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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 is part of the patch covering newer columns and tables in 10.5.
This commit is contained in:
Haidong Ji
2021-05-02 15:43:04 -05:00
committed by Vicențiu Ciorbaru
parent 7c33ecb665
commit cc71dc0b61
23 changed files with 383 additions and 219 deletions
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10
mysql-test/suite/perfschema/r/dml_file_instances.result
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@ -87,3 +87,13 @@ DROP TABLE t_db_26152751;
SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%";
FILE_NAME
DROP DATABASE db_26152751;
#
# MDEV-25325 column_comment for performance_shcema 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.