"
 Column |            Type             | Modifiers 
--------+-----------------------------+-----------
 sid    | integer                     | not null
 ts     | timestamp without time zone | not null
 level  | integer                     | not null
Indexes:
    "snapshot_pkey" PRIMARY KEY, btree (sid)
    "snapshot_ts_idx" btree (ts)