SELECT cron.schedule('* * * * *', 'REFRESH MATERIALIZED VIEW CONCURRENTLY user_info_mv WITH DATA;'); 5. 刷新操作后的验证方式 刷新物化视图后,可以通过查询物化视图中的数据来验证刷新是否成功。如果物化视图中的数据已经更新为最新的底层表数据,则说明刷新成功。例如: sql SELECT * FROM user_info_mv...
BACKUP DATABASE:SQL command executed at the scheduled time. 2. Refreshing a Materialized View Code: -- Refresh a materialized view every 6 hoursSELECTcron.schedule('refresh_view','0 */6 * * *',$$ REFRESH MATERIALIZEDVIEWmy_view $$); Copy Explanation: The cron expression (0 */6 * * ...
CREATE TABLE materialized_view_refresh_schedule ( id SERIAL PRIMARY KEY, materialized_view_name citext NOT NULL, refresh_interval interval NOT NULL, last_attempted_at timestamp with time zone, maximum_execution_duration interval NOT NULL DEFAULT '00:30:00'::interval);CREATE UNIQUE INDEX materialized...
2)create table as … 3)create materialized view 或 refresh materialized view 4)alter table … auto vacuum 当auto vacuum进程运行时,ring buffer值为NBuffers / 32 / autovacuum_max_workers 。 六、函数解析 1、BufferDesc -- 共享缓冲区的共享描述符(状态)数据 typedef struct BufferDesc { //buffer ta...
Supported refresh PostgreSQL Materialized Views with CONCURRENTLY option. Fixed exporting numbers to Excel issue. "column "start_value" does not exist" error occurred when accessing PostgreSQL 10 Sequences. Fixed importing connections with Settings Location issue. Fixed ER diagram layout issue. Table gro...
-- 构建触发器(不推荐)createor replacefunctiontri_ten_month_goods_func()returnstriggeras$$declarebeginrefreshmaterializedviewconcurrentlyten_month_goodswith data;returnnull;end; $$languageplpgsql;-- 表插入、更新、删除时都会触发刷新视图,但是如果刷新速度很慢的话,会使CURD的操作很久才能正常响应完成,不推荐...
PostgreSQL Tested for version 8+ Job Schedule Alter Schedule, Drop Job Schedule, Enable/Disable Job ScheduleInfo Job Steps Create Job StepJob Steps Job Step Alter Job Step, Drop Job Step, Enable/Disable Job StepInfo, Run Log [1]DbVisualizer Pro ...
analyze_test_db=>REFRESH MATERIALIZEDVIEWmv_pgbench_join_tables;REFRESH MATERIALIZEDVIEW During creation as well as during the refresh of the materialized view, there isn’t lag on the logical replication with data being actively inserted on the underlying tables: ...
有数据变化时刷新方法: postgres=# copy tdapg_main from '/data/pgxz/TDAPG_main.txt'; COPY 100002 Time: 1201.774 ms postgres=# select count(1) from tdapg_main; count \--- 300006 (1 row) Time: 23.164 ms postgres=# REFRESH MATERIALIZED VIEW TDAPG_main_count; REFRESH MATERIALIZED VIEW Tim...
ALTER EVENT TRIGGER CLOSE CREATE TEXT SEARCH CONFIGURATION DROP OWNED REFRESH MATERIALIZED VIEW gitlabhq_production-# \l //查看数据库 List of databases Name | Owner | Encoding | Collate | Ctype | Access privileges ---+---+---+---+---+--- gitlabhq_production | gitlab | UTF8 | en_US...