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show_database_rule.go
42 lines (37 loc) · 1.35 KB
/
show_database_rule.go
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 dal
import (
"context"
)
import (
"github.com/arana-db/arana/pkg/proto"
"github.com/arana-db/arana/pkg/runtime/ast"
"github.com/arana-db/arana/pkg/runtime/optimize"
"github.com/arana-db/arana/pkg/runtime/plan/dal"
)
func init() {
optimize.Register(ast.SQLTypeShowDatabaseRules, optimizeShowDatabaseRules)
}
func optimizeShowDatabaseRules(_ context.Context, o *optimize.Optimizer) (proto.Plan, error) {
rule := o.Rule
stmt := o.Stmt.(*ast.ShowDatabaseRule)
ret := dal.NewShowDatabaseRulesPlan(stmt)
ret.BindArgs(o.Args)
ret.SetRule(rule)
return ret, nil
}