/
open.go
86 lines (70 loc) · 2.25 KB
/
open.go
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// Copyright 2022 Dolthub, 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,
// 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 plan
import (
"fmt"
"github.com/dolthub/go-mysql-server/sql/expression"
"github.com/dolthub/go-mysql-server/sql"
)
// Open represents the OPEN statement, which opens a cursor.
type Open struct {
Name string
Pref *expression.ProcedureReference
}
var _ sql.Node = (*Open)(nil)
var _ sql.CollationCoercible = (*Open)(nil)
var _ expression.ProcedureReferencable = (*Open)(nil)
// NewOpen returns a new *Open node.
func NewOpen(name string) *Open {
return &Open{
Name: name,
}
}
// Resolved implements the interface sql.Node.
func (o *Open) Resolved() bool {
return true
}
func (o *Open) IsReadOnly() bool {
return true
}
// String implements the interface sql.Node.
func (o *Open) String() string {
return fmt.Sprintf("OPEN %s", o.Name)
}
// Schema implements the interface sql.Node.
func (o *Open) Schema() sql.Schema {
return nil
}
// Children implements the interface sql.Node.
func (o *Open) Children() []sql.Node {
return nil
}
// WithChildren implements the interface sql.Node.
func (o *Open) WithChildren(children ...sql.Node) (sql.Node, error) {
return NillaryWithChildren(o, children...)
}
// CheckPrivileges implements the interface sql.Node.
func (o *Open) CheckPrivileges(ctx *sql.Context, opChecker sql.PrivilegedOperationChecker) bool {
return true
}
// CollationCoercibility implements the interface sql.CollationCoercible.
func (*Open) CollationCoercibility(ctx *sql.Context) (collation sql.CollationID, coercibility byte) {
return sql.Collation_binary, 7
}
// WithParamReference implements the interface expression.ProcedureReferencable.
func (o *Open) WithParamReference(pRef *expression.ProcedureReference) sql.Node {
no := *o
no.Pref = pRef
return &no
}