Emmanuel

SQL parser is one of the components of Qserv.
I'd suggest to have a look at:

https://dev.lsstcorp.org/trac/wiki/db/Qserv/ParserRedesign

and see if we can find any commonalities...

I am moving this discussion to the qserv mailing list.

Thanks,
Jacek


> One of the first Task for Emmanuel will be to produce a SQL parser/compiler in order to translate SQL queries into whatever language the backend needs. The motivation for this is to get the needed flexibility to adapt to any given backend. Apparently he didn't found yet a satisfactory solution which both provides the needed flexibility and the specifics for astronomical interrogation. The expected deliverable would be a standalone package that he will use later on to branch the different backends on, but which could also be used internally into Qserv or other astrophysical databases systems. He hopes to come with a first prototype in the forthcoming months. Actual benchmarking on alternate solutions depend on this SQL parser/compiler.
>
> Even if this development is not directly related to Qserv mainstream development, I would like to have this done in link with the developer team, or at least that Emmanuel's progresses will be visible from your side. Do you think it would be appropriate to use a Qserv-wiki page related to this development, where Emmanuel can publish his results ?
>
> Emmanuel developed an expertise on the data loading using Qserv. For instance, he made a 1Tbyte ra-dec convex  sub-set of the demultiplied PT1.2 in order to serve as a reference for benchmarks. He will keep using his expertise in data loading for Qserv related work, when needed (for instance for the next benchmarks).
>

########################################################################
Use REPLY-ALL to reply to list

To unsubscribe from the QSERV-L list, click the following link:
https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=QSERV-L&A=1