こんにちわ is wrong Japanse. The correct word is こんにちは

_example/limit/limit.go

@@ -17,7 +17,7 @@ func createBulkInsertQuery(n int, start int) (query string, args []interface{})
 	for i := 0; i < n; i++ {
 		values[i] = "(?, ?)"
 		args[pos] = start + i
-		args[pos+1] = fmt.Sprintf("こんにちわ世界%03d", i)
+		args[pos+1] = fmt.Sprintf("こんにちは世界%03d", i)
 		pos += 2
 	}
 	query = fmt.Sprintf(

_example/simple/Dockerfile

@@ -33,7 +33,7 @@ RUN \
 RUN \
     # Smoke test
     set -o pipefail; \
-    /go/bin/simple | grep 99\ こんにちわ世界099
+    /go/bin/simple | grep 99\ こんにちは世界099
 
 # -----------------------------------------------------------------------------
 #  Main Stage

_example/simple/simple.go

@@ -37,7 +37,7 @@ func main() {
 	}
 	defer stmt.Close()
 	for i := 0; i < 100; i++ {
-		_, err = stmt.Exec(i, fmt.Sprintf("こんにちわ世界%03d", i))
+		_, err = stmt.Exec(i, fmt.Sprintf("こんにちは世界%03d", i))
 		if err != nil {
 			log.Fatal(err)
 		}