en operator"> = </span>null</span></span><span class="token punctuation">)</span></div><p class="paragraph">Postgres only. Specifies that no operation should be performed when no matching record is found in the destination table.</p><h4 class="">Parameters</h4><div class="table"><div class="table-row" data-filterable-current=":exposed-core/main" data-filterable-set=":exposed-core/main"><div class="main-subrow keyValue "><div class=""><span class="inline-flex"><div><u><span><span>and</span></span></u></div><