CreateQuery t_fill_arrays (children 3)
 Identifier t_fill_arrays
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration id (children 1)
    DataType String
   ColumnDeclaration mapCol (children 1)
    DataType Map (children 1)
     ExpressionList (children 2)
      DataType String
      DataType Array (children 1)
       ExpressionList (children 1)
        DataType String
 Storage definition (children 3)
  Function MergeTree
  Identifier id
  Set
