package main

import (
	"dsSupport/Utils/CommonUtil"
	"dsSupport/Utils/DbUtil"
	"fmt"
)

var db = DbUtil.Engine

func main() {
	//1、读取每一张需要创建的表
	sql := "select * from t_dw_table"
	list, _ := db.SQL(sql).Query().List()

	for i := range list {
		tableId := list[i]["table_id"].(int64)
		tableName := list[i]["table_name"].(string)
		createTableSql := `DROP TABLE IF EXISTS "public"."` + tableName + `";`+"\r\n"
		createTableSql += `CREATE TABLE "public"."` + tableName + `" (`+"\r\n"
		//2、根据表名，获取相应的创建表的信息
		sql = `select * from t_dw_table_field where table_id=?`
		list2, _ := db.SQL(sql, tableId).Query().List()
		for i2 := range list2 {
			dataType := list2[i2]["data_type"].(string)
			fieldLength := list2[i2]["field_length"].(int64)
			isNull := list2[i2]["is_null"].(int64)
			var c = ""
			if dataType == "int" {
				c = "int" + CommonUtil.ConvertInt64ToString(fieldLength)
			} else {
				c = dataType + "(" + CommonUtil.ConvertInt64ToString(fieldLength) + ") " + ` COLLATE "pg_catalog"."default" `
			}
			if isNull==1{
				c+="NOT NULL,"
			}else{
				if i2< len(list2)-1{
					c+=","
				}
			}
			createTableSql += `"` + list2[i2]["field_name"].(string) + `" ` + c+"\r\n"
		}
		createTableSql += `);`+"\r\n"
		fmt.Println(createTableSql)
	}
}