CreateQuery array_test (children 3)
 Identifier array_test
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration floats (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType Float64
   ColumnDeclaration strings (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType String
   ColumnDeclaration nullable_strings (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType Nullable (children 1)
       ExpressionList (children 1)
        DataType String
 Storage definition (children 1)
  Function Memory