initial import

example/clickhouse/ch.go

@@ -0,0 +1,65 @@
+package main
+
+import (
+	"log"
+	"time"
+
+	"zero/core/stores/clickhouse"
+	"zero/core/stores/sqlx"
+)
+
+func main() {
+	conn := clickhouse.New("tcp://127.0.0.1:9000")
+	_, err := conn.Exec(`
+			CREATE TABLE IF NOT EXISTS example (
+				country_code FixedString(2),
+				os_id        UInt8,
+				browser_id   UInt8,
+				categories   Array(Int16),
+				action_day   Date,
+				action_time  DateTime
+			) engine=Memory
+		`)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	conn.Transact(func(session sqlx.Session) error {
+		stmt, err := session.Prepare("INSERT INTO example (country_code, os_id, browser_id, categories, action_day, action_time) VALUES (?, ?, ?, ?, ?, ?)")
+		if err != nil {
+			log.Fatal(err)
+		}
+		defer stmt.Close()
+
+		for i := 0; i < 10; i++ {
+			_, err := stmt.Exec("RU", 10+i, 100+i, []int16{1, 2, 3}, time.Now(), time.Now())
+			if err != nil {
+				log.Fatal(err)
+			}
+		}
+
+		return nil
+	})
+
+	var items []struct {
+		CountryCode string    `db:"country_code"`
+		OsID        uint8     `db:"os_id"`
+		BrowserID   uint8     `db:"browser_id"`
+		Categories  []int16   `db:"categories"`
+		ActionTime  time.Time `db:"action_time"`
+	}
+
+	err = conn.QueryRows(&items, "SELECT country_code, os_id, browser_id, categories, action_time FROM example")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	for _, item := range items {
+		log.Printf("country: %s, os: %d, browser: %d, categories: %v, action_time: %s",
+			item.CountryCode, item.OsID, item.BrowserID, item.Categories, item.ActionTime)
+	}
+
+	if _, err := conn.Exec("DROP TABLE example"); err != nil {
+		log.Fatal(err)
+	}
+}