Files
dolthub--doltgresql/server/node/drop_extension.go
T
2026-07-13 12:32:25 +08:00

88 lines
2.5 KiB
Go

// Copyright 2025 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 node
import (
"context"
"github.com/cockroachdb/errors"
"github.com/dolthub/go-mysql-server/sql"
"github.com/dolthub/go-mysql-server/sql/plan"
vitess "github.com/dolthub/vitess/go/vt/sqlparser"
)
// DropExtension implements DROP EXTENSION.
type DropExtension struct {
Names []string
IfExists bool
Cascade bool
}
var _ sql.ExecSourceRel = (*DropExtension)(nil)
var _ vitess.Injectable = (*DropExtension)(nil)
// NewDropExtension returns a new *DropExtension.
func NewDropExtension(names []string, ifExists bool, cascade bool) *DropExtension {
return &DropExtension{
Names: names,
IfExists: ifExists,
Cascade: cascade,
}
}
// Children implements the interface sql.ExecSourceRel.
func (c *DropExtension) Children() []sql.Node {
return nil
}
// IsReadOnly implements the interface sql.ExecSourceRel.
func (c *DropExtension) IsReadOnly() bool {
return false
}
// Resolved implements the interface sql.ExecSourceRel.
func (c *DropExtension) Resolved() bool {
return true
}
// RowIter implements the interface sql.ExecSourceRel.
func (c *DropExtension) RowIter(ctx *sql.Context, r sql.Row) (sql.RowIter, error) {
// TODO: implement this
return nil, errors.Errorf("DROP EXTENSION is not yet implemented")
}
// Schema implements the interface sql.ExecSourceRel.
func (c *DropExtension) Schema(ctx *sql.Context) sql.Schema {
return nil
}
// String implements the interface sql.ExecSourceRel.
func (c *DropExtension) String() string {
return "DROP EXTENSION"
}
// WithChildren implements the interface sql.ExecSourceRel.
func (c *DropExtension) WithChildren(ctx *sql.Context, children ...sql.Node) (sql.Node, error) {
return plan.NillaryWithChildren(c, children...)
}
// WithResolvedChildren implements the interface vitess.Injectable.
func (c *DropExtension) WithResolvedChildren(ctx context.Context, children []any) (any, error) {
if len(children) != 0 {
return nil, ErrVitessChildCount.New(0, len(children))
}
return c, nil
}