Can you give me a nudge in the right direction for getting a RelNode to execute as a query? I figure it must be possible, since that seems to be the motive behind the recent RelBuilder addition. I'm guessing there is some step to convert the RelNode into a QueryProvider Expression, but I'm stuck figuring out where that happens.
> On Aug 5, 2015, at 6:58 PM, Julian Hyde <[email protected]> wrote: > > Or… write a user-defined table function “jsonPlan”. It takes a varchar > argument (the json plan) and expands to the plan. Then use “select * from > (table jsonPlan(‘xxx’)”. The nice thing about that is that all the magic > happens server side, and you don’t need to change the JDBC framework. > > Julian > >> On Aug 5, 2015, at 3:52 PM, Marc Prud'hommeaux <[email protected]> wrote: >> >> >> That would explain why I couldn't figure out how to do it. >> >> For the project I'm working on, I want to be able to serialize RelJson to >> .json files and then re-execute them later in a web microservices framework. >> It occurs to me that the Avatica server does 90% of what I want. Is it >> plausible that a "rel" JSON property might be queried in >> org.apache.calcite.avatica.Meta and used to execute the query (preempting >> the "sql" JSON property)? If the idea is sound, I may take a stab at >> implementing it. >> >> Bonus question: has anyone considered creating a JSON Schema definition for >> the RelJson and ModelHandler JSON formats? It could come in handy for people >> who want to implement an Avatica client in another language. >> >> >>> On Aug 5, 2015, at 5:27 PM, Julian Hyde <[email protected]> wrote: >>> >>> I don’t think there is — but I always hoped to create one. >>> >>> >>>> On Aug 5, 2015, at 2:21 PM, Marc Prud'hommeaux <[email protected]> wrote: >>>> >>>> >>>> Is there a simple way to execute a RelJson directly on a >>>> CalciteConnection, bypassing the SQL parsing stage? >>>> >>> >> >
