*: redact arguments for Error (#20436)

[ti-srebot]

cherry-pick #20436 to release-4.0

---

What problem does this PR solve?

Issue Number: part of #18566

Problem Summary:

What is changed and how it works?

Proposal: xxx

What's Changed:

• changes in "github.com/pingcap/errors" Redact arguments for Error errors#27
  • redact errors in Error.GenWithStackByArgs & Error.FastGenByArgs
• changes in "github.com/pingcap/parser" *: redact arguments for Error parser#1051
  • define mysql.Message to bind redactArgs which means which arguments of the error need to be redacted with each error message
  • MySQLErrName should be defined with mysql.Message.
  • ErrClass.NewStd considers redactArgs
  • All errors uses ErrClass.NewStd or mysql.Message to consider error redaction
• changes in "github.com/pingcap/tidb" *: redact arguments for Error #20436
  • inherit ErrClass.NewStd
  • All errors uses ErrClass.NewStd or mysql.Message to consider error redaction
    How it Works:

Related changes

• PR to update pingcap/docs/pingcap/docs-cn: To be added

Check List

Tests

• Unit test
• Manual test (add detailed scripts or steps below)

Case 1

mysql> create table t (a int, unique key (a));
Query OK, 0 rows affected (0.00 sec)

mysql> insert into t values (1),(1);
ERROR 1062 (23000): Duplicate entry '1' for key 'a'
mysql> set @@session.tidb_redact_log=1;
Query OK, 0 rows affected (0.00 sec)

mysql> insert into t values (1),(1);
ERROR 1062 (23000): Duplicate entry '?' for key '?'

log:

[2020/10/21 14:40:05.368 +08:00] [INFO] [tidb.go:222] ["rollbackTxn for ddl/autocommit failed"]
[2020/10/21 14:40:05.368 +08:00] [INFO] [conn.go:800] ["command dispatched failed"] [conn=1] [connInfo="id:1, addr:127.0.0.1:53367 status:10, collation:utf8_general_ci, user:root"] [command=Query] [status="inTxn:0, autocommit:1"] [sql="insert into t values (1),(1)"] [txn_mode=OPTIMISTIC] [err="[kv:1062]Duplicate entry '1' for key 'a'"]
[2020/10/21 14:40:14.104 +08:00] [INFO] [tidb.go:222] ["rollbackTxn for ddl/autocommit failed"]
[2020/10/21 14:40:14.104 +08:00] [INFO] [conn.go:800] ["command dispatched failed"] [conn=1] [connInfo="id:1, addr:127.0.0.1:53367 status:10, collation:utf8_general_ci, user:root"] [command=Query] [status="inTxn:0, autocommit:1"] [sql="insert into t values ( ? ) , ( ? )"] [txn_mode=OPTIMISTIC] [err="[kv:1062]Duplicate entry '?' for key '?'"]

Case 2

Client 1:

mysql> set @@global.tidb_redact_log=1;
Query OK, 0 rows affected (0.00 sec)

Then start client 2:

mysql> insert into t values (1),(1);
ERROR 1062 (23000): Duplicate entry '?' for key '?'

log:

[2020/10/21 14:41:20.513 +08:00] [INFO] [set.go:216] ["set global var"] [conn=3] [name=tidb_redact_log] [val=1]
[2020/10/21 14:41:23.552 +08:00] [INFO] [tidb.go:222] ["rollbackTxn for ddl/autocommit failed"]
[2020/10/21 14:41:23.552 +08:00] [INFO] [conn.go:800] ["command dispatched failed"] [conn=4] [connInfo="id:4, addr:127.0.0.1:53636 status:10, collation:utf8_general_ci, user:root"] [command=Query] [status="inTxn:0, autocommit:1"] [sql="insert into t values ( ? ) , ( ? )"] [txn_mode=OPTIMISTIC] [err="[kv:1062]Duplicate entry '?' for key '?'"]

Release note

• No release note

[ti-srebot]

/run-all-tests

[ti-srebot]

@SunRunAway you're already a collaborator in bot's repo.