pg_statio_user_sequences
A statistics view showing IO statistics for each user sequence
pg_statio_user_sequences is a statistics view showing IO statistics for each user sequence in the current database.
pg_statio_user_sequences was added in PostgreSQL 7.2.
Definition by PostgreSQL version
pg_statio_user_sequences (PostgreSQL 16)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Collation | Nullable | Default
------------+--------+-----------+----------+---------
relid | oid | | |
schemaname | name | | |
relname | name | | |
blks_read | bigint | | |
blks_hit | bigint | | |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 15)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Collation | Nullable | Default
------------+--------+-----------+----------+---------
relid | oid | | |
schemaname | name | | |
relname | name | | |
blks_read | bigint | | |
blks_hit | bigint | | |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 14)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Collation | Nullable | Default
------------+--------+-----------+----------+---------
relid | oid | | |
schemaname | name | | |
relname | name | | |
blks_read | bigint | | |
blks_hit | bigint | | |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 13)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Collation | Nullable | Default
------------+--------+-----------+----------+---------
relid | oid | | |
schemaname | name | | |
relname | name | | |
blks_read | bigint | | |
blks_hit | bigint | | |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 12)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Collation | Nullable | Default
------------+--------+-----------+----------+---------
relid | oid | | |
schemaname | name | | |
relname | name | | |
blks_read | bigint | | |
blks_hit | bigint | | |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 11)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Collation | Nullable | Default
------------+--------+-----------+----------+---------
relid | oid | | |
schemaname | name | | |
relname | name | | |
blks_read | bigint | | |
blks_hit | bigint | | |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 10)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Collation | Nullable | Default
------------+--------+-----------+----------+---------
relid | oid | | |
schemaname | name | | |
relname | name | | |
blks_read | bigint | | |
blks_hit | bigint | | |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 9.6)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Modifiers
------------+--------+-----------
relid | oid |
schemaname | name |
relname | name |
blks_read | bigint |
blks_hit | bigint |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 9.5)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Modifiers
------------+--------+-----------
relid | oid |
schemaname | name |
relname | name |
blks_read | bigint |
blks_hit | bigint |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 9.4)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Modifiers
------------+--------+-----------
relid | oid |
schemaname | name |
relname | name |
blks_read | bigint |
blks_hit | bigint |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 9.3)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Modifiers
------------+--------+-----------
relid | oid |
schemaname | name |
relname | name |
blks_read | bigint |
blks_hit | bigint |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 9.2)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Modifiers
------------+--------+-----------
relid | oid |
schemaname | name |
relname | name |
blks_read | bigint |
blks_hit | bigint |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 9.1)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Modifiers
------------+--------+-----------
relid | oid |
schemaname | name |
relname | name |
blks_read | bigint |
blks_hit | bigint |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 9.0)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Modifiers
------------+--------+-----------
relid | oid |
schemaname | name |
relname | name |
blks_read | bigint |
blks_hit | bigint |
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 8.4)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Modifiers
------------+--------+-----------
relid | oid |
schemaname | name |
relname | name |
blks_read | bigint |
blks_hit | bigint |
View definition:
SELECT pg_statio_all_sequences.relid, pg_statio_all_sequences.schemaname, pg_statio_all_sequences.relname, pg_statio_all_sequences.blks_read, pg_statio_all_sequences.blks_hit
FROM pg_statio_all_sequences
WHERE (pg_statio_all_sequences.schemaname <> ALL (ARRAY['pg_catalog'::name, 'information_schema'::name])) AND pg_statio_all_sequences.schemaname !~ '^pg_toast'::text;
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 8.3)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Modifiers
------------+--------+-----------
relid | oid |
schemaname | name |
relname | name |
blks_read | bigint |
blks_hit | bigint |
View definition:
SELECT pg_statio_all_sequences.relid, pg_statio_all_sequences.schemaname, pg_statio_all_sequences.relname, pg_statio_all_sequences.blks_read, pg_statio_all_sequences.blks_hit
FROM pg_statio_all_sequences
WHERE (pg_statio_all_sequences.schemaname <> ALL (ARRAY['pg_catalog'::name, 'information_schema'::name])) AND pg_statio_all_sequences.schemaname !~ '^pg_toast'::text;
Documentation: pg_statio_user_sequences
pg_statio_user_sequences (PostgreSQL 8.2)
View "pg_catalog.pg_statio_user_sequences"
Column | Type | Modifiers
------------+--------+-----------
relid | oid |
schemaname | name |
relname | name |
blks_read | bigint |
blks_hit | bigint |
View definition:
SELECT pg_statio_all_sequences.relid, pg_statio_all_sequences.schemaname, pg_statio_all_sequences.relname, pg_statio_all_sequences.blks_read, pg_statio_all_sequences.blks_hit
FROM pg_statio_all_sequences
WHERE pg_statio_all_sequences.schemaname <> ALL (ARRAY['pg_catalog'::name, 'pg_toast'::name, 'information_schema'::name]);
Documentation: pg_statio_user_sequences
Change history
- PostgreSQL 7.2
- added (commit 8d80b0d9)
Examples
Sample contents of pg_statio_user_sequences:
postgres=# SELECT * FROM pg_statio_user_sequences WHERE relname LIKE 'class%'; relid | schemaname | relname | blks_read | blks_hit -------+------------+---------------------------------------+-----------+---------- 16805 | app | class_class_id_seq | 4 | 1 16813 | app | class_external_link_group_celg_id_seq | 4 | 1 16830 | app | class_property_class_property_id_seq | 4 | 1 (3 rows)
References
- PostgreSQL documentation: pg_statio_user_sequences
