wehub-resource-sync
47 lines
1.5 KiB
Go
47 lines
1.5 KiB
Go
// Copyright 2023 Dolthub, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package ast
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import (
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"github.com/cockroachdb/errors"
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vitess "github.com/dolthub/vitess/go/vt/sqlparser"
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"github.com/dolthub/doltgresql/postgres/parser/sem/tree"
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pgnodes "github.com/dolthub/doltgresql/server/node"
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)
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// nodeDropSequence handles *tree.DropSequence nodes.
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func nodeDropSequence(ctx *Context, node *tree.DropSequence) (vitess.Statement, error) {
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if node == nil {
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return nil, nil
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}
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if len(node.Names) != 1 {
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return nil, errors.Errorf("dropping multiple sequences in DROP SEQUENCE is not yet supported")
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}
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name, err := nodeTableName(ctx, &node.Names[0])
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if err != nil {
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return nil, err
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}
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if len(name.DbQualifier.String()) > 0 {
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return nil, errors.Errorf("DROP SEQUENCE is currently only supported for the current database")
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}
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return vitess.InjectedStatement{
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Statement: pgnodes.NewDropSequence(node.IfExists, name.SchemaQualifier.String(), name.Name.String(),
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node.DropBehavior == tree.DropCascade),
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Children: nil,
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}, nil
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}
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