Apachge Ignite SQL是否支持MERGE WHEN？

Question

Apache Ignite SQL支持MERGE语句。此支持是否扩展到MERGE WHEN（例如，在H2中）？例如

 MERGE INTO account (client_id, tran_ccy, last_tran_dt)
  (SELECT DISTINCT client_id, tran_ccy, Max(tran_dt) 
   FROM transaction
   GROUP BY client_id, tran_ccy)
 WHEN MATCHED THEN 
   UPDATE SET last_tran_dt = tran_dt
 WHEN NOT MATCHED THEN
   INSERT (client_id, tran_ccy, last_tran_dt)
   VALUES (client_id, tran_ccy, tran_dt)

Answer 1

据我所知，Ignite仅支持MERGE中的简单H2，而没有USING语句。 这是简单格式http://www.h2database.com/html/commands.html#merge的语法。 https://apacheignite-sql.readme.io/docs/merge也在此进行了描述。