basic elastic connector implementation

[takkarharsh]

I tried running the code for earlier PR 2953 raised for elastic search , but i was not able to run it due to some package issue,
I have updated the code and , now it is able to connect to elastic search , however ui view and agg function needs to be corrected further

upgrade steps
cd $SUPERSET_HOME
pip install . --upgrade
superset db upgrade
superset init

[mistercrunch]

Can you keep my commit(s) intact so we can identify what's been put on top easily and keep have the history attributed to the right contributor.

[takkarharsh]

@mistercrunch I have cherry picked your changes and again merged the change, Thanks for pointing it.

[takkarharsh]

@mistercrunch Please have a look for the validity of implementation, if it looks good, let us know the further steps to fix the integration issues

[mistercrunch]

We don't use the term "slice" anymore and use "chart" instead. We haven't remove slice references to object names and such, but from all user-facing terminology

[mistercrunch]

That's generally the right direction. I think the though part will be around filling up the methods in models.py

[codecov-io]

Codecov Report

Merging #5358 into master will increase coverage by 10.6%.
The diff coverage is 48.59%.

@@            Coverage Diff             @@
##           master    #5358      +/-   ##
==========================================
+ Coverage   48.34%   58.95%   +10.6%     
==========================================
  Files         328      375      +47     
  Lines       14762    24153    +9391     
  Branches     2758     2758              
==========================================
+ Hits         7137    14239    +7102     
- Misses       7610     9899    +2289     
  Partials       15       15

Impacted Files	Coverage Δ
superset/config.py	92.53% <ø> (ø)
superset/connectors/elastic/__init__.py	100% <100%> (ø)
superset/connectors/druid/views.py	68.45% <100%> (ø)
superset/connectors/elastic/models.py	38.9% <38.9%> (ø)
superset/connectors/elastic/views.py	70.79% <70.79%> (ø)
superset/views/core.py	73.37% <0%> (ø)
superset/data/countries.py	100% <0%> (ø)
superset/models/annotations.py	92.85% <0%> (ø)
superset/views/annotations.py	67.64% <0%> (ø)
... and 42 more

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[bipinsoniguavus]

@mistercrunch we are getting the following error Multiple head revisions are present for given argument 'head'; please specify a specific target revision, '<branchname>@head' to narrow to a specific head, or 'heads' for all heads, could you please guide us why it happens everytime when we commit our code? we are fixing it by running superset db merge heads to resolve this problem, but we don't want to do on each commit. Please suggest the proper way to resolve it.

[takkarharsh]

Hi @mistercrunch, Please let us know the correct way to merge head as , every time there is a new checkin in master we get multiple head issue

[TimHeckel]

The requirements.txt file lists 5.5.3 as the minimum version for elasticsearch. Official SQL support landed in elasticsearch as of 6.3.0. It seems like this PR is still predicated on 5.5.3? Much like its predecessor? With perhaps an attempt to map the SQL coming in the SQL alchemy api without relying on the new sql _translate endpoint? If that's the intent here, I think it would be smart to focus solely on ES 6.3.0+ -- am I understanding this correctly?

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[mistercrunch]

https://preset.io/blog/2019-12-16-elasticsearch-in-superset/