CreateQuery t1 (children 3)
 Identifier t1
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration a (children 1)
    DataType UInt32
 Storage definition (children 4)
  Function MergeTree
  Function modulo (children 1)
   ExpressionList (children 2)
    Identifier a
    Literal UInt64_4
  Function tuple (children 1)
   ExpressionList
  Set