title: How can I modify/update multiple values in a json array
body: <p>Let's say I have a database jsonb column with a json array in the following format:</p>
  
  <pre><code>[
    {
      "test1key": "test1Value"
    },
    {
      "test2key": "test2Value"
    },
    {
      "test3key": "test3Value"
    }
  ]
  </code></pre>
  
  <p>Is it possible, in a <strong>single query</strong>, to update the value of "test1key" as well as "test2key"? If so, how?</p>