标签：
explain analyze ,format,buffers,
format :TEXT, XML, JSON, or YAML.
EXPLAIN (ANALYZE,buffers,format yaml) SELECT first_name FROM
customer_master WHERE first_name = ‘Carolee‘;
PostgreSQL环境中查看SQL执行计划示例
原文地址：http://www.cnblogs.com/songyuejie/p/4728345.html
