Aaron Davies

Morgan Stanley

adavies42

@Alvin Shih

Morgan Stanley

alvin-c-shih

Peter Gyorok

Morgan Stanley

gyorokpeter

Gary Davies

AquaQ Analytics

drgdavies

Jonny Press

AquaQ Analytics

jonnypress

5 min

Convene & roll call.

All

5 min

Review and approve minutes from last meeting.

All

• Reminded to add "3.6 2018.08.24 release of q supports passing a dictionary."

10 min

.finos.conn Connection Manager now available on GitHub:

• https://github.com/finos/kdb/tree/master/conn

Please give it a try and provide feedback.

All

• kdb plants that use service discovery like Zookeeper might find .finos.conn a natural fit.

5 min

.finos.query.ungroup[...] now available on GitHub.

• https://github.com/finos/kdb/tree/master/query

Can probably be made more efficient.  Feel free to submit pull requests.

All

• No discussion required.

5 min

Any further discussion on awq?

• https://github.com/adavies42/qist/blob/master/lib/awq.q

All

• Participant who showed interest on last call not dialed in.
  
  

  • Revisit later.

10 min

Any success stories of kdb+ with Grafana?

• https://www.aquaq.co.uk/q/aquaq-grafana-kdb-adapter/

• https://en.wikipedia.org/wiki/Grafana

See how to popularize integration with kdb+.

All

• AquaQ having a webinar on the 14th.  For details, see:

  • https://www.aquaq.co.uk/q/aquaquarantine-kdb-tech-talks/

• Recordings for previous webinars posted here:

  • https://www.aquaq.co.uk/q/aquaquarantine-kdb-tech-talks-2/

10 min

kdb+ 4.0 wrapper functions?

• Functions to push / restore number of slave threads when calling new Multithreaded primitives?

  • https://code.kx.com/q/kb/mt-primitives/

• Any need for abstraction over .m namespace support for Optane memory?

  • https://code.kx.com/q/ref/dotm/

All

• In kdb+ 4.0 -s specifies maximum threads for the session.
  
  

  • Not enough experience yet to determine what kinds of wrappers are necessary (if any).

• Will revisit Optane once it's more widespread.

5 min

Signatures for renaming keys / cols?  One idea:

• .finos.query.renameKeys[inputDict;mappingDict]

• .finos.query.renameCols[inputTab;mappingDict]

All

• APL convention puts the modifier parameter on the left.  Therefore, the signatures should be:
  
  

  • .finos.query.renameKeys[mappingDict;inputDict]

  • .finos.query.renameCols[mappingDict;inputTab]

5 min

AOB

All

• kdb mentioned in this thread on HackerNews about APL:
  
  

  • https://news.ycombinator.com/item?id=23055793