我有一个由 Hibernate 为 JBPM 生成的复杂查询。我无法真正修改它，我正在寻找尽可能优化它。
我发现 ORDER BY DESC 比 ORDER BY ASC 慢得多，你有什么想法吗？
PostgreSQL 版本：9.4 架构：https://pastebin.com/qNZhrbef 查询：
select
taskinstan0_.ID_ as ID1_27_,
taskinstan0_.VERSION_ as VERSION3_27_,
taskinstan0_.NAME_ as NAME4_27_,
taskinstan0_.DESCRIPTION_ as DESCRIPT5_27_,
taskinstan0_.ACTORID_ as ACTORID6_27_,
taskinstan0_.CREATE_ as CREATE7_27_,
taskinstan0_.START_ as START8_27_,
taskinstan0_.END_ as END9_27_,
taskinstan0_.DUEDATE_ as DUEDATE10_27_,
taskinstan0_.PRIORITY_ as PRIORITY11_27_,
taskinstan0_.ISCANCELLED_ as ISCANCE12_27_,
taskinstan0_.ISSUSPENDED_ as ISSUSPE13_27_,
taskinstan0_.ISOPEN_ as ISOPEN14_27_,
taskinstan0_.ISSIGNALLING_ as ISSIGNA15_27_,
taskinstan0_.ISBLOCKING_ as ISBLOCKING16_27_,
taskinstan0_.LOCKED as LOCKED27_,
taskinstan0_.QUEUE as QUEUE27_,
taskinstan0_.TASK_ as TASK19_27_,
taskinstan0_.TOKEN_ as TOKEN20_27_,
taskinstan0_.PROCINST_ as PROCINST21_27_, …