Although requirement of such functionality is not usual but there is actually a method "org.apache.calcite.prepare.CalcitePrepareImpl.EmptyScalarTranslator.toRex(Expression expression)" which intended to do translation from linq4j expressions to rex nodes. But since the method is currently supposed to be serving Calcite internal calls only I don't think everything is there.
Hongze > On Jun 5, 2019, at 05:15, Haisheng Yuan <[email protected]> wrote: > > Hi Khai, > > I don't think there is such kind of utility function in Calcite. > > - Haisheng > Yuan------------------------------------------------------------------ > 发件人：Khai Tran<[email protected]> > 日 期：2019年06月05日 01:28:21 > 收件人：[email protected] ([email protected])<[email protected]> > 主 题：Linq expressions to RexNode > > Just a bit strange, but just wonder if in calcite code base, is there any > util function to convert linq expression back to RexNode? >
