CreateQuery userid_test (children 3)
 Identifier userid_test
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration userid (children 1)
    DataType UInt64
 Storage definition (children 4)
  Function MergeTree (children 1)
   ExpressionList
  Function intDiv (children 1)
   ExpressionList (children 2)
    Identifier userid
    Literal UInt64_500
  Identifier userid
  Set
