Info: Array / raster / datacube QL standards

pebau commented 12 months ago

Dear community,

following advice on the CNCF page I provide some input here after discovering this community in an act of serendipity - hope it is ok, and apologies if not; kindly advise.

I see that the group is interested in QL development. If we look at the data structures appearing in real-life applications, we find about 4 basic main categories: sets, hierarchies, graphs, and arrays. None of them can satisfactorily emulate another one when it comes to Big Data and their management & querying. We all know QLs for sets (eg, SQL), hierarchies (eg, XQuery), and graphs (eg, Cypher and ISO GQL); we focus on arrays, and I would like to bring several relevant standards to the group's attention:

ISO 9075-15:2023 SQL/MDA (Multi-Dimensional Arrays) offers declarative array queries embedded in SQL in a domain-agnostic manner.
OGC WCPS (Web Coverage Processing Service) offers declarative queries based on the same underlying principles, but (i) with support for space and time semantics and (ii) adopting an XQuery-style syntax to be compatible with the XPath/XQuery world -- tutorial. WCPS also forms the basis for ISO TC211 19123-3.

Background about me:

our university research group with publications
our academic spinoff company
our Array DBMS, rasdaman

If deemed interesting I could join some meeting to present an overview for discussion.

Again, my apologies should I act intrusively.

manolama commented 1 month ago

@pebau I'm so sorry I didn't see this earlier! Yes we'd love to have you participate and learn more about the array queries and WCPS.

pebau commented 1 month ago

@manolama sounds great - can you advise me about next steps?

manolama commented 4 weeks ago

@pebau I pinged you on LinkedIn and we can share details there

cncf / tag-observability

Info: Array / raster / datacube QL standards #139