mirror of
https://github.com/featurebasedb/featurebase.git
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135 lines
3.4 KiB
Go
135 lines
3.4 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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"time"
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"github.com/featurebasedb/featurebase/v3/dax"
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"github.com/featurebasedb/featurebase/v3/sql3/parser"
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"github.com/featurebasedb/featurebase/v3/sql3/planner/types"
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)
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// PlanOpFeatureBaseDatabases wraps a []*Database that is returned from
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// schemaAPI.Schema().
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type PlanOpFeatureBaseDatabases struct {
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planner *ExecutionPlanner
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dbs []*dax.Database
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warnings []string
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}
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func NewPlanOpFeatureBaseDatabases(planner *ExecutionPlanner, dbs []*dax.Database) *PlanOpFeatureBaseDatabases {
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return &PlanOpFeatureBaseDatabases{
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planner: planner,
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dbs: dbs,
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warnings: make([]string, 0),
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}
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}
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func (p *PlanOpFeatureBaseDatabases) 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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result["_schema"] = p.Schema().Plan()
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return result
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}
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func (p *PlanOpFeatureBaseDatabases) String() string {
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return ""
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}
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func (p *PlanOpFeatureBaseDatabases) AddWarning(warning string) {
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p.warnings = append(p.warnings, warning)
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}
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func (p *PlanOpFeatureBaseDatabases) Warnings() []string {
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return p.warnings
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}
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func (p *PlanOpFeatureBaseDatabases) Schema() types.Schema {
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return types.Schema{
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&types.PlannerColumn{
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RelationName: "fb_databases",
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ColumnName: string(dax.PrimaryKeyFieldName),
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Type: parser.NewDataTypeString(),
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},
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&types.PlannerColumn{
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RelationName: "fb_databases",
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ColumnName: "name",
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Type: parser.NewDataTypeString(),
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},
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&types.PlannerColumn{
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RelationName: "fb_databases",
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ColumnName: "owner",
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Type: parser.NewDataTypeString(),
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},
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&types.PlannerColumn{
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RelationName: "fb_databases",
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ColumnName: "updated_by",
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Type: parser.NewDataTypeString(),
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},
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&types.PlannerColumn{
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RelationName: "fb_databases",
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ColumnName: "created_at",
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Type: parser.NewDataTypeTimestamp(),
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},
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&types.PlannerColumn{
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RelationName: "fb_databases",
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ColumnName: "updated_at",
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Type: parser.NewDataTypeTimestamp(),
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},
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&types.PlannerColumn{
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RelationName: "fb_databases",
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ColumnName: "description",
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Type: parser.NewDataTypeString(),
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},
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}
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}
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func (p *PlanOpFeatureBaseDatabases) Children() []types.PlanOperator {
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return []types.PlanOperator{}
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}
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func (p *PlanOpFeatureBaseDatabases) Iterator(ctx context.Context, row types.Row) (types.RowIterator, error) {
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return &showDatabasesRowIter{
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planner: p.planner,
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dbs: p.dbs,
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}, nil
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}
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func (p *PlanOpFeatureBaseDatabases) WithChildren(children ...types.PlanOperator) (types.PlanOperator, error) {
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return NewPlanOpFeatureBaseDatabases(p.planner, p.dbs), nil
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}
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type showDatabasesRowIter struct {
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planner *ExecutionPlanner
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dbs []*dax.Database
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rowIndex int
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}
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var _ types.RowIterator = (*showDatabasesRowIter)(nil)
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func (i *showDatabasesRowIter) Next(ctx context.Context) (types.Row, error) {
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if i.rowIndex < len(i.dbs) {
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dbID := i.dbs[i.rowIndex].ID
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dbName := i.dbs[i.rowIndex].Name
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createdAt := time.Unix(i.dbs[i.rowIndex].CreatedAt, 0)
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updatedAt := time.Unix(i.dbs[i.rowIndex].UpdatedAt, 0)
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row := []interface{}{
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dbID,
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dbName,
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i.dbs[i.rowIndex].Owner,
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i.dbs[i.rowIndex].UpdatedBy,
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createdAt.Format(time.RFC3339),
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updatedAt.Format(time.RFC3339),
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i.dbs[i.rowIndex].Options.WorkersMin,
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i.dbs[i.rowIndex].Description,
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}
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i.rowIndex += 1
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return row, nil
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}
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return nil, types.ErrNoMoreRows
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}
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