Standalone like operator

[etiennedi]

closes #1291

[codecov]

Codecov Report

Merging #1297 (299b7b2) into master (625483a) will decrease coverage by 0.00%.
The diff coverage is 72.85%.

@@            Coverage Diff             @@
##           master    #1297      +/-   ##
==========================================
- Coverage   73.67%   73.67%   -0.01%     
==========================================
  Files         211      212       +1     
  Lines       21143    21209      +66     
==========================================
+ Hits        15578    15626      +48     
- Misses       4323     4332       +9     
- Partials     1242     1251       +9     

Flag	Coverage Δ
integration	67.97% <72.85%> (+0.04%)	⬆️
unittests	73.67% <72.85%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ers/repos/db/inverted/searcher_value_extractors.go	38.63% <42.85%> (+0.79%)	⬆️
adapters/repos/db/inverted/row_reader.go	65.55% <56.66%> (-3.30%)	⬇️
adapters/repos/db/inverted/like_regexp.go	88.88% <88.88%> (ø)
adapters/repos/db/helpers/tokenizer.go	100.00% <100.00%> (ø)
adapters/repos/db/inverted/searcher.go	74.19% <100.00%> (+0.98%)	⬆️
adapters/repos/db/aggregator/text.go	77.58% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0c40c87...299b7b2. Read the comment docs.