chore: import upstream snapshot with attribution

server/ast/delete.go

@@ -0,0 +1,69 @@
+// Copyright 2023 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 ast
+
+import (
+	vitess "github.com/dolthub/vitess/go/vt/sqlparser"
+
+	"github.com/dolthub/doltgresql/postgres/parser/sem/tree"
+	"github.com/dolthub/doltgresql/server/auth"
+)
+
+// nodeDelete handles *tree.Delete nodes.
+func nodeDelete(ctx *Context, node *tree.Delete) (*vitess.Delete, error) {
+	if node == nil {
+		return nil, nil
+	}
+	ctx.Auth().PushAuthType(auth.AuthType_DELETE)
+	defer ctx.Auth().PopAuthType()
+
+	var returningExprs vitess.SelectExprs
+	if returning, ok := node.Returning.(*tree.ReturningExprs); ok {
+		var err error
+		returningExprs, err = nodeSelectExprs(ctx, tree.SelectExprs(*returning))
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	with, err := nodeWith(ctx, node.With)
+	if err != nil {
+		return nil, err
+	}
+	table, err := nodeTableExpr(ctx, node.Table)
+	if err != nil {
+		return nil, err
+	}
+	where, err := nodeWhere(ctx, node.Where)
+	if err != nil {
+		return nil, err
+	}
+	orderBy, err := nodeOrderBy(ctx, node.OrderBy)
+	if err != nil {
+		return nil, err
+	}
+	limit, err := nodeLimit(ctx, node.Limit)
+	if err != nil {
+		return nil, err
+	}
+	return &vitess.Delete{
+		TableExprs: vitess.TableExprs{table},
+		With:       with,
+		Where:      where,
+		OrderBy:    orderBy,
+		Limit:      limit,
+		Returning:  returningExprs,
+	}, nil
+}