# linux的默认配置,书上推荐使用csv格式#log_destination = 'stderr' # Valid values are combinations of# stderr, csvlog, jsonlog, syslog, and# eventlog, depending on platform.# csvlog and jsonlog require# logging_collector to be on.# This is used when logging to stderr:logging_collector =...
#linux连接数进程pid,用户名,应用名称,client登录时间,运行时间,后台是否等待一个lock,当前状态,sql语句 select pid,usename ,application_name,backend_start,current_timestamp - least(query_start,xact_start) as runtime,waiting,state,query from pg_stat_activity; #等待事件,根据阻塞的语句的会话PID做相应处...
\p show the contents of the query buffer \r reset (clear) the query buffer \s [FILE] display history or save it to file \w FILE write query buffer to file Input/Output \copy ... perform SQL COPY with data stream to the client host \echo [STRING] write string to standard output \...
Analyze meaningful trends and get insights into your query performance history. Tuning recommendations Collect detailed insights and receive tuning recommendations for your per-table autovacuum configuration. Clear understanding of logs with pganalyze Log Insights ...
优化Postgres的SQL查询是提高数据库性能和响应速度的关键步骤。下面是一些优化Postgres的SQL查询的方法: 1. 索引优化: - 确保表中的列有适当的索引,以加快查询速度。 ...
Benefit from insights into yourquery performance historyto detect slow queries. pganalyze lets you sort all queries on your database by different characteristics, such as “% of all runtime”, “average runtime”, or “calls per minute”. ...
--log-prefix=PREFIX 事务时间日志文件的前缀 (默认:"pgbench_log") --max-tries=NUM 运行事务的最大尝试次数(默认:1) --progress-timestamp 使用 Unix 纪元时间戳作为进度 --random-seed=SEED 设置随机种子("time", "rand", 整数) --sampling-rate=NUM 日志记录的事务比例(例如,0.01 代表 1%) ...
query!(Scripts.Repo, &1)) Ecto.Adapters.SQL.query!(Scripts.Repo, "SELECT create_history(' db name in single quotes')") This worked when we ran the file manually (meaning from the terminal we type mix run priv/repo/filename.ex). Next step is to have this run automatically when the ...
log(result.rows); // [{id: 1, name: 'Carlos'}, {id: 2, name: 'Johnru'}, ...] } { const result = await client .queryObject`SELECT ID, NAME FROM PEOPLE WHERE ID = ${1}`; console.log(result.rows); // [{id: 1, name: 'Carlos'}] } await client.end();...
This tool offers SQL query execution capabilities, allowing you to run the "Postgres list users" query easily. In addition, it offers export functions, SQL history, and more to improve your PostgreSQL database management experience.About the author Antonello Zanini Antonello is a software engineer...