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TDengine

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T
TDengine
提交 2dafe91d 编写于 作者: S Shengliang Guan
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Merge remote-tracking branch 'origin/develop' into feature/platform

上级 55d1b902 d3d80f59
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Showing with 38 addition and 41 deletion
tests/examples/go/src/taosapp/taosapp.go
浏览文件 @ 2dafe91d
......@@ -13,13 +13,13 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package main
import (
"database/sql"
"time"
"log"
"fmt"
_ "taosSql"
_ "github.com/taosdata/driver-go/taosSql"
)
func main() {
......@@ -29,7 +29,7 @@ func main() {
fmt.Printf("\n======== start demo test ========\n")
// open connect to taos server
db, err := sql.Open(taosDriverName, "root:taosdata@/tcp(127.0.0.1:0)/demodb")
db, err := sql.Open(taosDriverName, "root:taosdata@/tcp(127.0.0.1:0)/")
if err != nil {
log.Fatalf("Open database error: %s\n", err)
}
......@@ -58,11 +58,11 @@ func main() {
func drop_database(db *sql.DB, demodb string) {
st := time.Now().Nanosecond()
res, err := db.Exec("drop database " + demodb)
checkErr(err)
res, err := db.Exec("drop database if exists " + demodb)
checkErr(err, "drop database if exists " + demodb)
affectd, err := res.RowsAffected()
checkErr(err)
checkErr(err, "drop db, res.RowsAffected")
et := time.Now().Nanosecond()
......@@ -73,10 +73,10 @@ func create_database(db *sql.DB, demodb string) {
st := time.Now().Nanosecond()
// create database
res, err := db.Exec("create database " + demodb)
checkErr(err)
checkErr(err, "create db, db.Exec")
affectd, err := res.RowsAffected()
checkErr(err)
checkErr(err, "create db, res.RowsAffected")
et := time.Now().Nanosecond()
......@@ -89,10 +89,10 @@ func use_database(db *sql.DB, demodb string) {
st := time.Now().Nanosecond()
// use database
res, err := db.Exec("use " + demodb) // notes: must no quote to db name
checkErr(err)
checkErr(err, "use db db.Exec")
affectd, err := res.RowsAffected()
checkErr(err)
checkErr(err, "use db, res.RowsAffected")
et := time.Now().Nanosecond()
......@@ -103,10 +103,10 @@ func create_table(db *sql.DB, demot string) {
st := time.Now().Nanosecond()
// create table
res, err := db.Exec("create table " + demot + " (ts timestamp, id int, name binary(8), len tinyint, flag bool, notes binary(8), fv float, dv double)")
checkErr(err)
checkErr(err, "create table db.Exec")
affectd, err := res.RowsAffected()
checkErr(err)
checkErr(err, "create table res.RowsAffected")
et := time.Now().Nanosecond()
fmt.Printf("create table result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9)
......@@ -120,10 +120,10 @@ func insert_data(db *sql.DB, demot string) {
" (now+1s, 101, 'shanghai', 11, true, 'two', 789.123, 789.123)" +
" (now+2s, 102, 'shenzhen', 12, false, 'three', 456.789, 456.789)")
checkErr(err)
checkErr(err, "insert data, db.Exec")
affectd, err := res.RowsAffected()
checkErr(err)
checkErr(err, "insert data res.RowsAffected")
et := time.Now().Nanosecond()
fmt.Printf("insert data result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9)
......@@ -133,7 +133,7 @@ func select_data(db *sql.DB, demot string) {
st := time.Now().Nanosecond()
rows, err := db.Query("select * from ? " , demot) // go text mode
checkErr(err)
checkErr(err, "select db.Query")
fmt.Printf("%10s%s%8s %5s %9s%s %s %8s%s %7s%s %8s%s %4s%s %5s%s\n", " ","ts", " ", "id"," ", "name"," ","len", " ","flag"," ", "notes", " ", "fv", " ", " ", "dv")
var affectd int
......@@ -148,7 +148,7 @@ func select_data(db *sql.DB, demot string) {
var dv float64
err = rows.Scan(&ts, &id, &name, &len, &flag, &notes, &fv, &dv)
checkErr(err)
checkErr(err, "select rows.Scan")
fmt.Printf("%s\t", ts)
fmt.Printf("%d\t",id)
......@@ -170,15 +170,11 @@ func select_data(db *sql.DB, demot string) {
func drop_database_stmt(db *sql.DB,demodb string) {
st := time.Now().Nanosecond()
// drop test db
stmt, err := db.Prepare("drop database ?")
checkErr(err)
defer stmt.Close()
res, err := stmt.Exec(demodb)
checkErr(err)
res, err := db.Exec("drop database if exists " + demodb)
checkErr(err, "drop database " + demodb)
affectd, err := res.RowsAffected()
checkErr(err)
checkErr(err, "drop db, res.RowsAffected")
et := time.Now().Nanosecond()
fmt.Printf("drop database result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9)
......@@ -189,15 +185,15 @@ func create_database_stmt(db *sql.DB,demodb string) {
// create database
//var stmt interface{}
stmt, err := db.Prepare("create database ?")
checkErr(err)
checkErr(err, "create db, db.Prepare")
//var res driver.Result
res, err := stmt.Exec(demodb)
checkErr(err)
checkErr(err, "create db, stmt.Exec")
//fmt.Printf("Query OK, %d row(s) affected()", res.RowsAffected())
affectd, err := res.RowsAffected()
checkErr(err)
checkErr(err, "create db, res.RowsAffected")
et := time.Now().Nanosecond()
fmt.Printf("create database result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9)
......@@ -208,13 +204,13 @@ func use_database_stmt (db *sql.DB,demodb string) {
// create database
//var stmt interface{}
stmt, err := db.Prepare("use " + demodb)
checkErr(err)
checkErr(err, "use db, db.Prepare")
res, err := stmt.Exec()
checkErr(err)
checkErr(err, "use db, stmt.Exec")
affectd, err := res.RowsAffected()
checkErr(err)
checkErr(err, "use db, res.RowsAffected")
et := time.Now().Nanosecond()
fmt.Printf("use database result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9)
......@@ -224,14 +220,14 @@ func create_table_stmt (db *sql.DB,demot string) {
st := time.Now().Nanosecond()
// create table
// (ts timestamp, id int, name binary(8), len tinyint, flag bool, notes binary(8), fv float, dv double)
stmt, err := db.Prepare("create table ? (? timestamp, ? int, ? binary(8), ? tinyint, ? bool, ? binary(8), ? float, ? double)")
checkErr(err)
stmt, err := db.Prepare("create table ? (? timestamp, ? int, ? binary(10), ? tinyint, ? bool, ? binary(8), ? float, ? double)")
checkErr(err, "create table db.Prepare")
res, err := stmt.Exec(demot, "ts", "id", "name", "len", "flag", "notes", "fv", "dv")
checkErr(err)
checkErr(err, "create table stmt.Exec")
affectd, err := res.RowsAffected()
checkErr(err)
checkErr(err, "create table res.RowsAffected")
et := time.Now().Nanosecond()
fmt.Printf("create table result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9)
......@@ -241,15 +237,15 @@ func insert_data_stmt(db *sql.DB,demot string) {
st := time.Now().Nanosecond()
// insert data into table
stmt, err := db.Prepare("insert into ? values(?, ?, ?, ?, ?, ?, ?, ?) (?, ?, ?, ?, ?, ?, ?, ?) (?, ?, ?, ?, ?, ?, ?, ?)")
checkErr(err)
checkErr(err, "insert db.Prepare")
res, err := stmt.Exec(demot, "now" , 1000, "'haidian'" , 6, true, "'AI world'", 6987.654, 321.987,
"now+1s", 1001, "'changyang'" , 7, false, "'DeepMode'", 12356.456, 128634.456,
"now+2s", 1002, "'chuangping'" , 8, true, "'database'", 3879.456, 65433478.456,)
checkErr(err)
checkErr(err, "insert data, stmt.Exec")
affectd, err := res.RowsAffected()
checkErr(err)
checkErr(err, "res.RowsAffected")
et := time.Now().Nanosecond()
fmt.Printf("insert data result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9)
......@@ -259,12 +255,12 @@ func select_data_stmt(db *sql.DB, demot string) {
st := time.Now().Nanosecond()
stmt, err := db.Prepare("select ?, ?, ?, ?, ?, ?, ?, ? from ?" ) // go binary mode
checkErr(err)
checkErr(err, "db.Prepare")
rows, err := stmt.Query("ts", "id","name","len", "flag","notes", "fv", "dv", demot)
checkErr(err)
checkErr(err, "stmt.Query")
fmt.Printf("%10s%s%8s %5s %9s%s %s %8s%s %7s%s %8s%s %11s%s %14s%s\n", " ","ts", " ", "id"," ", "name"," ","len", " ","flag"," ", "notes", " ", "fv", " ", " ", "dv")
fmt.Printf("%10s%s%8s %5s %8s%s %s %10s%s %7s%s %8s%s %11s%s %14s%s\n", " ","ts", " ", "id"," ", "name"," ","len", " ","flag"," ", "notes", " ", "fv", " ", " ", "dv")
var affectd int
for rows.Next() {
var ts string
......@@ -279,7 +275,7 @@ func select_data_stmt(db *sql.DB, demot string) {
err = rows.Scan(&ts, &id, &name, &len, &flag, &notes, &fv, &dv)
//fmt.Println("start scan fields from row.rs, &fv:", &fv)
//err = rows.Scan(&fv)
checkErr(err)
checkErr(err, "rows.Scan")
fmt.Printf("%s\t", ts)
fmt.Printf("%d\t",id)
......@@ -298,8 +294,9 @@ func select_data_stmt(db *sql.DB, demot string) {
fmt.Printf("insert data result:\n %d row(s) affectd (%6.6fs)\n\n", affectd, (float32(et-st))/1E9)
}
func checkErr(err error) {
func checkErr(err error, prompt string) {
if err != nil {
fmt.Printf("%s\n", prompt)
panic(err)
}
}
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