CreateQuery nation (children 3)
 Identifier nation
 Columns definition (children 2)
  ExpressionList (children 4)
   ColumnDeclaration n_nationkey (children 1)
    DataType Int32
   ColumnDeclaration n_name (children 1)
    DataType FixedString (children 1)
     ExpressionList (children 1)
      Literal UInt64_25
   ColumnDeclaration n_regionkey (children 1)
    DataType Int32
   ColumnDeclaration n_comment (children 1)
    DataType String
  ExpressionList (children 1)
   Constraint (children 1)
    Function greaterOrEquals (children 1)
     ExpressionList (children 2)
      Identifier n_nationkey
      Literal UInt64_0
 Storage definition (children 2)
  Function MergeTree
  Identifier n_nationkey