AS size from pg_database; 1. 2. 查看pg某个数据库中表占用的大小 先选中某个数据库 SELECT table_name, pg_size_pretty(table_size) AS table_size, pg_size_pretty(indexes_size) AS indexes_size, pg_size_pretty(total_size) AS total_size FROM ( SELECT table_name, pg_table_size(table_name...
pg_total_relation_size('"' || table_schema || '"."' || table_name || '"') DESC limit 20 --查出表大小按大小排序并分离data与index SELECT table_name, pg_size_pretty(table_size) AS table_size, pg_size_pretty(indexes_size) AS indexes_size, pg_size_pretty(total_size) AS total_siz...
selectrelname, pg_size_pretty(pg_relation_size(relid)) from pg_stat_user_tables where schemaname='public'order by pg_relation_size(relid) desc; 5、检查临时文件 1 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...
postgres=# select oid,* from pg_catalog.pg_tablespace; 5.4.2 表空间和对象的关系 5.4.3 查看表的存储路径与大小 查看单表大小 select pg_size_pretty(pg_relation_size('test1')); 查看所有表的大小 SELECT table_name, pg_size_pretty(table_size) AS table_size, pg_size_pretty(indexes_size) AS ...
SELECT datname FROM pg_database; 2. 查看数据库大小: SELECT pg_size_pretty(pg_database_size('your_database_name')); 3. 检查表空间使用情况: SELECT pg_size_pretty(pg_tablespace_size('your_tablespace_name')); 4. 检查表的大小和索引大小: SELECT pg_size_pretty(pg_total_relation_size('your...
pg_size_pretty(sum(total_bytes)) size_human,count(*)ASnum_contextsFROMcachesGROUPBYname, parentORDERBYSUM(total_bytes)DESC; ↩︎ Query to access all tables namedfoo*: DO$$DECLAREcnt int :=0; v record;BEGINFORvINSELECT*FROMpg_classWHERErelkind='r'andrelnameLIKE'...
PG 17 new random functions Printer Friendly Have you ever wanted to get a random integer between 1 and 10 and been a little annoyed the slightly cryptic code you had to write in PostgreSQL?PostgreSQL 17 randomfunctions make that simpler. Sometimes it's the small changes that bring the most ...
pg_size_pretty(pg_relation_size('developer.t_L_collectfile')) As justthetblsize 49.设置执行超过指定秒数的sql语句输出到日志 log_min_duration_statement = 3 50.超过一定秒数sql自动执行执行计划 shared_preload_libraries = 'auto_explain'
TO ..current_settingpg_cancel_backendpg_column_sizepg_database_sizepg_relation_sizepg_size_prettypg_tablespace_sizepg_total_relation_sizeset_configvacuum analyze verbosevacuum fullCommon Functionscast, ::coalescegenerate_seriesgreatestleastnullifrandomSequence (Serial) FunctionscurrvallastvalnextvalString ...
SELECT pg_size_pretty(pg_relation_size('index_name'));TroubleshootingWhy isn’t a query using an index?The query needs to have an ORDER BY and LIMIT, and the ORDER BY must be the result of a distance operator (not an expression) in ascending order.-- index ORDER BY embedding <=> '...