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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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14
mysql-test/suite/perfschema/r/dml_socket_instances.result
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@ -18,3 +18,17 @@ UNLOCK TABLES;
LOCK TABLES performance_schema.socket_instances WRITE;
ERROR 42000: SELECT, LOCK TABLES command denied to user 'root'@'localhost' for table 'socket_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='socket_instances';
column_name column_comment
EVENT_NAME NAME from the setup_instruments table, and the name of the wait/io/socket/* instrument that produced the event.
OBJECT_INSTANCE_BEGIN Memory address of the object.
THREAD_ID Thread identifier that the server assigns to each socket.
SOCKET_ID The socket's internal file handle.
IP Client IP address. Blank for Unix socket file, otherwise an IPv4 or IPv6 address. Together with the PORT identifies the connection.
PORT TCP/IP port number, from 0 to 65535. Together with the IP identifies the connection.
STATE Socket status, either IDLE if waiting to receive a request from a client, or ACTIVE