PG数据库explain使用场景
时间: 2023-09-14 15:11:00 浏览: 124
回答: PG数据库的EXPLAIN命令用于查询SQL语句的执行计划,它可以帮助我们了解SQL语句是如何被PG数据库引擎执行的。通常,在优化和调优SQL语句时,我们可以使用EXPLAIN命令来分析查询语句的性能问题,并根据执行计划进行相应的优化。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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