BuildPlanTree used to build plan trees for the query.
()
| 43 | |
| 44 | // BuildPlanTree used to build plan trees for the query. |
| 45 | func (so *SimpleOptimizer) BuildPlanTree() (*planner.PlanTree, error) { |
| 46 | log := so.log |
| 47 | database := so.database |
| 48 | query := so.query |
| 49 | node := so.node |
| 50 | router := so.router |
| 51 | |
| 52 | plans := planner.NewPlanTree() |
| 53 | switch node.(type) { |
| 54 | case *sqlparser.DDL: |
| 55 | node := planner.NewDDLPlan(log, database, query, node.(*sqlparser.DDL), router) |
| 56 | plans.Add(node) |
| 57 | case *sqlparser.Insert: |
| 58 | node := planner.NewInsertPlan(log, database, query, node.(*sqlparser.Insert), router) |
| 59 | plans.Add(node) |
| 60 | case *sqlparser.Delete: |
| 61 | node := planner.NewDeletePlan(log, database, query, node.(*sqlparser.Delete), router) |
| 62 | plans.Add(node) |
| 63 | case *sqlparser.Update: |
| 64 | node := planner.NewUpdatePlan(log, database, query, node.(*sqlparser.Update), router) |
| 65 | plans.Add(node) |
| 66 | case *sqlparser.Select: |
| 67 | nod := node.(*sqlparser.Select) |
| 68 | selectNode := planner.NewSelectPlan(log, database, query, nod, router) |
| 69 | plans.Add(selectNode) |
| 70 | case *sqlparser.Union: |
| 71 | node := planner.NewUnionPlan(log, database, query, node.(*sqlparser.Union), router) |
| 72 | plans.Add(node) |
| 73 | case *sqlparser.Checksum, *sqlparser.Optimize, *sqlparser.Check: |
| 74 | node := planner.NewOthersPlan(log, database, query, node, router) |
| 75 | plans.Add(node) |
| 76 | default: |
| 77 | return nil, errors.Errorf("optimizer.unsupported.query.type[%+v]", node) |
| 78 | } |
| 79 | |
| 80 | // Build plantree. |
| 81 | if err := plans.Build(); err != nil { |
| 82 | return nil, err |
| 83 | } |
| 84 | return plans, nil |
| 85 | } |
no test coverage detected