CreateQuery T2 (children 4)
 Identifier T2
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration A (children 1)
    DataType Int32
   ColumnDeclaration B (children 1)
    DataType Int32
   ColumnDeclaration C (children 1)
    DataType Int32
 Storage definition (children 2)
  Function MergeTree
  Identifier A
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 1)
    ExpressionList (children 3)
     Literal UInt64_1 (alias A)
     Literal UInt64_2 (alias B)
     Literal UInt64_3 (alias C)
