mirror of
https://github.com/featurebasedb/featurebase.git
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fb40cdc2cb
enriched metadata for tables added support for the concept of a table and field owners in metadata; mechanism to derive owner from http request metadata; metadata for table description
123 lines
3.1 KiB
Go
123 lines
3.1 KiB
Go
// Copyright 2021 Molecula Corp. All rights reserved.
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package planner
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import (
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"context"
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"fmt"
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pilosa "github.com/molecula/featurebase/v3"
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"github.com/molecula/featurebase/v3/sql3/planner/types"
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"github.com/pkg/errors"
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)
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// PlanOpCreateTable plan operator that creates a table.
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type PlanOpCreateTable struct {
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planner *ExecutionPlanner
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tableName string
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failIfExists bool
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isKeyed bool
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keyPartitions int
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columns []*createTableField
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warnings []string
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}
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func NewPlanOpCreateTable(p *ExecutionPlanner, tableName string, failIfExists bool, isKeyed bool, keyPartitions int, columns []*createTableField) *PlanOpCreateTable {
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return &PlanOpCreateTable{
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planner: p,
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tableName: tableName,
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failIfExists: failIfExists,
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isKeyed: isKeyed,
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keyPartitions: keyPartitions,
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columns: columns,
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warnings: make([]string, 0),
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}
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}
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func (p *PlanOpCreateTable) Plan() map[string]interface{} {
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result := make(map[string]interface{})
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result["_op"] = fmt.Sprintf("%T", p)
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ps := make([]string, 0)
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for _, e := range p.Schema() {
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ps = append(ps, fmt.Sprintf("'%s', '%s', '%s'", e.ColumnName, e.RelationName, e.Type.TypeName()))
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}
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result["_schema"] = ps
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result["name"] = p.tableName
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result["failIfExists"] = p.failIfExists
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return result
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}
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func (p *PlanOpCreateTable) String() string {
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return ""
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}
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func (p *PlanOpCreateTable) AddWarning(warning string) {
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p.warnings = append(p.warnings, warning)
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}
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func (p *PlanOpCreateTable) Warnings() []string {
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return p.warnings
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}
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func (p *PlanOpCreateTable) Schema() types.Schema {
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return types.Schema{}
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}
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func (p *PlanOpCreateTable) Children() []types.PlanOperator {
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return []types.PlanOperator{}
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}
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func (p *PlanOpCreateTable) Iterator(ctx context.Context, row types.Row) (types.RowIterator, error) {
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return &createTableRowIter{
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planner: p.planner,
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tableName: p.tableName,
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failIfExists: p.failIfExists,
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isKeyed: p.isKeyed,
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keyPartitions: p.keyPartitions,
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columns: p.columns,
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}, nil
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}
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func (p *PlanOpCreateTable) WithChildren(children ...types.PlanOperator) (types.PlanOperator, error) {
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return nil, nil
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}
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type createTableRowIter struct {
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planner *ExecutionPlanner
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tableName string
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failIfExists bool
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isKeyed bool
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keyPartitions int
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columns []*createTableField
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}
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var _ types.RowIterator = (*createTableRowIter)(nil)
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func (i *createTableRowIter) Next(ctx context.Context) (types.Row, error) {
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//create the table
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options := pilosa.IndexOptions{
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Keys: i.isKeyed,
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TrackExistence: true,
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PartitionN: i.keyPartitions,
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}
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fields := make([]pilosa.CreateFieldObj, len(i.columns))
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for i, f := range i.columns {
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fields[i] = pilosa.CreateFieldObj{
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Name: f.name,
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Options: f.fos,
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}
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}
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// TODO (pok) add ability to add description here
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if err := i.planner.schemaAPI.CreateIndexAndFields(ctx, i.tableName, options, fields); err != nil {
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if _, ok := errors.Cause(err).(pilosa.ConflictError); ok {
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if i.failIfExists {
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return nil, err
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}
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} else {
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return nil, err
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}
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}
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return nil, types.ErrNoMoreRows
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}
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