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126be915a9
* Implement Schemar.SetDatabaseOption(option, value string) This replaces the temporary `SetDatabaseOptions()` method, which replaced the entire DatabaseOptions struct, with `SetDatabaseOption` which takes an option/value pair of strings to set. * Add SetDatabaseOption to controller http handler and client This commit also: - renames some `writeLog` to `writelog` - updates ApplyDirective to call resource.Unlock() on any resources being removed from the local worker * Add Database related methods to SchemaAPI interface Currently all implementations of this interface are implemented with "unimplemented" errors on those methods. Next will be to implement the necessary methods. * SQL: CREATE DATABASE and SHOW DATABASES * SQL: DROP DATABASE * SQL: Add UNITS option to CREATE DATABASE * SQL: ALTER DATABASE * User serverlessStorage.Remove[*]Resource instead of resource.Unlock() * Add WITH keyword to CREATE/ALTER DATABASE * fix some WITH logic * linter fixes * WITH on CREATE DATABASE is not required
112 lines
2.8 KiB
Go
112 lines
2.8 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/featurebasedb/featurebase/v3"
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"github.com/featurebasedb/featurebase/v3/dax"
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"github.com/featurebasedb/featurebase/v3/sql3"
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"github.com/featurebasedb/featurebase/v3/sql3/planner/types"
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"github.com/pkg/errors"
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)
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// PlanOpCreateDatabase is a plan operator that creates a database.
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type PlanOpCreateDatabase struct {
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planner *ExecutionPlanner
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databaseName string
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failIfExists bool
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units int
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description string
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warnings []string
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}
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// NewPlanOpCreateDatabase returns a new PlanOpCreateDatabase planoperator
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func NewPlanOpCreateDatabase(p *ExecutionPlanner, databaseName string, failIfExists bool, units int, description string) *PlanOpCreateDatabase {
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return &PlanOpCreateDatabase{
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planner: p,
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databaseName: databaseName,
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failIfExists: failIfExists,
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units: units,
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description: description,
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warnings: make([]string, 0),
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}
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}
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func (p *PlanOpCreateDatabase) 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["name"] = p.databaseName
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result["failIfExists"] = p.failIfExists
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return result
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}
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func (p *PlanOpCreateDatabase) String() string {
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return ""
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}
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func (p *PlanOpCreateDatabase) AddWarning(warning string) {
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p.warnings = append(p.warnings, warning)
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}
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func (p *PlanOpCreateDatabase) Warnings() []string {
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return p.warnings
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}
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func (p *PlanOpCreateDatabase) Schema() types.Schema {
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return types.Schema{}
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}
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func (p *PlanOpCreateDatabase) Children() []types.PlanOperator {
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return []types.PlanOperator{}
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}
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func (p *PlanOpCreateDatabase) Iterator(ctx context.Context, row types.Row) (types.RowIterator, error) {
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return &createDatabaseRowIter{
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planner: p.planner,
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databaseName: p.databaseName,
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failIfExists: p.failIfExists,
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units: p.units,
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description: p.description,
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}, nil
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}
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func (p *PlanOpCreateDatabase) WithChildren(children ...types.PlanOperator) (types.PlanOperator, error) {
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return nil, nil
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}
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type createDatabaseRowIter struct {
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planner *ExecutionPlanner
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databaseName string
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failIfExists bool
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units int
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description string
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}
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var _ types.RowIterator = (*createDatabaseRowIter)(nil)
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func (i *createDatabaseRowIter) Next(ctx context.Context) (types.Row, error) {
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//create the database
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db := &dax.Database{
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Name: dax.DatabaseName(i.databaseName),
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Options: dax.DatabaseOptions{
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WorkersMin: i.units,
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WorkersMax: i.units,
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},
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Description: i.description,
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}
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if err := i.planner.schemaAPI.CreateDatabase(ctx, db); 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, sql3.NewErrDatabaseExists(0, 0, i.databaseName)
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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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