CreateQuery 01760_db polygons (children 4)
 Identifier 01760_db
 Identifier polygons
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration key (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType Array (children 1)
       ExpressionList (children 1)
        DataType Array (children 1)
         ExpressionList (children 1)
          DataType Tuple (children 1)
           ExpressionList (children 2)
            DataType Float64
            DataType Float64
   ColumnDeclaration name (children 1)
    DataType String
   ColumnDeclaration value (children 1)
    DataType UInt64
   ColumnDeclaration value_nullable (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType UInt64
 Storage definition (children 1)
  Function Memory