wehub-resource-sync
126 lines
3.6 KiB
Go
126 lines
3.6 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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"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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// nodeCreateTable handles *tree.CreateTable nodes.
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func nodeCreateTable(ctx *Context, node *tree.CreateTable) (*vitess.DDL, 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.StorageParams) > 0 {
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return nil, errors.Errorf("storage parameters are not yet supported")
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}
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// TODO: support tree.CreateTableOnCommitDrop and tree.CreateTableOnCommitDeleteRows
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switch node.OnCommit {
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case tree.CreateTableOnCommitDrop:
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// is unsupported and ignored
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case tree.CreateTableOnCommitDeleteRows:
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// is unsupported and ignored
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}
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tableName, err := nodeTableName(ctx, &node.Table)
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if err != nil {
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return nil, err
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}
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var isTemporary bool
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switch node.Persistence {
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case tree.PersistencePermanent:
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isTemporary = false
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case tree.PersistenceTemporary:
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isTemporary = true
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case tree.PersistenceUnlogged:
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return nil, errors.Errorf("UNLOGGED is not yet supported")
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default:
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return nil, errors.Errorf("unknown persistence strategy encountered")
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}
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var optSelect *vitess.OptSelect
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if node.Using != "" {
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return nil, errors.Errorf("USING is not yet supported")
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}
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if node.Tablespace != "" {
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return nil, errors.Errorf("TABLESPACE is not yet supported")
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}
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if node.AsSource != nil {
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selectStmt, err := nodeSelect(ctx, node.AsSource)
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if err != nil {
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return nil, err
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}
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optSelect = &vitess.OptSelect{
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Select: selectStmt,
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}
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}
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var optLike *vitess.OptLike
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if len(node.Inherits) > 0 {
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optLike = &vitess.OptLike{
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LikeTables: []vitess.TableName{},
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}
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for _, table := range node.Inherits {
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likeTable, err := nodeTableName(ctx, &table)
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if err != nil {
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return nil, err
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}
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optLike.LikeTables = append(optLike.LikeTables, likeTable)
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}
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}
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if node.WithNoData {
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return nil, errors.Errorf("WITH NO DATA is not yet supported")
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}
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ddl := &vitess.DDL{
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Action: vitess.CreateStr,
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Table: tableName,
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IfNotExists: node.IfNotExists,
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Temporary: isTemporary,
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OptSelect: optSelect,
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OptLike: optLike,
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Auth: vitess.AuthInformation{
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AuthType: auth.AuthType_CREATE,
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TargetType: auth.AuthTargetType_SchemaIdentifiers,
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TargetNames: []string{tableName.DbQualifier.String(), tableName.SchemaQualifier.String()},
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},
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}
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if err = assignTableDefs(ctx, node.Defs, ddl); err != nil {
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return nil, err
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}
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if node.PartitionBy != nil {
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switch node.PartitionBy.Type {
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case tree.PartitionByList:
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if len(node.PartitionBy.Elems) != 1 {
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return nil, errors.Errorf("PARTITION BY LIST must have a single column or expression")
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}
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}
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// GMS does not support PARTITION BY, so we parse it and ignore it
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if ddl.TableSpec != nil {
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ddl.TableSpec.PartitionOpt = &vitess.PartitionOption{
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PartitionType: string(node.PartitionBy.Type),
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Expr: vitess.NewColName(string(node.PartitionBy.Elems[0].Column)),
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}
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}
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}
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if node.PartitionOf.Table() != "" {
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return nil, errors.Errorf("PARTITION OF is not yet supported")
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}
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return ddl, nil
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}
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