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528abc749e
Improve documentation of performance_schema tables by appending COLUMN comments to tables. Additionally improve test coverage and update corresponding tests.
30 lines
1.4 KiB
Plaintext
30 lines
1.4 KiB
Plaintext
select * from performance_schema.cond_instances limit 1;
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select * from performance_schema.cond_instances
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where name='FOO';
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insert into performance_schema.cond_instances
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set name='FOO', object_instance_begin=12;
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ERROR 42000: INSERT command denied to user 'root'@'localhost' for table 'cond_instances'
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update performance_schema.cond_instances
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set name='FOO';
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ERROR 42000: UPDATE command denied to user 'root'@'localhost' for table 'cond_instances'
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delete from performance_schema.cond_instances
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where name like "wait/%";
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ERROR 42000: DELETE command denied to user 'root'@'localhost' for table 'cond_instances'
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delete from performance_schema.cond_instances;
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ERROR 42000: DELETE command denied to user 'root'@'localhost' for table 'cond_instances'
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LOCK TABLES performance_schema.cond_instances READ;
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ERROR 42000: SELECT, LOCK TABLES command denied to user 'root'@'localhost' for table 'cond_instances'
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UNLOCK TABLES;
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LOCK TABLES performance_schema.cond_instances WRITE;
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ERROR 42000: SELECT, LOCK TABLES command denied to user 'root'@'localhost' for table 'cond_instances'
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UNLOCK TABLES;
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#
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# MDEV-25325 column_comment for performance_schema tables
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#
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select column_name, column_comment
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from information_schema.columns
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where table_schema='performance_schema' and table_name='cond_instances';
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column_name column_comment
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NAME Client user name for the connection, or NULL if an internal thread.
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OBJECT_INSTANCE_BEGIN Address in memory of the instrumented condition.
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