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