="r-pr">#&gt;</span>   "b",</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   "q")) %.&gt;%</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  set_indicator(., one_two = a IN set) %.&gt;%</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  set_indicator(., z = a IN c())</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> SELECT *, 0 AS `z` FROM (</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  SELECT *, `a`  IN (  '1'  ,  '2'  )  AS `one_two` FRO