在MySQL 数据库中,慢查询日志是非常重要的功能,它可以帮助我们找出性能瓶颈,优化数据库查询。而 Rows_sent 是一个可以帮助我们理解查询返回了多少行的关键指标。本篇文章将指导你如何实现和监控 MySQL 中的 Rows_sent。 流程概述 首先,我们将整个流程分为几个步骤,如下表所示: 下面,我们将详细介绍每一个步骤。 步...
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you can see which queries may be the cause and get detailed metrics for them。这是一个慢查询日...
Rows_sent A description for this Status Variable has not yet been added to this Documentation. See also: Status Variables for MariaDB Enterprise Server 11.4, in 10.6 ES, in 10.5 ES, in 10.4 ES, in 10.3 ES, in 10.2 ES, in 10.6 CS, in 10.5 CS, in 10.4 CS, in 10.3 CS, and in ...
query_test.test_fetch.TestFetch.test_rows_sent_counters[protocol: beeswax | exec_option: {'test_replan': 1, 'batch_size': 0, 'num_nodes': 0, 'disable_codegen_rows_threshold': 0, 'disable_codegen': True, 'abort_on_error':
{code} > query_test.test_fetch.TestFetch.test_rows_sent_counters[protocol: beeswax | > exec_option: {'test_replan': 1, 'batch_size': 0, 'num_nodes': 0, > 'disable_codegen_rows_threshold': 0, 'disable_codegen': True, > 'abort_on_error': 1, 'exec_single_node_rows_threshold'...
# Query_time: 8.477847 Lock_time: 0.000056 Rows_sent: 1 Rows_examined: 2 SET timestamp=1323239916; select * from ores where adviseurid=5 and tctabelid=244 and single='1' order by datum asc; As you can see the rows send and rows examined are low, the lock time is also low. ...
你的猜测是对的,就是索引使用不当造成的 0 回复 smart哥 2021-08-18 17:59:41 你具体怎么测试的? 0 回复 提问者 已婚单身狗 #1 就是课程视频里面的呀,3-6章,3分47秒处,rows sent 18.5M,rows examine21.88k。18.5M肯定是大于21.88k呀 回复 2021-08-18 19:13:43 相似...
Description This performance counter relates to the measurement of Analysis Services storage engine queries and it measures the total rows of data sent by Analysis Services to client applications, in response to queries. The value of this counter is reset whenever the service is restarted. This shou...
December 08, 2011 03:46AM Re: Query time of over 8 secs while rows_sent: 1 and rows_examined: 2? 1511 Matthew Montgomery December 11, 2011 11:20PM Sorry, you can't reply to this topic. It has been closed.Content reproduced on this site is the property of the respective copyright...