pg_namespace
A system table containing schema definitions
pg_namespace is a system catalogue table containing schema definitions.
pg_namespace was introduced in PostgreSQL 7.3.
psql commands
\dnlists the available schemas
Definition by PostgreSQL version
pg_namespace (PostgreSQL 16)
Table "pg_catalog.pg_namespace"
Column | Type | Collation | Nullable | Default
----------+-----------+-----------+----------+---------
oid | oid | | not null |
nspname | name | | not null |
nspowner | oid | | not null |
nspacl | aclitem[] | | |
Indexes:
"pg_namespace_oid_index" PRIMARY KEY, btree (oid)
"pg_namespace_nspname_index" UNIQUE CONSTRAINT, btree (nspname)
Documentation: pg_namespace
pg_namespace (PostgreSQL 15)
Table "pg_catalog.pg_namespace"
Column | Type | Collation | Nullable | Default
----------+-----------+-----------+----------+---------
oid | oid | | not null |
nspname | name | | not null |
nspowner | oid | | not null |
nspacl | aclitem[] | | |
Indexes:
"pg_namespace_oid_index" PRIMARY KEY, btree (oid)
"pg_namespace_nspname_index" UNIQUE CONSTRAINT, btree (nspname)
Documentation: pg_namespace
pg_namespace (PostgreSQL 14)
Table "pg_catalog.pg_namespace"
Column | Type | Collation | Nullable | Default
----------+-----------+-----------+----------+---------
oid | oid | | not null |
nspname | name | | not null |
nspowner | oid | | not null |
nspacl | aclitem[] | | |
Indexes:
"pg_namespace_oid_index" PRIMARY KEY, btree (oid)
"pg_namespace_nspname_index" UNIQUE CONSTRAINT, btree (nspname)
Documentation: pg_namespace
pg_namespace (PostgreSQL 13)
Table "pg_catalog.pg_namespace"
Column | Type | Collation | Nullable | Default
----------+-----------+-----------+----------+---------
oid | oid | | not null |
nspname | name | | not null |
nspowner | oid | | not null |
nspacl | aclitem[] | | |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 12)
Table "pg_catalog.pg_namespace"
Column | Type | Collation | Nullable | Default
----------+-----------+-----------+----------+---------
oid | oid | | not null |
nspname | name | | not null |
nspowner | oid | | not null |
nspacl | aclitem[] | | |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 11)
Table "pg_catalog.pg_namespace"
Column | Type | Collation | Nullable | Default
----------+-----------+-----------+----------+---------
nspname | name | | not null |
nspowner | oid | | not null |
nspacl | aclitem[] | | |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 10)
Table "pg_catalog.pg_namespace"
Column | Type | Collation | Nullable | Default
----------+-----------+-----------+----------+---------
nspname | name | | not null |
nspowner | oid | | not null |
nspacl | aclitem[] | | |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 9.6)
Table "pg_catalog.pg_namespace"
Column | Type | Modifiers
----------+-----------+-----------
nspname | name | not null
nspowner | oid | not null
nspacl | aclitem[] |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 9.5)
Table "pg_catalog.pg_namespace"
Column | Type | Modifiers
----------+-----------+-----------
nspname | name | not null
nspowner | oid | not null
nspacl | aclitem[] |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 9.4)
Table "pg_catalog.pg_namespace"
Column | Type | Modifiers
----------+-----------+-----------
nspname | name | not null
nspowner | oid | not null
nspacl | aclitem[] |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 9.3)
Table "pg_catalog.pg_namespace"
Column | Type | Modifiers
----------+-----------+-----------
nspname | name | not null
nspowner | oid | not null
nspacl | aclitem[] |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 9.2)
Table "pg_catalog.pg_namespace"
Column | Type | Modifiers
----------+-----------+-----------
nspname | name | not null
nspowner | oid | not null
nspacl | aclitem[] |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 9.1)
Table "pg_catalog.pg_namespace"
Column | Type | Modifiers
----------+-----------+-----------
nspname | name | not null
nspowner | oid | not null
nspacl | aclitem[] |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 9.0)
Table "pg_catalog.pg_namespace"
Column | Type | Modifiers
----------+-----------+-----------
nspname | name | not null
nspowner | oid | not null
nspacl | aclitem[] |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 8.4)
Table "pg_catalog.pg_namespace"
Column | Type | Modifiers
----------+-----------+-----------
nspname | name | not null
nspowner | oid | not null
nspacl | aclitem[] |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 8.3)
Table "pg_catalog.pg_namespace"
Column | Type | Modifiers
----------+-----------+-----------
nspname | name | not null
nspowner | oid | not null
nspacl | aclitem[] |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
pg_namespace (PostgreSQL 8.2)
Table "pg_catalog.pg_namespace"
Column | Type | Modifiers
----------+-----------+-----------
nspname | name | not null
nspowner | oid | not null
nspacl | aclitem[] |
Indexes:
"pg_namespace_nspname_index" UNIQUE, btree (nspname)
"pg_namespace_oid_index" UNIQUE, btree (oid)
Documentation: pg_namespace
Change history
This table has not been modified since it was added in PostgreSQL 7.3.
- PostgreSQL 7.3
- (commit a25b94c0)
Examples
postgres=# CREATE SCHEMA someschema; CREATE SCHEMA
postgres=# \dn List of schemas Name | Owner ------------+---------- public | postgres someschema | postgres (2 rows) postgres=# SELECT * FROM pg_namespace; nspname | nspowner | nspacl --------------------+----------+------------------------------------- pg_toast | 10 | pg_temp_1 | 10 | pg_toast_temp_1 | 10 | pg_catalog | 10 | {postgres=UC/postgres,=U/postgres} public | 10 | {postgres=UC/postgres,=UC/postgres} information_schema | 10 | {postgres=UC/postgres,=U/postgres} someschema | 10 | (7 rows)
References
- PostgreSQL documentation: pg_namespace
