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MDEV-25325 built-in documentation for performance_schema tables

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Improve documentation of performance_schema tables by appending COLUMN
comments to tables. Additionally improve test coverage and update corresponding
tests.
This commit is contained in:
Haidong Ji
2021-05-02 15:43:04 -05:00
committed by Vicențiu Ciorbaru
parent edde990e35
commit 528abc749e
151 changed files with 3867 additions and 2377 deletions
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10
mysql-test/suite/perfschema/r/dml_file_instances.result
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@ -18,3 +18,13 @@ UNLOCK TABLES;
LOCK TABLES performance_schema.file_instances WRITE;
ERROR 42000: SELECT, LOCK TABLES command denied to user 'root'@'localhost' for table 'file_instances'
UNLOCK TABLES;
#
# MDEV-25325 column_comment for performance_schema tables
#
select column_name, column_comment
from information_schema.columns
where table_schema='performance_schema' and table_name='file_instances';
column_name column_comment
FILE_NAME File name.
EVENT_NAME Instrument name associated with the file.
OPEN_COUNT Open handles on the file. A value of greater than zero means that the file is currently open.