title: Named parameters in Yesql
body: <p>How can one use named parameters when running queries using Yesql? For instance, given the following query</p>
  
  <pre><code>-- name: example
  select * from table1 where col1=:value1 and col2=:value2
  </code></pre>
  
  <p>i'd like to use the following code:</p>
  
  <pre><code>(defquery q "query.sql")
  (q db {:value1 "A" :value2 "B"})
  </code></pre>
  
  <p>Right now, Yesql treats the map as a single positional parameter.</p>
  
  <p>Thanks!</p>