mirror of
https://github.com/featurebasedb/featurebase.git
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1a6c15263d
* ID sql3 internal type representation is int64; fixed a bug that assumed incorrectly that it wasn't * refactored some names for clarity * primary: get nested loop joins to work; secondary get brute force aggregations for SUM working * added tests; removed debug output * review feedback * Update sql3/planner/compileselect.go review feedback Co-authored-by: Travis Turner <travis@pilosa.com> Co-authored-by: Travis Turner <travis@pilosa.com>
84 lines
1.9 KiB
Go
84 lines
1.9 KiB
Go
// Copyright 2022 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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"github.com/molecula/featurebase/v3/sql3"
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"github.com/molecula/featurebase/v3/sql3/planner/types"
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)
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// PlanOpRelAlias implements an alias for a relation
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type PlanOpRelAlias struct {
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ChildOp types.PlanOperator
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alias string
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warnings []string
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}
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func NewPlanOpRelAlias(alias string, child types.PlanOperator) *PlanOpRelAlias {
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return &PlanOpRelAlias{
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ChildOp: child,
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alias: alias,
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warnings: make([]string, 0),
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}
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}
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func (p *PlanOpRelAlias) Schema() types.Schema {
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schema := p.ChildOp.Schema()
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for _, s := range schema {
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s.RelationName = p.alias
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}
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return schema
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}
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func (p *PlanOpRelAlias) Iterator(ctx context.Context, row types.Row) (types.RowIterator, error) {
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return p.ChildOp.Iterator(ctx, row)
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}
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func (p *PlanOpRelAlias) Children() []types.PlanOperator {
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return []types.PlanOperator{
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p.ChildOp,
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}
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}
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func (p *PlanOpRelAlias) WithChildren(children ...types.PlanOperator) (types.PlanOperator, error) {
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if len(children) != 1 {
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return nil, sql3.NewErrInternalf("unexpected number of children '%d'", len(children))
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}
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return NewPlanOpRelAlias(p.alias, children[0]), nil
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}
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func (p *PlanOpRelAlias) 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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sc := make([]string, 0)
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for _, e := range p.Schema() {
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sc = append(sc, fmt.Sprintf("'%s', '%s', '%s'", e.ColumnName, e.RelationName, e.Type.TypeName()))
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}
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result["_schema"] = sc
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result["alias"] = p.alias
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result["child"] = p.ChildOp.Plan()
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return result
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}
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func (p *PlanOpRelAlias) String() string {
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return ""
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}
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func (p *PlanOpRelAlias) AddWarning(warning string) {
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p.warnings = append(p.warnings, warning)
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}
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func (p *PlanOpRelAlias) Warnings() []string {
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var w []string
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w = append(w, p.warnings...)
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w = append(w, p.ChildOp.Warnings()...)
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return w
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}
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func (p *PlanOpRelAlias) Name() string {
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return p.alias
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}
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