/
sysdb.go
125 lines (105 loc) · 3.57 KB
/
sysdb.go
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// Copyright 2022 Matrix Origin
//
// 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package txnimpl
import (
pkgcatalog "github.com/matrixorigin/matrixone/pkg/catalog"
"github.com/matrixorigin/matrixone/pkg/common/moerr"
"github.com/matrixorigin/matrixone/pkg/util/metric"
"github.com/matrixorigin/matrixone/pkg/util/trace/impl/motrace"
"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/iface/handle"
)
var sysTableNames map[string]bool
var sysTableIds map[uint64]bool
// any tenant is able to see these db, but access them is required to be upgraded as Sys tenant in a tricky way.
// this can be done in frontend
var sysSharedDBNames map[string]bool
func init() {
sysTableNames = make(map[string]bool)
sysTableNames[pkgcatalog.MO_COLUMNS] = true
sysTableNames[pkgcatalog.MO_TABLES] = true
sysTableNames[pkgcatalog.MO_DATABASE] = true
sysTableIds = make(map[uint64]bool)
sysTableIds[pkgcatalog.MO_TABLES_ID] = true
sysTableIds[pkgcatalog.MO_DATABASE_ID] = true
sysTableIds[pkgcatalog.MO_COLUMNS_ID] = true
sysSharedDBNames = make(map[string]bool)
sysSharedDBNames[pkgcatalog.MO_CATALOG] = true
sysSharedDBNames[metric.MetricDBConst] = true
sysSharedDBNames[motrace.SystemDBConst] = true
}
func isSysTable(name string) bool {
return sysTableNames[name]
}
func isSysTableId(id uint64) bool {
return sysTableIds[id]
}
func isSysSharedDB(name string) bool {
return sysSharedDBNames[name]
}
func buildDB(db *txnDB) handle.Database {
if db.entry.IsSystemDB() {
return newSysDB(db)
}
return newDatabase(db)
}
type txnSysDB struct {
*txnDatabase
}
func newSysDB(db *txnDB) *txnSysDB {
sysDB := &txnSysDB{
txnDatabase: newDatabase(db),
}
return sysDB
}
func (db *txnSysDB) DropRelationByName(name string) (rel handle.Relation, err error) {
if isSysTable(name) {
err = moerr.NewInternalErrorNoCtx("drop relation %s is not permitted", name)
return
}
return db.txnDatabase.DropRelationByName(name)
}
func (db *txnSysDB) DropRelationByID(id uint64) (rel handle.Relation, err error) {
if isSysTableId(id) {
err = moerr.NewInternalErrorNoCtx("drop relation %d is not permitted", id)
return
}
return db.txnDatabase.DropRelationByID(id)
}
func (db *txnSysDB) TruncateByName(name string) (rel handle.Relation, err error) {
if isSysTable(name) {
err = moerr.NewInternalErrorNoCtx("truncate relation %s is not permitted", name)
return
}
return db.txnDatabase.TruncateByName(name)
}
func (db *txnSysDB) TruncateWithID(name string, newTableId uint64) (rel handle.Relation, err error) {
if isSysTable(name) {
err = moerr.NewInternalErrorNoCtx("truncate relation %s is not permitted", name)
return
}
return db.txnDatabase.TruncateWithID(name, newTableId)
}
func (db *txnSysDB) TruncateByID(id uint64, newTableId uint64) (rel handle.Relation, err error) {
if isSysTableId(id) {
err = moerr.NewInternalErrorNoCtx("truncate relation %d is not permitted", id)
return
}
return db.txnDatabase.TruncateByID(id, newTableId)
}
func (db *txnSysDB) IsSubscription() bool {
return db.txnDatabase.IsSubscription()
}
func (db *txnSysDB) GetCreateSql() string {
return db.txnDatabase.GetCreateSql()
}