It seems analogous to the Postgres-style ‘::’ cast operator. We’d want to support it in Babel but not the core parser. Can you log a JIRA case analogous to https://issues.apache.org/jira/browse/CALCITE-2843 <https://issues.apache.org/jira/browse/CALCITE-2843>.
> On Jan 7, 2022, at 3:06 AM, 徐仁和 <xurenhe19910...@gmail.com> wrote: > > Hi calcite community. > > In my case, we need calcite's parser support operator '<=>' of mysql. > > Link: > https://dev.mysql.com/doc/refman/8.0/en/comparison-operators.html#operator_equal-to > > I debug it, I find I need to modify the Parser.jj in calcite, to define a > new token for '<=>'. > > So, could I expand the Parser.jj of calcite, and support this new operator. > > Best, > XuRenhe
