There is some documentation: https://calcite.apache.org/docs/adapter.html#extending-the-parser <https://calcite.apache.org/docs/adapter.html#extending-the-parser>.
> On Jul 29, 2021, at 7:04 PM, Vladimir Sitnikov <[email protected]> > wrote: > > https://issues.apache.org/jira/browse/CALCITE-4701 seems relevant. > > I do not know if "parser extension" build system plugins already exist, > however, I think it would be nice to have one in Calcite. > > Vladimir
