CreateQuery t_proj2 (children 3)
 Identifier t_proj2
 Columns definition (children 2)
  ExpressionList (children 2)
   ColumnDeclaration a (children 1)
    DataType UInt32
   ColumnDeclaration b (children 1)
    DataType UInt32
  ExpressionList (children 1)
   Projection (children 1)
    ProjectionSelectQuery (children 2)
     ExpressionList (children 1)
      Identifier a
     Function multiply (children 1)
      ExpressionList (children 2)
       Identifier b
       Literal UInt64_2
 Storage definition (children 2)
  Function MergeTree
  Identifier a
