[commands] show help on backslash commands \? options show help on psql command-line options \? variables show help on special variables \h [NAME] help on syntax of SQL commands, * for all commands Query Buffer \e [FILE] [LINE] edit the query buffer (or file) with external editor \e...
\? options show help on psql command-line options \? variables show help on special variables \h [NAME] help on syntax of SQL commands, * for all commands...使用\h命令可以获取 SQL 命令相关的帮助信息:hrdb=> \hAvailable help: ABORT CREATE FOREIGN DATA WRAPPER DROP ROUTINE ALTER AGGREGATE ...
recovery.conf restore_command='cp /opt/buxlog/%f %p' 52.重建索引 REINDEX { INDEX | TABLE | DATABASE | SYSTEM } name [ FORCE ] INDEX 重新建立声明了的索引。 TABLE 重新建立声明的表的所有索引。如果表有个从属的"TOAST"表,那么这个表也会重新索引。 DATABASE 重建当前数据库里的所有索引。 除非在...
-P, --progress=NUM 每 NUM 秒显示线程进度报告 -r, --report-per-command 每个命令报告延迟、失败和重试 -R, --rate=NUM 目标事务每秒速率 -s, --scale=NUM 在输出中报告此缩放因子 -t, --transactions=NUM 每个客户端运行的事务数(默认:10) -T, --time=NUM 基准测试持续时间(秒) -v, --vacuum...
select name,setting from pg_settings where name in ($$archive_mode$$,$$autovacuum$$,$$archive_command$$); "建议: " " 建议开启自动垃圾回收, 开启归档. " "--归档统计信息" select pg_xlogfile_name(pg_current_xlog_location()) now_xlog, * from pg_stat_archiver; ...
列举表,相当于mysql的show tables(当前已经在ambari数据库) 代码语言:javascript 复制 ambari=> \dt List of relations Schema | Name | Type | Owner ---+---+---+--- ambari | adminpermission | table | postgres ambari | adminprincipal | table | postgres ambari | adminprincipaltype | table | ...
recovery.conf restore_command='cp /opt/buxlog/%f %p' 52.重建索引 REINDEX { INDEX | TABLE | DATABASE | SYSTEM } name [ FORCE ] INDEX 重新建立声明了的索引。 TABLE 重新建立声明的表的所有索引。如果表有个从属的"TOAST"表,那么这个表也会重新索引。 DATABASE ...
Use the heroku pg:info command to check whether connection pooling is available for your database. If it is, the Connection Pooling field is listed as Available:$ heroku pg:info === DATABASE_URL Plan: Private 2 Status: Available HA Status: Available Data Size: 2.23 GB Tables: 83 PG ...
Re-run this command for each schema you expect to replicate data from: GRANT USAGE ON SCHEMA <schema_name> TO <user_name>;GRANT SELECT ON ALL TABLES IN SCHEMA <schema_name> TO <user_name>;ALTER DEFAULT PRIVILEGES IN SCHEMA <schema_name> GRANT SELECT ON TABLES TO <user_name>;...
Make sure the DLE running command contains the environment variable--env DOCKER_API_VERSION="1.41". The maximum supported Docker API version is 1.41, but the client version (1.42) is too new. How to get help To get help, reach out to the Postgres.ai team and the growing community of Da...