pg_statio_sys_indexes
是一个 统计视图,显示当前数据库中每个系统索引的 IO 统计信息。
pg_statio_sys_indexes
添加于 PostgreSQL 7.2。
按 PostgreSQL 版本定义
pg_statio_sys_indexes (PostgreSQL 17)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Collation | Nullable | Default ---------------+--------+-----------+----------+--------- relid | oid | | | indexrelid | oid | | | schemaname | name | | | relname | name | | | indexrelname | name | | | idx_blks_read | bigint | | | idx_blks_hit | bigint | | |
pg_statio_sys_indexes (PostgreSQL 16)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Collation | Nullable | Default ---------------+--------+-----------+----------+--------- relid | oid | | | indexrelid | oid | | | schemaname | name | | | relname | name | | | indexrelname | name | | | idx_blks_read | bigint | | | idx_blks_hit | bigint | | |
pg_statio_sys_indexes (PostgreSQL 15)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Collation | Nullable | Default ---------------+--------+-----------+----------+--------- relid | oid | | | indexrelid | oid | | | schemaname | name | | | relname | name | | | indexrelname | name | | | idx_blks_read | bigint | | | idx_blks_hit | bigint | | |
pg_statio_sys_indexes (PostgreSQL 14)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Collation | Nullable | Default ---------------+--------+-----------+----------+--------- relid | oid | | | indexrelid | oid | | | schemaname | name | | | relname | name | | | indexrelname | name | | | idx_blks_read | bigint | | | idx_blks_hit | bigint | | |
pg_statio_sys_indexes (PostgreSQL 13)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Collation | Nullable | Default ---------------+--------+-----------+----------+--------- relid | oid | | | indexrelid | oid | | | schemaname | name | | | relname | name | | | indexrelname | name | | | idx_blks_read | bigint | | | idx_blks_hit | bigint | | |
pg_statio_sys_indexes (PostgreSQL 12)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Collation | Nullable | Default ---------------+--------+-----------+----------+--------- relid | oid | | | indexrelid | oid | | | schemaname | name | | | relname | name | | | indexrelname | name | | | idx_blks_read | bigint | | | idx_blks_hit | bigint | | |
pg_statio_sys_indexes (PostgreSQL 11)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Collation | Nullable | Default ---------------+--------+-----------+----------+--------- relid | oid | | | indexrelid | oid | | | schemaname | name | | | relname | name | | | indexrelname | name | | | idx_blks_read | bigint | | | idx_blks_hit | bigint | | |
pg_statio_sys_indexes (PostgreSQL 10)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Collation | Nullable | Default ---------------+--------+-----------+----------+--------- relid | oid | | | indexrelid | oid | | | schemaname | name | | | relname | name | | | indexrelname | name | | | idx_blks_read | bigint | | | idx_blks_hit | bigint | | |
pg_statio_sys_indexes (PostgreSQL 9.6)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Modifiers ---------------+--------+----------- relid | oid | indexrelid | oid | schemaname | name | relname | name | indexrelname | name | idx_blks_read | bigint | idx_blks_hit | bigint |
pg_statio_sys_indexes (PostgreSQL 9.5)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Modifiers ---------------+--------+----------- relid | oid | indexrelid | oid | schemaname | name | relname | name | indexrelname | name | idx_blks_read | bigint | idx_blks_hit | bigint |
pg_statio_sys_indexes (PostgreSQL 9.4)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Modifiers ---------------+--------+----------- relid | oid | indexrelid | oid | schemaname | name | relname | name | indexrelname | name | idx_blks_read | bigint | idx_blks_hit | bigint |
pg_statio_sys_indexes (PostgreSQL 9.3)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Modifiers ---------------+--------+----------- relid | oid | indexrelid | oid | schemaname | name | relname | name | indexrelname | name | idx_blks_read | bigint | idx_blks_hit | bigint |
pg_statio_sys_indexes (PostgreSQL 9.2)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Modifiers ---------------+--------+----------- relid | oid | indexrelid | oid | schemaname | name | relname | name | indexrelname | name | idx_blks_read | bigint | idx_blks_hit | bigint |
pg_statio_sys_indexes (PostgreSQL 9.1)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Modifiers ---------------+--------+----------- relid | oid | indexrelid | oid | schemaname | name | relname | name | indexrelname | name | idx_blks_read | bigint | idx_blks_hit | bigint |
pg_statio_sys_indexes (PostgreSQL 9.0)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Modifiers ---------------+--------+----------- relid | oid | indexrelid | oid | schemaname | name | relname | name | indexrelname | name | idx_blks_read | bigint | idx_blks_hit | bigint |
pg_statio_sys_indexes (PostgreSQL 8.4)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Modifiers ---------------+--------+----------- relid | oid | indexrelid | oid | schemaname | name | relname | name | indexrelname | name | idx_blks_read | bigint | idx_blks_hit | bigint | View definition: SELECT pg_statio_all_indexes.relid, pg_statio_all_indexes.indexrelid, pg_statio_all_indexes.schemaname, pg_statio_all_indexes.relname, pg_statio_all_indexes.indexrelname, pg_statio_all_indexes.idx_blks_read, pg_statio_all_indexes.idx_blks_hit FROM pg_statio_all_indexes WHERE (pg_statio_all_indexes.schemaname = ANY (ARRAY['pg_catalog'::name, 'information_schema'::name])) OR pg_statio_all_indexes.schemaname ~ '^pg_toast'::text;
pg_statio_sys_indexes (PostgreSQL 8.3)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Modifiers ---------------+--------+----------- relid | oid | indexrelid | oid | schemaname | name | relname | name | indexrelname | name | idx_blks_read | bigint | idx_blks_hit | bigint | View definition: SELECT pg_statio_all_indexes.relid, pg_statio_all_indexes.indexrelid, pg_statio_all_indexes.schemaname, pg_statio_all_indexes.relname, pg_statio_all_indexes.indexrelname, pg_statio_all_indexes.idx_blks_read, pg_statio_all_indexes.idx_blks_hit FROM pg_statio_all_indexes WHERE (pg_statio_all_indexes.schemaname = ANY (ARRAY['pg_catalog'::name, 'information_schema'::name])) OR pg_statio_all_indexes.schemaname ~ '^pg_toast'::text;
pg_statio_sys_indexes (PostgreSQL 8.2)
View "pg_catalog.pg_statio_sys_indexes" Column | Type | Modifiers ---------------+--------+----------- relid | oid | indexrelid | oid | schemaname | name | relname | name | indexrelname | name | idx_blks_read | bigint | idx_blks_hit | bigint | View definition: SELECT pg_statio_all_indexes.relid, pg_statio_all_indexes.indexrelid, pg_statio_all_indexes.schemaname, pg_statio_all_indexes.relname, pg_statio_all_indexes.indexrelname, pg_statio_all_indexes.idx_blks_read, pg_statio_all_indexes.idx_blks_hit FROM pg_statio_all_indexes WHERE pg_statio_all_indexes.schemaname = ANY (ARRAY['pg_catalog'::name, 'pg_toast'::name, 'information_schema'::name]);
更改历史记录
- PostgreSQL 7.2
- 添加 (提交 8d80b0d9)
示例
示例内容
postgres=# SELECT * FROM pg_statio_sys_indexes LIMIT 1\gx -[ RECORD 1 ]-+--------------------------------- relid | 2619 indexrelid | 2696 schemaname | pg_catalog relname | pg_statistic indexrelname | pg_statistic_relid_att_inh_index idx_blks_read | 235 idx_blks_hit | 114637047
参考
- PostgreSQL 文档: pg_statio_sys_indexes