H2 数据库 Postgres 模式 Upsert

Question

当 H2 数据库处于 Postgres 模式时，如何检查它是否支持以下语句（upsert / on conflict）

INSERT INTO event_log_poller_state (aggregate_type, consumer_group_id, value) 
VALUES (?, ?, ?) 
on conflict (aggregate_type, consumer_group_id) " +
                    " do update SET VALUE = ? 
WHERE
  event_log_poller_state.aggregate_type = ? AND
  event_log_poller_state.consumer_group_id = ?

我收到语法错误 42000

我写了以下程序来演示

https://github.com/tonymurphy/h2-postgres

2019 年 10 月编辑：结帐https://github.com/whisklabs/docker-it-scala或 testcontainers.org

Answer 1

有合并应该做同样的事情： https://www.tutorialspoint.com/h2_database/h2_database_merge.htm

MERGE INTO tableName [ ( columnName [,...] ) ] 
[ KEY ( columnName [,...] ) ] 
{ VALUES { ( { DEFAULT | expression } [,...] ) } [,...] | select } 

另请参阅https://github.com/h2database/h2database/issues/2007#issuecomment-1152312049