SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 4)
    Function greater (children 1)
     ExpressionList (children 2)
      Identifier primary_key_bytes_in_memory
      Literal UInt64_0
    Function less (children 1)
     ExpressionList (children 2)
      Identifier primary_key_bytes_in_memory
      Literal UInt64_16000
    Function less (children 1)
     ExpressionList (children 2)
      Identifier primary_key_bytes_in_memory_allocated
      Literal UInt64_16000
    Function less (children 1)
     ExpressionList (children 2)
      Function divide (children 1)
       ExpressionList (children 2)
        Identifier primary_key_bytes_in_memory_allocated
        Identifier primary_key_bytes_in_memory
      Literal Float64_1.1
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.parts
   Function and (children 1)
    ExpressionList (children 2)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier database
       Literal \'test\'
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier table
       Literal \'hits\'
