CreateQuery date_table (children 3)
 Identifier date_table
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration id (children 1)
    DataType UInt32
   ColumnDeclaration val (children 1)
    DataType String
   ColumnDeclaration start (children 1)
    DataType Date
   ColumnDeclaration end (children 1)
    DataType Date
 Storage definition (children 1)
  Function Memory (children 1)
   ExpressionList
