SELECT datname, temp_files AS"Temporary files",temp_bytes AS"Size of temporary files"FROM pg_stat_database ; 临时文件是按后端或会话连接存储的文件,它们可用作资源池或缓冲区。这些文件与共享资源空间分开存储。 重要提示:视图 pg_stat_database 中的 temp_files 和 temp_bytes 列收集聚合中的统计信息(...
select t1.datname AS db_name, pg_size_pretty(pg_database_size(t1.datname)) as db_size from pg_database t1 order by pg_database_size(t1.datname) desc;#shcema size: SELECT schema_name, pg_size_pretty(sum(table_size)::bigint) as "disk space", (sum(table_size) / pg_database_s...
playboy=> \l #\加上字母l,相当于mysql的,mysql> show databases; List of databases Name | Owner | Encoding ---+---+--- playboy | postgres | UTF8 postgres | postgres | UTF8 template0 | postgres | UTF8 template1 | postgres | UTF8 playboy=> select pg_database_size('playboy'); #查...
select pg_database_size('test'),pg_size_pretty(pg_database_size('test')); --查看test数据库大小(显示会慢) select pg_size_pretty(pg_relation_size('test1')); --查看连接数据库test1表的大小(不包括索引) select pg_size_pretty(pg_total_relation_size('test1')); --查看连接数据库test1表的...
When Postgres accesses data for a query, the tables and indexes first pass through the buffer cache, which is a fixed-size in-memory cache, configured by the setting. Query performance can often rely on whether the query’s data is already in the cache or whether it has to access the un...
If you store large files, like images or PDFs, in your database, consider separating them into a lower-cost storage option to reduce database size and resources needed for backup and restores. You may want to purge static historical data or move into an archival store o...
"@dbeaver-show-template-db@": "false", "@dbeaver-show-unavailable-db@": "false", "show-database-statistics": "true", "@dbeaver-read-all-data-types-db@": "false", "read-keys-with-columns": "false", "@dbeaver-use-prepared-statements-db@": "false", "postgresql.dd.plain.string...
Reliable replication at any table size with checkpointing and chunking of database reads.The contents below include a 'Quick Start' guide, advanced setup steps, and reference information (data type mapping, and changelogs). See here to troubleshooting issues with the Postgres connector.Please...
Database Size is Big: Your database has gotten big, with 100+ GBs of data.2 Application is Growing: Your application is growing fast in terms of things like number of users, amount of data, amount of concurrent activity, and rollout of new features in your application that add ...
SKIP_DATABASE_STATS[boolean]ONLY_DATABASE_STATS[boolean]BUFFER_USAGE_LIMIT size --- 缓冲区使用限...