wehub-resource-sync
56 lines
1.8 KiB
Go
56 lines
1.8 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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"github.com/dolthub/doltgresql/server/auth"
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)
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// nodeTruncate handles *tree.Truncate nodes.
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func nodeTruncate(ctx *Context, node *tree.Truncate) (*vitess.DDL, error) {
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if node == nil || len(node.Tables) == 0 {
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return nil, nil
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}
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switch node.DropBehavior {
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case tree.DropDefault:
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// Default behavior, nothing to do
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case tree.DropRestrict:
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return nil, errors.Errorf("RESTRICT is not yet supported")
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case tree.DropCascade:
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return nil, errors.Errorf("CASCADE is not yet supported")
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}
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if len(node.Tables) > 1 {
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return nil, errors.Errorf("truncating multiple tables at once is not yet supported")
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}
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tableName, err := nodeTableName(ctx, &node.Tables[0])
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if err != nil {
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return nil, err
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}
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return &vitess.DDL{
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Action: vitess.TruncateStr,
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Table: tableName,
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Auth: vitess.AuthInformation{
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AuthType: auth.AuthType_TRUNCATE,
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TargetType: auth.AuthTargetType_TableIdentifiers,
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TargetNames: []string{tableName.DbQualifier.String(), tableName.SchemaQualifier.String(), tableName.Name.String()},
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},
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}, nil
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}
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