几个不错的pg 监控工具
以下是梳理的几个不错的pg 监控工具，方便分析pg的性能问题
pg_stat_statements
http://www.postgres.cn/docs/11/pgstatstatements.html
pg_top
https://github.com/markwkm/pg_top
pg_systat
https://github.com/pg-systat/pg_systat
pg_proctab
https://github.com/markwkm/pg_proctab
pgdash
https://github.com/rapidloop/pgdash
pgmetrics
https://github.com/rapidloop/pgmetrics
pgbadger
https://github.com/darold/pgbadger
pgcluu
https://github.com/darold/pgcluu
