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PostgreSQL 执行语句后,有办法知道语句中用到哪些表的哪些字段吗?
sundyandy
·
Jul 16, 2019
· 1462 views
This topic created in 2527 days ago, the information mentioned may be changed or developed.
比如执行了
select a,b,c from table where d = '123';
可以有什么渠道或统计信息,知道这个语句用到了 table 表的 a,b,c,d 吗?
多表联查呢?
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语句
table
联查
字段
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