Bugfix? create pgql database if not exists

With the current master branch code
(commit afb2121)
I see the following error:

root@vm2:/home/vagrant# kine --debug --endpoint postgres://postgres:postgresql@localhost:5432/foobster
INFO[2023-11-03T20:07:09.379099258Z] metrics server is starting to listen at :8080
INFO[2023-11-03T20:07:09.379709686Z] starting metrics server path /metrics
FATA[2023-11-03T20:07:09.40247106Z] building kine: failed to connect to
`host=localhost user=postgres database=foobster`: server error (FATAL:
database "foobster" does not exist (SQLSTATE 3D000))

This is fixed with the current commit.

Signed-off-by: Oz Tiram <oz.tiram@gmail.com>

pkg/drivers/pgsql/pgsql.go

@@ -134,34 +134,28 @@ func createDBIfNotExist(dataSourceName string) error {
 	}
 
 	dbName := strings.SplitN(u.Path, "/", 2)[1]
-	db, err := sql.Open("pgx", dataSourceName)
+	u.Path = "/postgres"
+	db, err := sql.Open("pgx", u.String())
 	if err != nil {
 		return err
 	}
 	defer db.Close()
 
-	err = db.Ping()
-	// check if database already exists
-	if _, ok := err.(*pgconn.PgError); !ok {
+	var exists bool
+	err = db.QueryRow("SELECT 1 FROM pg_database WHERE datname = $1", dbName).Scan(&exists)
+	if err != nil && err != sql.ErrNoRows {
 		return err
 	}
-	if err := err.(*pgconn.PgError); err.Code != pgerrcode.DuplicateDatabase {
-		if err.Code != pgerrcode.InvalidCatalogName {
-			return err
-		}
-		// database doesn't exit, will try to create it
-		u.Path = "/postgres"
-		db, err := sql.Open("pgx", u.String())
-		if err != nil {
-			return err
-		}
-		defer db.Close()
-		stmt := createDB + dbName + ";"
+
+	stmt := createDB + dbName + ";"
+
+	if !exists {
 		logrus.Tracef("SETUP EXEC : %v", util.Stripped(stmt))
 		_, err = db.Exec(stmt)
 		if err != nil {
 			return err
 		}
+		logrus.Tracef("created database: %s", dbName)
 	}
 	return nil
 }