  execution parameters being used by partition pruning changes.
       Determining if partitions were pruned during this phase requires
       careful inspection of the <code class="literal">loops</code> property in
       the <code class="command">EXPLAIN ANALYZE</code> output.  Subplans
       corresponding to different partitions may have different values
       for it depending on how many times each of them was pruned during
       execution.  Some may be shown as <code class="literal">(never executed)