pg_size_pretty(pg_total_relation_size(relid)) As " table_Size", pg_size_pretty(pg_total_relation_size(relid) - pg_relation_size(relid)) as "External Size" FROM pg_catalog.pg_statio_user_tables ORDER BY pg_total_relation_size(relid) DESC; schemaname | Table | table_Size | External ...
SELECT tablespace FROM pg_tables WHERE tablename ='t1'AND schemaname ='schema1';
alter system set wal_buffers = 'xxx';,该命令会修改配置文件 postgresql.auto.conf。 effective_cache_size effective_cache_size 参数为 PostgreSQL 提供了一个可供操作系统和数据库使用的缓存估值(考虑了操作系统自身和其他应用之后)。 该参数只是一个评估值,而不是实际的分配值;它仅用于 PostgreSQL 查询计划器...
Example 1: Getting Size of All Tables Using pgAdmin’s Statistics Expand the “Schemas” option available under the "database” of your choice. Locate the “public” schema, select the “Tables” option, and click on the “statistics” tab to see the size of all tables: The output shows ...
pg_catalog | pg_statio_user_tables |view| postgres pg_catalog | pg_stats |view| postgrespublic| pg_stat_statements |view| postgres (32rows) 要了解PG,有各自的手段。 pgcenter是本文主角: digoal@pg11-test-> pgcenter --help pgCenter is a command line admin toolforPostgreSQL. ...
How to determine the size of PostgreSQL databases and tables 查看单个数据库的存储空间占用 注意把mydb替换成你实际要查看的数据库的名字 SELECTpg_size_pretty(pg_database_size('mydb')); 据我实测,300GB 的数据库查询一次耗时不到一秒: +---+|pg_size_pretty||---||325GB|+---+SELECT1Time:0.79...
8、调用tblinfo = getSchemaData(fout, &numTables);决定导出哪些数据库对象。本函数又调用如下函数,值得关注哦。为了存储每个对象的元数据,这些函数会malloc申请空间,直到pg_dump进程结束才释放。 extinfo = getExtensions(fout, &numExtensions); extinfoindex = buildIndexArray(extinfo, numExtensions, sizeof(Ext...
size-指定本地资产的大小。 CREATE TABLE 语句: CREATE TABLE container_assets(container_id varchar(36) NOT NULL,container_type varchar(16) NOT NULL,asset_id varchar(128) NOT NULL,name varchar(256) NOT NULL,description text,asset_type varchar(128) NOT NULL,owner varchar(12...
stat_statements | 1.10 | public | track planning and execution statistics of all SQL statements executedplpgsql | 1.0 | pg_catalog | PL/pgSQL procedural languagetablefunc | 1.0 | public | functions that manipulate whole tables, including crosstab | {} 6、显示模式...
min_parallel_table_scan_size:只有表的大小大于此值时才需要并行,默认为8M,可以设置为1G或更大的值。 保持与9.X相同的行为,可以关闭并行 set max_parallel_workers_per_gather = 0 当需要并行时,可以手工设置max_parallel_workers_per_gather的值 max_parallel_maintenance_workers3.3...