aquarapid

Bypass normalization of already prepared statements.

6

* The normalization we do in vtgate during planning before checking the plan cache is expensive for large statements (think multi-value inserts). * For statements that are already prepared, normalizing...

Signed-off-by: Jacques Grove

I have a (test) operator cluster YAML that has a keyspace section looking like this: ``` keyspaces: - name: main partitionings: - equal: parts: 2 shardTemplate: databaseInitScriptSecret: name: example-cluster-config key:...

vtgate does not implement COM_STATISTICS

11

Pretty minor, but logging in case it comes up: With the result that you don't get server uptime and anything in server stats when executing "\s" via the mysql client....

### Overview of the Issue If you have a sequence definition like: ``` CREATE TABLE t1_seq ( id bigint unsigned NOT NULL, next_id bigint unsigned, cache bigint unsigned, PRIMARY KEY...

vtgate does not pass back any (?) warnings from MySQLd via vttablet in some cases

2

When you insert a duplicate row with mysql using `insert ignore`, you get a warning. Via vtgate, you get no warnings, viz. (via vtgate): ``` mysql> create table t1 (c1...

Explain sequence table values better on sequences page

1

On the page: https://vitess.io/docs/reference/vitess-sequences/ we do not really explain the significance of the various sequence table values (including, for example, cache). There is a partial explanation elsewhere, e.g. on https://vitess.io/docs/user-guides/resharding/...

CreateLookupVindex against a table where lookup column is the "last" column in the table fails

1

Recent-ish build (from June): Sharded keyspace: ``` $ vtctlclient -server localhost:15999 ListAllTablets zone1-0000000200 keyspace2 -40 master 192.168.0.134:15200 192.168.0.134:17200 [] 2021-08-19T21:36:26Z zone1-0000000201 keyspace2 40-80 master 192.168.0.134:15201 192.168.0.134:17201 [] 2021-08-19T21:36:26Z zone1-0000000202 keyspace2...

Fix wording to reflect poor performance of initial query before optimization

4

### What is changed, added or deleted? (Required) Fix wording in the explain walkthrough, the current working seems to imply that the initial performance is good (which it is not)....

Fix all the /media links to relative, since it tends to break pandoc conversion to pdf

4

Does not affect inline markdown rendering in GH, since `/media` == `./media` for those purposes. I would assume that the conversion for the docs.pingcap.com site would still work fine too....