Add ipoc resampling

testing by querying all data of 2017

speed of new resampling seems quite good

Nice. Not immediately clear to me from the code: are you forward-filling or backward-filling when doing the 1s resampling? Should be forward-fill.

I tested it on a small example yesterday and the result showed a forward fill.

testing on 1 month of data for speed (22min for 2.677.746 entries)

• this fixed the bug which caused all rows to be thrown away
• works on data from 1 month
• testing for 1 year (2017)

• Get core dump for resample of 1 year

• 1 month gives BroadcastTimeout -> rerunning with timeout turned off

Retrieved 9 months of data (in 1 month segments)

added 78 commits

• 8dba5b59...3df29dcd - 77 commits from branch proposed-master
• db781be9 - Merge branch 'proposed-master' into 'add-ipoc-resampling'

Compare with previous version

merged

mentioned in commit 34dfaa70