CreateQuery tab5 (children 3)
 Identifier tab5
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration a (children 1)
    DataType UInt32
   ColumnDeclaration b (children 1)
    DataType UInt32
   ColumnDeclaration c (children 1)
    DataType UInt32
   ColumnDeclaration d (children 1)
    DataType UInt32
 Storage definition (children 2)
  Function MergeTree
  Function multiply (children 1)
   ExpressionList (children 2)
    Function plus (children 1)
     ExpressionList (children 2)
      Identifier a
      Identifier b
    Identifier c
