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我一直在使用 hive-jdbc beeline 来执行我的 hive 查询,并且由于一些限制,我正在使用 dremio 来执行我的 hive 查询。而且我没有在dremio 中获得与 collect_set等效的功能。如果有人提供替代解决方案,我将不胜感激
CASE WHEN COLLECT_SET(BGCODE)[0] IS NULL THEN '' ELSE COLLECT_SET(BGCODE)[0] END as BGCODE