CreateQuery region (children 3)
 Identifier region
 Columns definition (children 2)
  ExpressionList (children 3)
   ColumnDeclaration r_regionkey (children 1)
    DataType Int32
   ColumnDeclaration r_name (children 1)
    DataType FixedString (children 1)
     ExpressionList (children 1)
      Literal UInt64_25
   ColumnDeclaration r_comment (children 1)
    DataType String
  ExpressionList (children 1)
   Constraint (children 1)
    Function greaterOrEquals (children 1)
     ExpressionList (children 2)
      Identifier r_regionkey
      Literal UInt64_0
 Storage definition (children 2)
  Function MergeTree
  Identifier r_regionkey