CreateQuery t2 (children 3)
 Identifier t2
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration id1 (children 1)
    DataType UInt32
   ColumnDeclaration id2 (children 1)
    DataType UInt32
 Storage definition (children 3)
  Function MergeTree
  Identifier id1
  Set
