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main.go
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package main
import (
"fmt"
"github.com/FiGHtDDB/parser"
"github.com/FiGHtDDB/storage"
)
func printTree(node parser.PlanTreeNode, tree *parser.PlanTree, num int32) {
fmt.Println(node.TmpTable)
if node.Left != -1 {
leftNode := tree.Nodes[node.Left]
fmt.Println("left: ", leftNode)
printTree(leftNode, tree, num+1)
} else {
fmt.Println("no left node")
}
if node.Right != -1 {
rightNode := tree.Nodes[node.Right]
fmt.Println("right: ", rightNode)
printTree(rightNode, tree, num+1)
} else {
fmt.Println("no right node")
}
}
func main() {
storage.LoadConfig("main")
// // publisher
// frag := new(storage.FragSchema)
// frag.SiteName = "main"
// frag.Cols = append(frag.Cols, "id", "name", "nation")
// frag.Conditions = append(frag.Conditions,
// storage.Condition{Col: "id", Type: "int", Comp: "<", Value: "104000"},
// storage.Condition{Col: "nation", Type: "string", Comp: "=", Value: "'PRC'"},
// )
// t.FragSchema = append(t.FragSchema, *frag)
// frag = new(storage.FragSchema)
// frag.SiteName = "segment1"
// frag.Cols = append(frag.Cols, "id", "name", "nation")
// frag.Conditions = append(frag.Conditions,
// storage.Condition{Col: "id", Type: "int", Comp: "<", Value: "104000"},
// storage.Condition{Col: "nation", Type: "string", Comp: "=", Value: "'USA'"},
// )
// t.FragSchema = append(t.FragSchema, *frag)
// frag = new(storage.FragSchema)
// frag.SiteName = "segment2"
// frag.Cols = append(frag.Cols, "id", "name", "nation")
// frag.Conditions = append(frag.Conditions,
// storage.Condition{Col: "id", Type: "int", Comp: ">=", Value: "104000"},
// storage.Condition{Col: "nation", Type: "string", Comp: "=", Value: "'PRC'"},
// )
// t.FragSchema = append(t.FragSchema, *frag)
// frag = new(storage.FragSchema)
// frag.SiteName = "segment3"
// frag.Cols = append(frag.Cols, "id", "name", "nation")
// frag.Conditions = append(frag.Conditions,
// storage.Condition{Col: "id", Type: "int", Comp: ">=", Value: "104000"},
// storage.Condition{Col: "nation", Type: "string", Comp: "=", Value: "'USA'"},
// )
// t.FragSchema = append(t.FragSchema, *frag)
// err := storage.StoreTableMeta(&t)
// if err != nil {
// fmt.Println(err)
// return
// }
// // book
// t.TableName = "book"
// t.FragNum = 3
// t.FragSchema = t.FragSchema[:0]
// frag = new(storage.FragSchema)
// frag.SiteName = "main"
// frag.Cols = append(frag.Cols, "id", "title", "authors", "publisher_id", "copies")
// frag.Conditions = append(frag.Conditions,
// storage.Condition{Col: "id", Type: "int", Comp: "<", Value: "205000"},
// )
// t.FragSchema = append(t.FragSchema, *frag)
// frag = new(storage.FragSchema)
// frag.SiteName = "segment1"
// frag.Cols = append(frag.Cols, "id", "title", "authors", "publisher_id", "copies")
// frag.Conditions = append(frag.Conditions,
// storage.Condition{Col: "id", Type: "int", Comp: ">=", Value: "205000"},
// storage.Condition{Col: "id", Type: "int", Comp: "<", Value: "210000"},
// )
// t.FragSchema = append(t.FragSchema, *frag)
// frag = new(storage.FragSchema)
// frag.SiteName = "segment2"
// frag.Cols = append(frag.Cols, "id", "title", "authors", "publisher_id", "copies")
// frag.Conditions = append(frag.Conditions,
// storage.Condition{Col: "id", Type: "int", Comp: ">=", Value: "210000"},
// )
// t.FragSchema = append(t.FragSchema, *frag)
// err = storage.StoreTableMeta(&t)
// if err != nil {
// fmt.Println(err)
// return
// }
// // customer
// t.TableName = "customer"
// t.FragNum = 2
// t.FragSchema = t.FragSchema[:0]
// frag = new(storage.FragSchema)
// frag.SiteName = "main"
// frag.Cols = append(frag.Cols, "id", "name")
// t.FragSchema = append(t.FragSchema, *frag)
// frag = new(storage.FragSchema)
// frag.SiteName = "segment1"
// frag.Cols = append(frag.Cols, "id", "rank")
// t.FragSchema = append(t.FragSchema, *frag)
// err = storage.StoreTableMeta(&t)
// if err != nil {
// fmt.Println(err)
// return
// }
// // orders
// t.TableName = "orders"
// t.FragNum = 4
// t.FragSchema = t.FragSchema[:0]
// frag = new(storage.FragSchema)
// frag.SiteName = "main"
// frag.Cols = append(frag.Cols, "customer_id", "book_id", "quantity")
// frag.Conditions = append(frag.Conditions,
// storage.Condition{Col: "customer_id", Type: "int", Comp: "<", Value: "307000"},
// storage.Condition{Col: "book_id", Type: "int", Comp: "<", Value: "215000"},
// )
// t.FragSchema = append(t.FragSchema, *frag)
// frag = new(storage.FragSchema)
// frag.SiteName = "segment1"
// frag.Cols = append(frag.Cols, "customer_id", "book_id", "quantity")
// frag.Conditions = append(frag.Conditions,
// storage.Condition{Col: "customer_id", Type: "int", Comp: "<", Value: "307000"},
// storage.Condition{Col: "book_id", Type: "int", Comp: ">=", Value: "215000"},
// )
// t.FragSchema = append(t.FragSchema, *frag)
// frag = new(storage.FragSchema)
// frag.SiteName = "segment2"
// frag.Cols = append(frag.Cols, "customer_id", "book_id", "quantity")
// frag.Conditions = append(frag.Conditions,
// storage.Condition{Col: "customer_id", Type: "int", Comp: ">=", Value: "307000"},
// storage.Condition{Col: "book_id", Type: "int", Comp: "<", Value: "215000"},
// )
// t.FragSchema = append(t.FragSchema, *frag)
// frag = new(storage.FragSchema)
// frag.SiteName = "segment3"
// frag.Cols = append(frag.Cols, "customer_id", "book_id", "quantity")
// frag.Conditions = append(frag.Conditions,
// storage.Condition{Col: "customer_id", Type: "int", Comp: ">=", Value: "307000"},
// storage.Condition{Col: "book_id", Type: "int", Comp: ">=", Value: "215000"},
// )
// t.FragSchema = append(t.FragSchema, *frag)
// err = storage.StoreTableMeta(&t)
// if err != nil {
// fmt.Println(err)
// return
// }
err := storage.DropTableMeta("book")
if err != nil {
fmt.Println(err)
return
}
err = storage.DropTableMeta("customer")
if err != nil {
fmt.Println(err)
return
}
err = storage.DropTableMeta("orders")
if err != nil {
fmt.Println(err)
return
}
err = storage.DropTableMeta("publisher")
if err != nil {
fmt.Println(err)
return
}
}