Add support for showing global vgtid executed

[harshit-gangal]

Signed-off-by: Harshit Gangal harshit@planetscale.com

Description

This PR adds a new query to show vgtid i.e. group all the current gtid_executed.

mysql> show global vgtid_executed;
+----------+------------------------------------------------------------------------------------------------+
| keyspace | global vgtid_executed                                                                          |
+----------+------------------------------------------------------------------------------------------------+
| commerce | shard_gtids:<keyspace:"commerce" shard:"0" gtid:"bfb145e3-98ec-11eb-b9a7-98af65a6dc4a:1-23" >  |
+----------+------------------------------------------------------------------------------------------------+
1 row in set (0.01 sec)

Related Issue(s)

• resolves feature request: VTGate support for retrieving GTIDs from shards #7400

Checklist

• Tests were added or are not required
• Documentation was added or is not required

Deployment Notes

Impacted Areas in Vitess

Components that this PR will affect:

• Query Serving

[systay]

nice. much easier on the eyes

[deepthi]

@harshit-gangal based on our discussion this morning, isn't the syntax going to change?

[harshit-gangal]

@harshit-gangal based on our discussion this morning, isn't the syntax going to change?

We will be keeping this and also have one for shard GTIDs

[deepthi]

@harshit-gangal based on our discussion this morning, isn't the syntax going to change?

We will be keeping this and also have one for shard GTIDs

Then this doesn't really fix #7400, correct? Should that issue be re-opened?