PG_STAT_DATABASE视图将包含集群中每个数据库的数据库统计信息。 表1 PG_STAT_DATABASE字段 名称 类型 描述 datid oid 数据库的OID。 datname name 这个数据库的名称。 numbackends integer 当前连接到该数据库的后端数。 这是在返回一个反映目前状态值的视图中唯一的列;自上次重置所有其他列返回累积值。
PG_SETTINGS PG_SHADOW PG_SHARED_MEMORY_DETAIL PG_STAT_ACTIVITY PG_STAT_ALL_INDEXES PG_STAT_ALL_TABLES PG_STAT_BAD_BLOCK PG_STAT_BGWRITER PG_STAT_DATABASE PG_STAT_DATABASE_CONFLICTS PG_STAT_REPLICATION PG_STAT_SYS_INDEXES PG_STAT_SYS_TABLES PG_STAT_USER_FUNCTIONS PG_...
postgres pg_stat_database视图,pg_stat_database视图列类型描述datid(gp含有)oid数据库的OIDdatname(gp)name这个数据库的名字numbackends(gp)integer当前连接到该数据库的后端数。这是在返回一个反映目前状态值的视图中唯一的列;自上次重置所有其他列返回累积值。x
浏览器右上角查看导航按钮>>> pg_stat_database视图
pg_stat_database的字段tup_returned,tup_fetched含义 简介:--以前一直对tup_returned,tup_fetched的意思有疑惑,不知道两者之间的区别到底是什么,官网解释如下:tup_returned:Number of rows retu... --以前一直对tup_returned,tup_fetched的意思有疑惑,不知道两者之间的区别到底是什么,官网解释如下:...
pg_stat_statements模块提供追踪服务器所执行的所有SQL语句的执行统计信息。 该模块必须通过在postgresql.conf的shared_preload_libraries中增加pg_stat_statements来载入,因为它需要额外的共享内存。这意味着增加或移除该模块需要一次服务器重启。 当pg_stat_statements被载入时,它会跟踪该服务器的所有数据库的统计信息。该...
UTC [24] LOG: database system was shut down at 2020-11-02 10:16:05 UTC ... UTC [1] LOG: database system is ready to accept connections ... UTC [28] WARNING: could not open statistics file "pg_stat_tmp/global.stat": Stale file handle Here the volume is mount...
I'm confused about the write_location and flush_location of pg_stat_replication view . The document say, write_location stands for last transaction log position written to disk by this standby server , flush_location stands for Last transaction log position flushed to disk by this standby...
Particularly on a production database you want to know which statements cause the most pain and should be optimized. From here (another big hitter in the PostgreSQL field): If you use Postgres and you haven’t yet used pg_stat_statements, it is a must to add it to your toolbox. This...
pg_exporter_last_scrape_duration_seconds:pg_exporter上次抓取持续时间秒[lw] pg_exporter_last_scrape_error:pg_exporter上次抓取错误[lw] pg_exporter_scrapes_total:pg_exporter采集总数[lw] pg_locks_count:锁计数[lw] pg_replication_slots_active:复制槽活动[lw] pg_replication_slots_pg_wal_lsn_diff:[lw...