errno: move the error code from the parser/mysql to tidb/errno

ddl/sequence_test.go

@@ -19,9 +19,9 @@ import (
 	. "github.com/pingcap/check"
 	"github.com/pingcap/parser/auth"
 	"github.com/pingcap/parser/model"
-	"github.com/pingcap/parser/mysql"
 	"github.com/pingcap/parser/terror"
 	"github.com/pingcap/tidb/ddl"
+	mysql "github.com/pingcap/tidb/errno"
 	"github.com/pingcap/tidb/session"
 	"github.com/pingcap/tidb/table/tables"
 	"github.com/pingcap/tidb/util/testkit"

domain/domain.go

@@ -27,12 +27,12 @@ import (
 	"github.com/pingcap/failpoint"
 	"github.com/pingcap/parser/ast"
 	"github.com/pingcap/parser/model"
-	"github.com/pingcap/parser/mysql"
 	"github.com/pingcap/parser/terror"
 	"github.com/pingcap/tidb/bindinfo"
 	"github.com/pingcap/tidb/config"
 	"github.com/pingcap/tidb/ddl"
 	"github.com/pingcap/tidb/domain/infosync"
+	"github.com/pingcap/tidb/errno"
 	"github.com/pingcap/tidb/infoschema"
 	"github.com/pingcap/tidb/infoschema/perfschema"
 	"github.com/pingcap/tidb/kv"
@@ -1158,8 +1158,8 @@ func recoverInDomain(funcName string, quit bool) {
 
 var (
 	// ErrInfoSchemaExpired returns the error that information schema is out of date.
-	ErrInfoSchemaExpired = terror.ClassDomain.New(mysql.ErrInfoSchemaExpired, mysql.MySQLErrName[mysql.ErrInfoSchemaExpired])
+	ErrInfoSchemaExpired = terror.ClassDomain.New(errno.ErrInfoSchemaExpired, errno.MySQLErrName[errno.ErrInfoSchemaExpired])
 	// ErrInfoSchemaChanged returns the error that information schema is changed.
-	ErrInfoSchemaChanged = terror.ClassDomain.New(mysql.ErrInfoSchemaChanged,
-		mysql.MySQLErrName[mysql.ErrInfoSchemaChanged]+". "+kv.TxnRetryableMark)
+	ErrInfoSchemaChanged = terror.ClassDomain.New(errno.ErrInfoSchemaChanged,
+		errno.MySQLErrName[errno.ErrInfoSchemaChanged]+". "+kv.TxnRetryableMark)
 )

domain/domain_test.go

@@ -27,9 +27,9 @@ import (
 	"github.com/pingcap/failpoint"
 	"github.com/pingcap/parser/ast"
 	"github.com/pingcap/parser/model"
-	"github.com/pingcap/parser/mysql"
 	"github.com/pingcap/tidb/ddl"
 	"github.com/pingcap/tidb/domain/infosync"
+	"github.com/pingcap/tidb/errno"
 	"github.com/pingcap/tidb/kv"
 	"github.com/pingcap/tidb/meta"
 	"github.com/pingcap/tidb/metrics"
@@ -453,6 +453,6 @@ func (*testSuite) TestSessionPool(c *C) {
 }
 
 func (*testSuite) TestErrorCode(c *C) {
-	c.Assert(int(ErrInfoSchemaExpired.ToSQLError().Code), Equals, mysql.ErrInfoSchemaExpired)
-	c.Assert(int(ErrInfoSchemaChanged.ToSQLError().Code), Equals, mysql.ErrInfoSchemaChanged)
+	c.Assert(int(ErrInfoSchemaExpired.ToSQLError().Code), Equals, errno.ErrInfoSchemaExpired)
+	c.Assert(int(ErrInfoSchemaChanged.ToSQLError().Code), Equals, errno.ErrInfoSchemaChanged)
 }

executor/errors.go

@@ -14,8 +14,8 @@
 package executor
 
 import (
-	"github.com/pingcap/parser/mysql"
 	"github.com/pingcap/parser/terror"
+	mysql "github.com/pingcap/tidb/errno"
 )
 
 // Error instances.

executor/seqtest/seq_executor_test.go

@@ -43,6 +43,7 @@ import (
 	"github.com/pingcap/tidb/ddl"
 	ddltestutil "github.com/pingcap/tidb/ddl/testutil"
 	"github.com/pingcap/tidb/domain"
+	"github.com/pingcap/tidb/errno"
 	"github.com/pingcap/tidb/executor"
 	"github.com/pingcap/tidb/kv"
 	"github.com/pingcap/tidb/meta/autoid"
@@ -1213,7 +1214,7 @@ func (s *seqTestSuite) TestAutoRandIDRetry(c *C) {
 	tk.MustExec("insert into t values ()")
 	c.Assert(failpoint.Enable(fpName, `return(true)`), IsNil)
 	// Insertion failure will skip the 6 in retryInfo.
-	tk.MustGetErrCode("commit", mysql.ErrTxnRetryable)
+	tk.MustGetErrCode("commit", errno.ErrTxnRetryable)
 	c.Assert(failpoint.Disable(fpName), IsNil)
 
 	tk.MustExec("insert into t values ()")

go.sum

@@ -344,6 +344,12 @@ github.com/syndtr/goleveldb v0.0.0-20180815032940-ae2bd5eed72d h1:4J9HCZVpvDmj2t
 github.com/syndtr/goleveldb v0.0.0-20180815032940-ae2bd5eed72d/go.mod h1:Z4AUp2Km+PwemOoO/VB5AOx9XSsIItzFjoJlOSiYmn0=
 github.com/tiancaiamao/appdash v0.0.0-20181126055449-889f96f722a2 h1:mbAskLJ0oJfDRtkanvQPiooDH8HvJ2FBh+iKT/OmiQQ=
 github.com/tiancaiamao/appdash v0.0.0-20181126055449-889f96f722a2/go.mod h1:2PfKggNGDuadAa0LElHrByyrz4JPZ9fFx6Gs7nx7ZZU=
+github.com/tiancaiamao/parser v0.0.0-20200311024545-ff0568b33c35 h1:YXdyzP76zzpthmrHX+Ly8YB6pvn55leSvWEWYbimVik=
+github.com/tiancaiamao/parser v0.0.0-20200311024545-ff0568b33c35/go.mod h1:9v0Edh8IbgjGYW2ArJr19E+bvL8zKahsFp+ixWeId+4=
+github.com/tiancaiamao/parser v0.0.0-20200311025843-81dd2ffe3349 h1:UJlvOybNbqWgHY+BotmRXi4ilzBRH6GfPlKZpP3EDKc=
+github.com/tiancaiamao/parser v0.0.0-20200311025843-81dd2ffe3349/go.mod h1:9v0Edh8IbgjGYW2ArJr19E+bvL8zKahsFp+ixWeId+4=
+github.com/tiancaiamao/parser v0.0.0-20200311030529-dfb7d5052a8b h1:F4OXYBudCSmF/KN83UBUdRuzOqrI2ts0AVQtvMbHS34=
+github.com/tiancaiamao/parser v0.0.0-20200311030529-dfb7d5052a8b/go.mod h1:9v0Edh8IbgjGYW2ArJr19E+bvL8zKahsFp+ixWeId+4=
 github.com/tidwall/gjson v1.3.5/go.mod h1:P256ACg0Mn+j1RXIDXoss50DeIABTYK1PULOJHhxOls=
 github.com/tidwall/match v1.0.1/go.mod h1:LujAq0jyVjBy028G1WhWfIzbpQfMO8bBZ6Tyb0+pL9E=
 github.com/tidwall/pretty v1.0.0/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk=

infoschema/error.go

@@ -0,0 +1,70 @@
+// Copyright 2020 PingCAP, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package infoschema
+
+import (
+	"github.com/pingcap/parser/terror"
+	mysql "github.com/pingcap/tidb/errno"
+)
+
+var (
+	// ErrDatabaseExists returns for database already exists.
+	ErrDatabaseExists = terror.ClassSchema.New(mysql.ErrDBCreateExists, mysql.MySQLErrName[mysql.ErrDBCreateExists])
+	// ErrDatabaseDropExists returns for dropping a non-existent database.
+	ErrDatabaseDropExists = terror.ClassSchema.New(mysql.ErrDBDropExists, mysql.MySQLErrName[mysql.ErrDBDropExists])
+	// ErrAccessDenied return when the user doesn't have the permission to access the table.
+	ErrAccessDenied = terror.ClassSchema.New(mysql.ErrAccessDenied, mysql.MySQLErrName[mysql.ErrAccessDenied])
+	// ErrDatabaseNotExists returns for database not exists.
+	ErrDatabaseNotExists = terror.ClassSchema.New(mysql.ErrBadDB, mysql.MySQLErrName[mysql.ErrBadDB])
+	// ErrTableExists returns for table already exists.
+	ErrTableExists = terror.ClassSchema.New(mysql.ErrTableExists, mysql.MySQLErrName[mysql.ErrTableExists])
+	// ErrTableDropExists returns for dropping a non-existent table.
+	ErrTableDropExists = terror.ClassSchema.New(mysql.ErrBadTable, mysql.MySQLErrName[mysql.ErrBadTable])
+	// ErrSequenceDropExists returns for dropping a non-exist sequence.
+	ErrSequenceDropExists = terror.ClassSchema.New(mysql.ErrUnknownSequence, mysql.MySQLErrName[mysql.ErrUnknownSequence])
+	// ErrColumnNotExists returns for column not exists.
+	ErrColumnNotExists = terror.ClassSchema.New(mysql.ErrBadField, mysql.MySQLErrName[mysql.ErrBadField])
+	// ErrColumnExists returns for column already exists.
+	ErrColumnExists = terror.ClassSchema.New(mysql.ErrDupFieldName, mysql.MySQLErrName[mysql.ErrDupFieldName])
+	// ErrKeyNameDuplicate returns for index duplicate when rename index.
+	ErrKeyNameDuplicate = terror.ClassSchema.New(mysql.ErrDupKeyName, mysql.MySQLErrName[mysql.ErrDupKeyName])
+	// ErrNonuniqTable returns when none unique tables errors.
+	ErrNonuniqTable = terror.ClassSchema.New(mysql.ErrNonuniqTable, mysql.MySQLErrName[mysql.ErrNonuniqTable])
+	// ErrMultiplePriKey returns for multiple primary keys.
+	ErrMultiplePriKey = terror.ClassSchema.New(mysql.ErrMultiplePriKey, mysql.MySQLErrName[mysql.ErrMultiplePriKey])
+	// ErrTooManyKeyParts returns for too many key parts.
+	ErrTooManyKeyParts = terror.ClassSchema.New(mysql.ErrTooManyKeyParts, mysql.MySQLErrName[mysql.ErrTooManyKeyParts])
+	// ErrForeignKeyNotExists returns for foreign key not exists.
+	ErrForeignKeyNotExists = terror.ClassSchema.New(mysql.ErrCantDropFieldOrKey, mysql.MySQLErrName[mysql.ErrCantDropFieldOrKey])
+	// ErrTableNotLockedForWrite returns for write tables when only hold the table read lock.
+	ErrTableNotLockedForWrite = terror.ClassSchema.New(mysql.ErrTableNotLockedForWrite, mysql.MySQLErrName[mysql.ErrTableNotLockedForWrite])
+	// ErrTableNotLocked returns when session has explicitly lock tables, then visit unlocked table will return this error.
+	ErrTableNotLocked = terror.ClassSchema.New(mysql.ErrTableNotLocked, mysql.MySQLErrName[mysql.ErrTableNotLocked])
+	// ErrTableNotExists returns for table not exists.
+	ErrTableNotExists = terror.ClassSchema.New(mysql.ErrNoSuchTable, mysql.MySQLErrName[mysql.ErrNoSuchTable])
+	// ErrKeyNotExists returns for index not exists.
+	ErrKeyNotExists = terror.ClassSchema.New(mysql.ErrKeyDoesNotExist, mysql.MySQLErrName[mysql.ErrKeyDoesNotExist])
+	// ErrCannotAddForeign returns for foreign key exists.
+	ErrCannotAddForeign = terror.ClassSchema.New(mysql.ErrCannotAddForeign, mysql.MySQLErrName[mysql.ErrCannotAddForeign])
+	// ErrForeignKeyNotMatch returns for foreign key not match.
+	ErrForeignKeyNotMatch = terror.ClassSchema.New(mysql.ErrWrongFkDef, mysql.MySQLErrName[mysql.ErrWrongFkDef])
+	// ErrIndexExists returns for index already exists.
+	ErrIndexExists = terror.ClassSchema.New(mysql.ErrDupIndex, mysql.MySQLErrName[mysql.ErrDupIndex])
+	// ErrUserDropExists returns for dropping a non-existent user.
+	ErrUserDropExists = terror.ClassSchema.New(mysql.ErrBadUser, mysql.MySQLErrName[mysql.ErrBadUser])
+	// ErrUserAlreadyExists return for creating a existent user.
+	ErrUserAlreadyExists = terror.ClassSchema.New(mysql.ErrUserAlreadyExists, mysql.MySQLErrName[mysql.ErrUserAlreadyExists])
+	// ErrTableLocked returns when the table was locked by other session.
+	ErrTableLocked = terror.ClassSchema.New(mysql.ErrTableLocked, mysql.MySQLErrName[mysql.ErrTableLocked])
+)

infoschema/infoschema.go

@@ -20,7 +20,6 @@ import (
 
 	"github.com/pingcap/parser/model"
 	"github.com/pingcap/parser/mysql"
-	"github.com/pingcap/parser/terror"
 	"github.com/pingcap/tidb/kv"
 	"github.com/pingcap/tidb/meta/autoid"
 	"github.com/pingcap/tidb/sessionctx"
@@ -30,57 +29,6 @@ import (
 	"go.uber.org/zap"
 )
 
-var (
-	// ErrDatabaseExists returns for database already exists.
-	ErrDatabaseExists = terror.ClassSchema.New(mysql.ErrDBCreateExists, mysql.MySQLErrName[mysql.ErrDBCreateExists])
-	// ErrDatabaseDropExists returns for dropping a non-existent database.
-	ErrDatabaseDropExists = terror.ClassSchema.New(mysql.ErrDBDropExists, mysql.MySQLErrName[mysql.ErrDBDropExists])
-	// ErrAccessDenied return when the user doesn't have the permission to access the table.
-	ErrAccessDenied = terror.ClassSchema.New(mysql.ErrAccessDenied, mysql.MySQLErrName[mysql.ErrAccessDenied])
-	// ErrDatabaseNotExists returns for database not exists.
-	ErrDatabaseNotExists = terror.ClassSchema.New(mysql.ErrBadDB, mysql.MySQLErrName[mysql.ErrBadDB])
-	// ErrTableExists returns for table already exists.
-	ErrTableExists = terror.ClassSchema.New(mysql.ErrTableExists, mysql.MySQLErrName[mysql.ErrTableExists])
-	// ErrTableDropExists returns for dropping a non-existent table.
-	ErrTableDropExists = terror.ClassSchema.New(mysql.ErrBadTable, mysql.MySQLErrName[mysql.ErrBadTable])
-	// ErrSequenceDropExists returns for dropping a non-exist sequence.
-	ErrSequenceDropExists = terror.ClassSchema.New(mysql.ErrUnknownSequence, mysql.MySQLErrName[mysql.ErrUnknownSequence])
-	// ErrColumnNotExists returns for column not exists.
-	ErrColumnNotExists = terror.ClassSchema.New(mysql.ErrBadField, mysql.MySQLErrName[mysql.ErrBadField])
-	// ErrColumnExists returns for column already exists.
-	ErrColumnExists = terror.ClassSchema.New(mysql.ErrDupFieldName, mysql.MySQLErrName[mysql.ErrDupFieldName])
-	// ErrKeyNameDuplicate returns for index duplicate when rename index.
-	ErrKeyNameDuplicate = terror.ClassSchema.New(mysql.ErrDupKeyName, mysql.MySQLErrName[mysql.ErrDupKeyName])
-	// ErrNonuniqTable returns when none unique tables errors.
-	ErrNonuniqTable = terror.ClassSchema.New(mysql.ErrNonuniqTable, mysql.MySQLErrName[mysql.ErrNonuniqTable])
-	// ErrMultiplePriKey returns for multiple primary keys.
-	ErrMultiplePriKey = terror.ClassSchema.New(mysql.ErrMultiplePriKey, mysql.MySQLErrName[mysql.ErrMultiplePriKey])
-	// ErrTooManyKeyParts returns for too many key parts.
-	ErrTooManyKeyParts = terror.ClassSchema.New(mysql.ErrTooManyKeyParts, mysql.MySQLErrName[mysql.ErrTooManyKeyParts])
-	// ErrForeignKeyNotExists returns for foreign key not exists.
-	ErrForeignKeyNotExists = terror.ClassSchema.New(mysql.ErrCantDropFieldOrKey, mysql.MySQLErrName[mysql.ErrCantDropFieldOrKey])
-	// ErrTableNotLockedForWrite returns for write tables when only hold the table read lock.
-	ErrTableNotLockedForWrite = terror.ClassSchema.New(mysql.ErrTableNotLockedForWrite, mysql.MySQLErrName[mysql.ErrTableNotLockedForWrite])
-	// ErrTableNotLocked returns when session has explicitly lock tables, then visit unlocked table will return this error.
-	ErrTableNotLocked = terror.ClassSchema.New(mysql.ErrTableNotLocked, mysql.MySQLErrName[mysql.ErrTableNotLocked])
-	// ErrTableNotExists returns for table not exists.
-	ErrTableNotExists = terror.ClassSchema.New(mysql.ErrNoSuchTable, mysql.MySQLErrName[mysql.ErrNoSuchTable])
-	// ErrKeyNotExists returns for index not exists.
-	ErrKeyNotExists = terror.ClassSchema.New(mysql.ErrKeyDoesNotExist, mysql.MySQLErrName[mysql.ErrKeyDoesNotExist])
-	// ErrCannotAddForeign returns for foreign key exists.
-	ErrCannotAddForeign = terror.ClassSchema.New(mysql.ErrCannotAddForeign, mysql.MySQLErrName[mysql.ErrCannotAddForeign])
-	// ErrForeignKeyNotMatch returns for foreign key not match.
-	ErrForeignKeyNotMatch = terror.ClassSchema.New(mysql.ErrWrongFkDef, mysql.MySQLErrName[mysql.ErrWrongFkDef])
-	// ErrIndexExists returns for index already exists.
-	ErrIndexExists = terror.ClassSchema.New(mysql.ErrDupIndex, mysql.MySQLErrName[mysql.ErrDupIndex])
-	// ErrUserDropExists returns for dropping a non-existent user.
-	ErrUserDropExists = terror.ClassSchema.New(mysql.ErrBadUser, mysql.MySQLErrName[mysql.ErrBadUser])
-	// ErrUserAlreadyExists return for creating a existent user.
-	ErrUserAlreadyExists = terror.ClassSchema.New(mysql.ErrUserAlreadyExists, mysql.MySQLErrName[mysql.ErrUserAlreadyExists])
-	// ErrTableLocked returns when the table was locked by other session.
-	ErrTableLocked = terror.ClassSchema.New(mysql.ErrTableLocked, mysql.MySQLErrName[mysql.ErrTableLocked])
-)
-
 // InfoSchema is the interface used to retrieve the schema information.
 // It works as a in memory cache and doesn't handle any schema change.
 // InfoSchema is read-only, and the returned value is a copy.

kv/error.go

@@ -14,8 +14,8 @@
 package kv
 
 import (
-	"github.com/pingcap/parser/mysql"
 	"github.com/pingcap/parser/terror"
+	mysql "github.com/pingcap/tidb/errno"
 )
 
 // TxnRetryableMark is used to uniform the commit error messages which could retry the transaction.

meta/autoid/errors.go

@@ -14,8 +14,8 @@
 package autoid
 
 import (
-	"github.com/pingcap/parser/mysql"
 	"github.com/pingcap/parser/terror"
+	mysql "github.com/pingcap/tidb/errno"
 )
 
 // Error instances.

planner/core/errors.go

@@ -14,8 +14,8 @@
 package core
 
 import (
-	"github.com/pingcap/parser/mysql"
 	"github.com/pingcap/parser/terror"
+	mysql "github.com/pingcap/tidb/errno"
 )
 
 // error definitions.

plugin/errors.go

@@ -14,16 +14,16 @@
 package plugin
 
 import (
-	"github.com/pingcap/parser/mysql"
 	"github.com/pingcap/parser/terror"
+	"github.com/pingcap/tidb/errno"
 )
 
 var (
-	errInvalidPluginID         = terror.ClassPlugin.NewStd(mysql.ErrInvalidPluginID)
-	errInvalidPluginManifest   = terror.ClassPlugin.NewStd(mysql.ErrInvalidPluginManifest)
-	errInvalidPluginName       = terror.ClassPlugin.NewStd(mysql.ErrInvalidPluginName)
-	errInvalidPluginVersion    = terror.ClassPlugin.NewStd(mysql.ErrInvalidPluginVersion)
-	errDuplicatePlugin         = terror.ClassPlugin.NewStd(mysql.ErrDuplicatePlugin)
-	errInvalidPluginSysVarName = terror.ClassPlugin.NewStd(mysql.ErrInvalidPluginSysVarName)
-	errRequireVersionCheckFail = terror.ClassPlugin.NewStd(mysql.ErrRequireVersionCheckFail)
+	errInvalidPluginID         = terror.ClassPlugin.NewStd(errno.ErrInvalidPluginID)
+	errInvalidPluginManifest   = terror.ClassPlugin.NewStd(errno.ErrInvalidPluginManifest)
+	errInvalidPluginName       = terror.ClassPlugin.NewStd(errno.ErrInvalidPluginName)
+	errInvalidPluginVersion    = terror.ClassPlugin.NewStd(errno.ErrInvalidPluginVersion)
+	errDuplicatePlugin         = terror.ClassPlugin.NewStd(errno.ErrDuplicatePlugin)
+	errInvalidPluginSysVarName = terror.ClassPlugin.NewStd(errno.ErrInvalidPluginSysVarName)
+	errRequireVersionCheckFail = terror.ClassPlugin.NewStd(errno.ErrRequireVersionCheckFail)
 )

privilege/privileges/errors.go

@@ -14,8 +14,8 @@
 package privileges
 
 import (
-	"github.com/pingcap/parser/mysql"
 	"github.com/pingcap/parser/terror"
+	mysql "github.com/pingcap/tidb/errno"
 )
 
 // error definitions.

server/server.go

@@ -52,6 +52,7 @@ import (
 	"github.com/pingcap/parser/terror"
 	"github.com/pingcap/tidb/config"
 	"github.com/pingcap/tidb/domain"
+	"github.com/pingcap/tidb/errno"
 	"github.com/pingcap/tidb/metrics"
 	"github.com/pingcap/tidb/plugin"
 	"github.com/pingcap/tidb/sessionctx/variable"
@@ -86,12 +87,12 @@ func init() {
 }
 
 var (
-	errUnknownFieldType  = terror.ClassServer.New(mysql.ErrUnknownFieldType, mysql.MySQLErrName[mysql.ErrUnknownFieldType])
-	errInvalidSequence   = terror.ClassServer.New(mysql.ErrInvalidSequence, mysql.MySQLErrName[mysql.ErrInvalidSequence])
-	errInvalidType       = terror.ClassServer.New(mysql.ErrInvalidType, mysql.MySQLErrName[mysql.ErrInvalidType])
-	errNotAllowedCommand = terror.ClassServer.New(mysql.ErrNotAllowedCommand, mysql.MySQLErrName[mysql.ErrNotAllowedCommand])
-	errAccessDenied      = terror.ClassServer.New(mysql.ErrAccessDenied, mysql.MySQLErrName[mysql.ErrAccessDenied])
-	errConCount          = terror.ClassServer.New(mysql.ErrConCount, mysql.MySQLErrName[mysql.ErrConCount])
+	errUnknownFieldType  = terror.ClassServer.New(errno.ErrUnknownFieldType, errno.MySQLErrName[errno.ErrUnknownFieldType])
+	errInvalidSequence   = terror.ClassServer.New(errno.ErrInvalidSequence, errno.MySQLErrName[errno.ErrInvalidSequence])
+	errInvalidType       = terror.ClassServer.New(errno.ErrInvalidType, errno.MySQLErrName[errno.ErrInvalidType])
+	errNotAllowedCommand = terror.ClassServer.New(errno.ErrNotAllowedCommand, errno.MySQLErrName[errno.ErrNotAllowedCommand])
+	errAccessDenied      = terror.ClassServer.New(errno.ErrAccessDenied, errno.MySQLErrName[errno.ErrAccessDenied])
+	errConCount          = terror.ClassServer.New(errno.ErrConCount, errno.MySQLErrName[errno.ErrConCount])
 )
 
 // DefaultCapability is the capability of the server when it is created using the default configuration.