Look through git history for changes related to Parser.jj and SqlParserTest.java.
If you can’t figure out what the parser engine is from that, I don’t think it’s likely that you will be able to pull off this change. Julian > On Apr 17, 2017, at 4:58 PM, Yishu_Coder Lin <[email protected]> wrote: > > Hi Julian, > > Thanks for the advise! What is the engine to parse Parser.jj? Where can I > find the document to learn how to use it? > > Best, > Yishu > > On Mon, Apr 17, 2017 at 4:55 PM, Julian Hyde <[email protected]> wrote: > >> Sure, you could change the parser. I suggest you add a few tests to >> SqlParserTest and then change Parser.jj until the tests pass. You could >> then translate your query to the same as RelNode tree as “select * from A >> limit 10”, and Calcite can execute that. >> >> Log a JIRA case describing the syntax you intend to implement. >> >> Julian >> >> >>> On Apr 17, 2017, at 4:46 PM, Yishu_Coder Lin <[email protected]> >> wrote: >>> >>> Hi guys, >>> >>> I just started to use Calcite's SQL parser. I am working on a project >>> related to Teradata and I found calcite doesn't support SQL syntax like >>> 'select top 10 * from A'. >>> >>> Is there anyway that I can change the parser to support syntax like this? >>> Please advise. Thanks! >>> >>> Regards, >>> Yishu >> >>
