Data type cache entry invalidation and temporary tables Planner: incremental sorting during Merge Join New function array_reverse Functions min and max for the type bytea Parallel worker usage statistics New function pg_ls_summariesdir new contrib module: pg_logicalsnapinspect ...
Get all tables. C# publicSystem.Collections.Generic.IAsyncEnumerable<string>GetTablesAsync(System.Threading.CancellationToken cancellationToken =default); Parameters cancellationToken CancellationToken TheCancellationTokento monitor for cancellation requests. The default isNone. ...
我们可以通过使用视图检查活元组和死元组的数量来确认这一点pg_stat_all_tables: postgres=#从pg_stat_all_tables中选择n_live_tup、n_dead_tup、relname,其中relname='store';n_live_tup|n_dead_tup|relname---+---+--- 1 | 1 | store (1行) 正如预期的那样,有 1 个活动元组(更新后的行)和 1 ...
//修改模式“abc”拥有者为:dbadminALTERSCHEMA abc OWNERTO"dbadmin";//查看模式的拥有者,相当于\du元命令SELECTn.nspnameAS"Name", pg_catalog.pg_get_userbyid(n.nspowner)AS"Owner"FROMpg_catalog.pg_namespace nWHEREn.nspname!~'^pg_'ANDn.nspname<>'information_schema'ORDERBY1; AI代码助手复制...
'blogdb' database, otherwise you'll get the OID of the 'public' -- namespace for the database you're currently connected to. blogdb=# select to_regnamespace('public')::oid; to_regnamespace --- 2200 (1 row) -- Now let's list all the tables, indexes, etc. that live in this...
SQL>select * from user_tables; 用户 1.查看当前用户的缺省表空间 SQL>select username,default_tablespace from user_users; 2.查看当前用户的角色 SQL>select * from user_role_privs; 3.查看当前用户的系统权限和表级权限 SQL>select * from user_sys_privs; ...
Get Databases, Tables & Columns : SELECT table_schema,table_name,column_name FROM information_schema.columnsSELECT A Certain Row : SELECT column_name FROM information_schema.columns LIMIT 1 OFFSET 0; #Returns row 0. SELECT column_name FROM information_schema.columns LIMIT 1 OFFSET 1; #...
--no-data-for-failed-tables 缺省情况下,即使创建表失败了,如该表已经存在,数据加载的操作也不会停止,这样的结果就是很容易导致大量的重复数据被插入到该表中。如果带有该选项,那么一旦出现针对该表的任何错误,对该数据表的加载将被忽略。 --role=rolename 以指定的角色名执行restore的操作。通常而言,如果连...
(table); orderedTables.add(table); } } private static Map<String, Integer> getColumnDataTypes(Connection connection, String tableName) throws SQLException { Map<String, Integer> columnDataTypes = new HashMap<>(); // 获取数据库元数据 DatabaseMetaData metaData = connection.getMetaData(); // ...
public | test_1_prt_1000| table | digoal postgres=# \d test Table "public.test" Column | Type | Modifiers ---+---+--- id | bigint | info | text | crt_time | timestamp without time zone | Number of child tables: 1000 (Use \d+ to list them.) postgres=# \d+ test Table...