CreateQuery t (children 3)
 Identifier t
 Columns definition (children 2)
  ExpressionList (children 1)
   ColumnDeclaration x (children 1)
    DataType UInt8
  ExpressionList (children 1)
   Projection (children 1)
    ProjectionSelectQuery (children 2)
     ExpressionList (children 1)
      Identifier x
     ExpressionList (children 1)
      Identifier x
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList