In prepared statement, CsvScannableTable.scan is called twice

  Class.forName("org.apache.calcite.jdbc.Driver")
  val properties: Properties = new Properties()
  properties.setProperty("caseSensitive","true")
  val connection = DriverManager.getConnection("jdbc:calcite:", properties)
  val calciteConnection=connection.unwrap(classOf[CalciteConnection])

  val schema= (new CsvSchemaFactory()).create(calciteConnection.getRootSchema,null,Map[String,AnyRef]("directory" -> "src/main/resources/csv","flavor" -> "scannable").asJava)

  calciteConnection.getRootSchema.add("TEST",schema)


  val statement2=calciteConnection.prepareStatement("select \"tarih\" from \"TEST\".\"timeseries\" where \"sensor\" = ?")

  statement2.setString(1,"sensor38")
  val resultSet1=statement2.executeQuery()
  while(resultSet1.next())
    println(resultSet1.getString("tarih"))