SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Literal \'01546_log_queries_min_query_duration_ms-slow\'
    Function sleep (children 1)
     ExpressionList (children 1)
      Literal Float64_0.4
 Identifier Null
