chore: import upstream snapshot with attribution

server/node/create_table.go

@@ -0,0 +1,148 @@
+// Copyright 2024 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 node
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/dolthub/go-mysql-server/sql"
+	"github.com/dolthub/go-mysql-server/sql/plan"
+
+	"github.com/dolthub/doltgresql/core"
+)
+
+// CreateTable is a node that implements functionality specifically relevant to Doltgres' table creation needs.
+type CreateTable struct {
+	gmsCreateTable *plan.CreateTable
+	sequences      []*CreateSequence
+}
+
+var _ sql.ExecBuilderNode = (*CreateTable)(nil)
+var _ sql.SchemaTarget = (*CreateTable)(nil)
+var _ sql.Expressioner = (*CreateTable)(nil)
+
+// NewCreateTable returns a new *CreateTable.
+func NewCreateTable(createTable *plan.CreateTable, sequences []*CreateSequence) *CreateTable {
+	return &CreateTable{
+		gmsCreateTable: createTable,
+		sequences:      sequences,
+	}
+}
+
+// Children implements the interface sql.ExecBuilderNode.
+func (c *CreateTable) Children() []sql.Node {
+	return c.gmsCreateTable.Children()
+}
+
+// DebugString implements the sql.DebugStringer interface
+func (c *CreateTable) DebugString(ctx *sql.Context) string {
+	return sql.DebugString(ctx, c.gmsCreateTable)
+}
+
+// Expressions implements the sql.Expressioner interface.
+func (c *CreateTable) Expressions() []sql.Expression {
+	return c.gmsCreateTable.Expressions()
+}
+
+// IsReadOnly implements the interface sql.ExecBuilderNode.
+func (c *CreateTable) IsReadOnly() bool {
+	return false
+}
+
+// Resolved implements the interface sql.ExecBuilderNode.
+func (c *CreateTable) Resolved() bool {
+	return c.gmsCreateTable != nil && c.gmsCreateTable.Resolved()
+}
+
+// BuildRowIter implements the interface sql.ExecBuilderNode.
+func (c *CreateTable) BuildRowIter(ctx *sql.Context, b sql.NodeExecBuilder, r sql.Row) (sql.RowIter, error) {
+	// Prevent tables from having names like `guid()`, which resembles a function
+	leftParen := strings.IndexByte(c.gmsCreateTable.Name(), '(')
+	rightParen := strings.IndexByte(c.gmsCreateTable.Name(), ')')
+	if leftParen != -1 && rightParen != -1 && rightParen > leftParen {
+		return nil, fmt.Errorf("table name `%s` cannot contain a parenthesized portion", c.gmsCreateTable.Name())
+	}
+
+	createTableIter, err := b.Build(ctx, c.gmsCreateTable, r)
+	if err != nil {
+		return nil, err
+	}
+
+	schemaName, err := core.GetSchemaName(ctx, c.gmsCreateTable.Db, "")
+	if err != nil {
+		return nil, err
+	}
+	for _, sequence := range c.sequences {
+		sequence.schema = schemaName
+		_, err = sequence.RowIter(ctx, r)
+		if err != nil {
+			_ = createTableIter.Close(ctx)
+			return nil, err
+		}
+	}
+	return createTableIter, err
+}
+
+// Schema implements the interface sql.ExecBuilderNode.
+func (c *CreateTable) Schema(ctx *sql.Context) sql.Schema {
+	return c.gmsCreateTable.Schema(ctx)
+}
+
+// String implements the interface sql.ExecBuilderNode.
+func (c *CreateTable) String() string {
+	return c.gmsCreateTable.String()
+}
+
+// TargetSchema implements the interface sql.SchemaTarget.
+func (c *CreateTable) TargetSchema() sql.Schema {
+	return c.gmsCreateTable.TargetSchema()
+}
+
+// WithChildren implements the interface sql.ExecBuilderNode.
+func (c *CreateTable) WithChildren(ctx *sql.Context, children ...sql.Node) (sql.Node, error) {
+	gmsCreateTable, err := c.gmsCreateTable.WithChildren(ctx, children...)
+	if err != nil {
+		return nil, err
+	}
+	return &CreateTable{
+		gmsCreateTable: gmsCreateTable.(*plan.CreateTable),
+		sequences:      c.sequences,
+	}, nil
+}
+
+// WithExpressions implements the interface sql.Expressioner.
+func (c *CreateTable) WithExpressions(ctx *sql.Context, expression ...sql.Expression) (sql.Node, error) {
+	nc := *c
+	n, err := nc.gmsCreateTable.WithExpressions(ctx, expression...)
+	if err != nil {
+		return nil, err
+	}
+
+	nc.gmsCreateTable = n.(*plan.CreateTable)
+	return &nc, nil
+}
+
+// WithTargetSchema implements the interface sql.SchemaTarget.
+func (c CreateTable) WithTargetSchema(schema sql.Schema) (sql.Node, error) {
+	n, err := c.gmsCreateTable.WithTargetSchema(schema)
+	if err != nil {
+		return nil, err
+	}
+
+	c.gmsCreateTable = n.(*plan.CreateTable)
+
+	return &c, nil
+}