wehub-resource-sync
55 lines
1.6 KiB
Go
55 lines
1.6 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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vitess "github.com/dolthub/vitess/go/vt/sqlparser"
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"github.com/dolthub/doltgresql/server/auth"
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"github.com/dolthub/doltgresql/postgres/parser/sem/tree"
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)
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// nodeDropSchema handles *tree.DropSchema nodes.
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func nodeDropSchema(ctx *Context, node *tree.DropSchema) (vitess.Statement, error) {
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// TODO: disallow dropping pg_catalog for now
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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 NotYetSupportedError("DROP SCHEMA with multiple schema names is not yet supported.")
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}
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if node.DropBehavior == tree.DropCascade {
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return NotYetSupportedError("DROP SCHEMA with CASCADE behavior is not yet supported.")
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}
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schemaName := node.Names[0]
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return &vitess.DBDDL{
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Action: vitess.DropStr,
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SchemaOrDatabase: "schema",
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DBName: schemaName,
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CharsetCollate: nil,
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IfExists: node.IfExists,
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Auth: vitess.AuthInformation{
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AuthType: auth.AuthType_DELETE,
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TargetType: auth.AuthTargetType_SchemaIdentifiers,
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TargetNames: []string{"", schemaName},
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},
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}, nil
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}
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