Dear Dustin ~ The TIMESTAMPADD(unit, count, timestamp) => timestamp + count * INTERVAL ‘1’ UNIT [1] conversion happens atomically during the sql-to-rel phrase, and there is no way to “stop” the rewrite by config.
There is a hack way to implement this, you can overwrite the SqlTimestampAddFunction#rewriteCall and implement an operator of your own, but then you should translate the operator by your self. [1] https://github.com/apache/calcite/blob/4d1c3e54fc4172c7ff00db3326823c42f237cf04/core/src/main/java/org/apache/calcite/sql2rel/StandardConvertletTable.java#L1443 Best, Danny Chan 在 2019年11月10日 +0800 AM8:30，Dustin Freeman <[email protected]>，写道： > Hi, > > It seems that Calcite rewrites TimestampAdd(x, 100) to following expression > [+($3, *(12:INTERVAL YEAR, 100))] > > Can anyone tell me how to stop above rewrite? > > Thanks, > > Dustin
