an class="s2">&quot;desc&quot;</span>:<span class="w"> </span><span class="s2">&quot;This is a schema description about the table default/test&quot;</span>
<span class="s2">&quot;fields&quot;</span><span class="w"> </span>:<span class="w"> </span><span class="o">[{</span><span class="s2">&quot;name&quot;</span>:<span class="w"> </span><span class="s2">&quot;nickname&quot;</span>,<span class="w"> </span><span class="s2">&quot;type&quot;</span>:<span class="s2">&quot;string&quot;</span>,<span class="w">  </sp